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DSM Success Story
Thermal Analysis of LED Lamps using AcuSolve

Performance Evaluation, Scalability Analysis, and Optimization Tuning of Altair HyperWorks on a Modern HPC Compute Cluster
Engineers from wide ranges of industries face ever increasing needs for complex, realistic models to analyze the most challenging industrial problems; AcuSolve is designed to tackle these finite element-based Computational Fluid Dynamics (CFD) simulations with superior robustness, speed, and accuracy. AcuSolve simulations are designed to carry out on large-scale computational systems effectively. The breakthrough in HPC parallel computing that allows such complex analyses to be performed that generate the high-quality results, while reducing simulation time from days to just hours. Behind this type of computational improvement that makes AcuSolve perform, it involves complex calculations and data exchanges among computational systems. The more complex simulations are being performed, the higher demands from the cluster performance are. In this analysis, the HPC Advisory Council has performed a deep investigation and profiling for the AcuSolve CFD solver to evaluate its performance and scaling capabilities and to explore potential optimizations. This study presents the optimization techniques and networking profiling results to further understand AcuSolve dependencies on the CPUs, communication networks, IO subsystems and the underlying hardware. The paper will review the effects by comparing various hardware using different simulation models.


UK ATC 2015: CFD - A Practical Tool for Large Passenger Carrying Vehicles
Presentation by Laurence Wood, Plaxton


HyperWorks 14.0 Webinar: Computational Fluid Dynamics
Whether you’re an analyst performing CFD modeling every day, or an engineer with a need to understand the impact a CFD analysis will have on a proposed design, HyperWorks offers a complete suite of tools for both the expert and novice users. From detailed component analysis to full systems performance, HyperWorks is your solution for problems ranging from 100,000 to 1,000,000,000 elements in size with parallel scalable solvers and robust pre and post processing software.

In this webianr, you will learn about the new features available in Altair's flagship CFD solver, AcuSolve, as well as what's new in HyperWorks for CFD pre and post processing.

More Efficient and Economic Injection Mold Tools thanks to Topology Optimization, CFD Simulation and 3D Printing
Toolmaking is usually characterized by cost-intensive, custom made, single-unit production. To create innovative tools, the industry increasingly relies on new manufacturing methods such as 3D printing. To meet market demand, PROTIQ GmbH, a spinoff from Phoenix Contact needed to increase productivity through more efficient injection mold tools. The Altair solution included development of optimized tools using simulation, optimization and additive manufacturing (model setup with HyperMesh, topology optimization and FE analysis with OptiStruct, CFD analysis with AcuSolve and refinement with solidThinking Evolve. The benefits included increased productivity due to shorter production cycles, weight reduction of 75%, shortened development time and production costs reduced by 25%.

Efficient Injection Molding Tools through Optimization, CFD Simulation and 3D Printing
The company PROTIQ (www.protiq.com) worked with Altair and created a highly efficient molding tool. Optimization with OptiStruct was used to find the optimal design to guarantee the maximum tolerances of the generated products. The cooling process of the product was simulated with CFD (AcuSolve). As an overall result, the cycle time could be significantly decreased and the part quality also improved due to lower thermal deformations.

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Webinar: Applications for Thermal and Fluid Coupling
Altair’s AcuSolve CFD solver is capable of simulating complex multiphysics phenomenon including Heat Transfer-CFD coupling. In this webinar, two use cases are presented, using two very different calculation approaches.



Smart Multiphysics Solving for Structural Responses based on Fluid Temperature Loading


HyperWorks Virtual Wind Tunnel on Cray: Benchmarks and Recommended Configurations
With Altair’s HyperWorks Virtual Wind Tunnel running on Cray XC30 or CS300 systems, manufacturers of all sizes can now predict a vehicle’s external aerodynamic performance without the need for numerous physical wind tunnel tests. This document includes scalability benchmarks for both small and large problems, along with Cray’s recommended system configurations to run Virtual Wind Tunnel.

Optimizing Cooling Passages in Turbine Blades
Turbine blades have internal passages that provide cooling during operation in a high
temperature engine. The design of the cooling passages is critical to achieve near uniform
temperature of the blade during operation. The temperature of the blade is dependent on the thermal properties of the blade material as well as the fluid dynamics of the air circulating in the cooling passages. Computational optimization methods have successfully been applied to design lighter and more efficient structures for many aerospace structures. An extension of these techniques is now applied to guiding the thermal design of a turbine blade by designing the optimal cooling passage layout. Optimization methods will be applied to determine the optimum pattern of the cooling passages and then to optimize the size of the individual cooling passages. The goal is to produce a more thermally efficient turbine blade design that will produce blades with longer lives and better performance.


Aeroelastic Investigation of the Sandia 100m Blade Using Computational Fluid Dynamics
Recent trends in wind power technology are focusing on increasing power output through an increase in rotor diameter. As the rotor diameter increases, aeroelastic effects become increasingly important in the design of an efficient blade.

Euro-Pro Embraces Simulation-Driven Design with Altair HyperWorks
Euro-Pro, maker of Ninja blenders and Shark vacuums, has embraced simulation-driven design to reduce physical tests and improve product performance and durability. HyperWorks solvers (OptiStruct, RADIOSS and AcuSolve) are used across the board via Altair’s HPC cloud infrastructure


Improving the Design of Subsea Riser Systems: A Cray-Altair Solution for Improved Oil & Gas Component Engineering
With Cray and Altair, engineers have the computational systems they need to perform advanced subsea computational fluid dynamics (CFD) analysis with better speed, scalability, and accuracy. With Altair’s AcuSolve CFD solver running on Cray XC supercomputer systems, operators and engineers responsible for riser system design and analysis can increase component life, reduce uncertainty, and improve the overall safety of their ultra-deep-water systems while still meeting demanding development schedules.

DeWalt Optimizes Power Tools with HyperWorks
The development of modern electric power tools requires special attention to be simultaneously paid to both the efficiency and user comfort of the tool, as well as the robustness and durability of the devices. For the fulfillment of these two groups of attributes, computer-aided simulations using HyperWorks has become central to the development process of Stanley Black & Decker Deutschland GmbH.

Webinar: Structural and Thermal Coupling with Electromagnetic Systems
Electromagnetic phenomenon may induce undesired effects such as heat or vibrations. To predict and correct them by simulation, it is necessary to couple all phenomenon. Altair HyperWorks software suite is a perfect solution for this and in this webinar, two use cases will be demonstrated, where Flux is coupled with OptiStruct and AcuSolve.

Using HyperWorks® to Optimize Structural Strength for Argon 18 High-performance Bikes
Argon 18 recently partnered with the ÉTS Research Chair on Engineering of Processing, Materials and Structures for Additive Manufacturing to manufacture a new track bike for Lasse Norman Hansen, one of the athletes competing for the Danish team in track cycling at the 2016 Rio Olympic Games. Their aim was to develop a bike that was stiffer, highly integrated, more aerodynamic, providing greater efficiency. An important aspect of the project was the development of a new aluminum stem to be used by Mr. Hansen in the Flying Lap event which is achieved by the fastest lap from the moving start. Altair solutions included OptiStruct for structural analysis, AcuSolve® for CFD, and Virtual Wind Tunnel.

Testing Aerial Ladders in FEA: Wind Load Standard Equation vs CFD Wind Tunnel Analysis
To design and build an aerial ladder for a firetruck, the engineer needs to accurately determine the working loads the ladder will encounter. Some of these can be easy to interpret such as the weight of the firefighter in the basket at the end of the ladder, or the weight of the water being supplied to the nozzle. Other loads can be a little harder to quantify, such as how wind affects the ladder. There are several different ways to determine this effect, and two of those will be explored in this paper: the standard equation (ASCE 7-10), and CFD.

SimLab Tutorials - Setting up a CFD Steady State Analysis - Manifold
Define boundary and initial conditions; create material and apply properties; edit the solver settings to run the analysis

SimLab Tutorials - Solutions Based Steady Flow in a Centrifugal Blower
Create a tetra mesh with CFD boundary layer; work with moving reference frame; define CFD boundary conditions based on turbulence viscosity ratio; edit the solver settings; run and post-process the analysis

Cleveland Golf Drives Product Innovation Through Simulation and Optimization Using HyperWorks
Much more goes into a golf club than simply wood, iron and graphite. To shape the performance, the distinctive appearance, the personalized feel and even the sound of the club striking the ball, manufacturers must precisely engineer every aspect of the design. Today, simulation-driven design has dramatically reduced development time for new golf clubs while allowing them to meet strict regulations more efficiently.

HyperWorks provides flexibility and agility to development processes of Engineering Services Provider Beta Epsilon
Beta Epsilon designs racing cars and offers engineering. Beta Epsilon offers component and vehicle meshing, FEA analysis of metal and composite components, crash test simulation, optimization, and CFD simulation. Beta Epsilon uses HyperMesh, OptiStruct, HyperCrash, RADIOSS, AcuSolve, HyperView, and Virtual Wind Tunnel. With HyperWorks, Beta Epsilon could improve the quality of its products and extend its range of services.

Subros Leverages Altair HyperWorks® to Build Optimized Product Designs While Reducing 60% Simulation Time and 40% Prototyping Costs
Subros is the leading manufacturer of thermal products for automotive applications in India and operates in technical collaboration with Denso. Being a major supplier of AC units to the predominant automotive segments and all classes of vehicles produced by global players in the country, it is very important for Subros to honor deadlines of product delivery with agreed benchmarks of quality. The Subros team has used Altair solutions such HyperMesh for FE modeling, RADIOSS and OptiStruct for structural analysis, AcuSolve for flow analysis, and solidThinking Inspire for Modal Analysis

SimLab for CFD and Multiphysics Webinar
This webinar shows Altair's streamlined thermal fluid-structure interaction workflow for powertrain components.

Leveraging Altair's CFD and structural analysis solvers, SimLab now offers a streamlined workflow that enables pre-, solver, and post-processing for thermal FSI within a single interface. The webinar will cover extraction of fluid surfaces to build CFD domains from solid bodies, defining loads and constraints, solver setting for conjugate heat transfer (CHT) and computing deflections and thermal stresses and post-processing structural and thermal-flow results.

Aircraft Radome Multiphysics Using Simulation
Watch this webinar to see a demonstration of a multiphysics simulation approach using the Altair HyperWorks platform for the analysis of airborne radomes for electromagnetic , structural, aerodynamic, and bird strike performances.

Improved Turbulence Models
Major improvements have been made to the SST and k-omega turbulence models within AcuSolve. The new formulation improves the accuracy and robustness of the models by incorporating a change in variables for the omega equation.

Better Indoor Climate thanks to Simulation and Optimization
Kampmann GmbH is an internationally leading specialist for heating, cooling, air-conditioning and integrated building automation. Within their virtual development process they are using the Altair HyperWorks® software suite, in particular AcuSolve®, the CFD solver; OptiStruct®, the suite's FE-solver and an optimization tool; and HyperMesh® for modeling and meshing tasks. For plant control design, Kampmann is currently considering solidThinking Activate®, a mapping software for control systems. Thanks to simulation, Kampmann engineers are now able to answer questions regarding the internal processes of the system, which are difficult, if not impossible, to study through physical testing.

HyperWorks - Intel-Colfax-Altair Trial Cluster Testimonial: Suncoke Energy
Suncoke used Colfax’s “Try Before You Buy” cluster trial program to run an AcuSolve simulation for analyzing the flow dynamics of a system under negative pressure and extreme temperatures. Their job ran over 16x faster on the cluster.

An Aerodynamic Study of Bicycle Wheel Performance Using CFD
A methodology is presented to apply CFD to study air flow around a rotating bicycle wheel in contact with the ground. The bicycle wheel studied here is an accurate geometrical representation of a commercial racing wheel (Zipp 404). Reynolds-Averaged Navier Stokes (RANS) and Delayed Detached Eddy Simulation (DDES) results are computed at a range of speeds and yaw angles commonly encountered by cyclists. Drag and side (or lift) forces are resolved and compare favorably to experimental results obtained from wind tunnel tests. Vertical forces acting on a rotating bicycle wheel are presented for the first time. A unique transition from downward to upward acting force is observed as the yaw angle is increased. Flow structures are identified and compared for different yaw angles. It is expected that a more complete comprehension of these results will lead to improvements in the performance and handling characteristics of bicycle racing wheels used by professional cyclists and triathletes.

A Comparative Aerodynamic Study of Commercial Bicycle Wheels Using CFD
A CFD methodology is used to study the performance of several commercial bicycle wheels over a range of speeds and yaw angles. The wheels studied in this work include the Rolf Sestriere, HED H3 TriSpoke, the Zipp 404, 808 and 1080 deep rim wheels and the Zipp Sub9 disc wheel. Wheels are modeled at speeds of 20mph and 30mph, in contact with the ground, using Reynolds-Averaged Navier Stokes (RANS). Drag, vertical and side (or lift) forces are reported for each wheel. Turning moments are also calculated using the resolved side
forces to examine aspects of stability and maneuverability. Drag and side forces over the range of yaw angles studied compare favorably to
experimental wind tunnel results. The previously reported unique transition from downward to upward acting vertical force on the Zipp 404 wheel for increasing yaw angles is observed for all deep rim wheels and the disc wheel studied here. Wheels were also modeled at a critical yaw angle of 10 degrees using Delayed Detached Eddy Simulation (DDES) to examine the transient aspects of flows around moving bicycle wheels. It is hoped that a more complete comprehension of these results will lead to improvements in performance, safety and control of bicycle racing wheels used by amateur and professional cyclists and triathletes.

A Practical Analysis of Unsteady Flow Around a Bicycle Wheel, Fork and Partial Frame Using CFD
CFD is used to study air flow around a rotating bicycle wheel in contact with the ground, extending previous ‘wheel-only’ work on this problem by including the fork, head tube, top tube, down tube, caliper and brake pads. Unsteady simulations, using a Delayed Detached Eddy Simulation (DDES) turbulence model, were run for 9 different wheel and front fork configurations, over 10 different operating conditions (5 yaw angles, repeated for two different speeds, commonly encountered by cyclists), resulting in 90 transient design points.

CFD Advances Racing Bike Performance
Highly automated computational fluid dynamics (CFD) workflows enable the discovery of flow behaviors, improving wheel aerodynamics.



Mathew N. Godo, Ph.D. and David Corson, Ph.D.

Concept To Reality Summer / Fall 2012 Subscribe to C2R Magazine

Hot Stamping Process Simulation Using Integrated using Structural & CFD Analysis
Hot stamped steel parts are being increasingly used in automotive structures for their higher strength to meet safety standards while reducing vehicle weight to improve fuel consumption. However, manufacturing of sheet metal parts by hot stamping to achieve desired properties is extremely challenging as it involves complex interaction of plastic deformation, metallurgical change, thermal distribution, and fluid flow.

Webinar: HyperWorks for FSI Simulations
Altair’s HyperWorks software suite offers a wide variety of solvers able to simulate complex physical phenomenon, including multiphysics. Therefore, complex FSI applications can be solved, such as ditching or aeroelasticity, as will be shown in the two use cases presented in this webinar.

Altair Aerospace: Fail-safe and Multiphysics Optimization
This webinar covers the complete fail-safe optimization process of a wing rib starting with the search of a new and more efficient design to the calculation of optimum dimensions. The replacement of a metallic fitting by an organic 3D printed version, while increasing performances and decreasing mass reduction is discussed as well. HyperStudy has also been used to perform multi-disciplinary studies throughout the process.

AcuTrace - 2 Way Mixing
AcuTrace has been enhanced to support tracing of spherical particles having finite mass. When exercising this option, the particle velocity is no longer governed solely by the local flow velocity.

Transient Finite Mass Particle Tracing
AcuTrace has been enhanced to support finite mass particle tracing. Common applications for finite mass particle tracing include fluidized bed simulations and other applications involving the transport of small particles within a flow field.

Static Finite Mass Particle Tracing
AcuTrace has been enhanced to support finite mass particle tracing. Common applications for finite mass particle tracing include fluidized bed simulations and other applications involving the transport of small particles within a flow field.

CFD 14.0 Overview
See an overview of the new features available in the CFD user profile for 14.0.

Fluid - Structure Interaction Analysis and Optimization of an Automotive Component
This paper discusses the behavior of a flexible flap at the rear end of a generic car model under
aerodynamic loads. A strong bidirectional coupling between the flap’s deflection and the flow
field exists which requires this system to be simulated in a coupled fluid-structure manner.

How Advanced Simulation will Impact the Offshore Industry both Now and in the Future
The easy days of Oil and gas extraction is over, and the ability to extract Oil and Gas from harsh enviornments is very dependent on the ability to overcome technical challenges through the use of advanced numerical analysis and simulation.


Mesh Controls
New options to refine the 2D mesh based on the proximity, angle, and shapes have been added. The options can be accessed through the mesh controls, along with surface deviation meshers.

Hole/Gap Fill Utility
This tool is located in the mesh menu for all user profiles. It is a useful utility to fill the holes and feature loops. It works for first order tri or quad elements. Filling selected components has never been easier.

Numerical Wave Tank Analysis of Wave Run-Up On a Truncated Vertical Cylinder
J. Kin, S.Cosgrove, R. Jaiman, and J. O’Sullivan.

VIV Prediction of a Truss Spar Pull-Tube Array Using CFD
Y. Constantinides, S. Holmes, and W. Yu

Dynamic Analysis of Riser Release and Lowering
S. Atluri, N. Liu, A. Sablok, and T. Weaver

Vortex Induced Vibration Analysis of a Complex Subsea Jumper
S. Holmes, and Y. Constantinides

Comprehensive Electromagnetic Analysis and Design
Brochure with global overview of Altair's electromagnetic software solutions.

HyperWorks X CFD
In this course you will have the opportunity to learn about HyperWorks X CFD. Modules contained within the course provide detailed descriptions of the tools and workflows within HyperWorks X CFD. You will also have the opportunity to watch demonstrations and perform hands on exercises throughout the modules.

Cool Stuff: Benefits of System Simulation for Design of HVAC
The increasing virtualization of engineering methods is inevitable. This also holds true for the design of systems that take care for the thermal well-being of humans, e.g. in buildings. If it comes to simulation of so-called HVAC (heating, ventilation, air conditioning) systems, very often high fidelity approaches like CFD are connected to it. In contrary, this contribution illustrates a 1D modeling approach of a heat exchanger in use of Altair Activate.

The presentation explains the implementation of the NTU (Number of Transfer Units) method in a system simulation environment. This includes a short description of the approach itself as well as its current limits. Based on the implementation of a single cell, differing network configurations for the evaluation of use cases of varying complexity will be shown.

A New & Revolutionary Way to Collect Energy from Wind
David Yáñez presents at the UK ATC 2019. Vortex Bladeless is a Spanish start-up that is developing a new wind energy technology. Its key characteristic is the minimization of mechanical elements that can be worn by friction. In the first stage, its application area seems to be distributed energy. For its development, CFD tools are being of vital importance. Both the fluid-structure interaction and the behavior of the magnetic fields in the alternator are being studied mainly with this type of tool. The results obtained are being contrasted with experimental results obtained both in wind tunnel and in real application environments.

A general vision of the technology, the strategies used for the integration of the different physical phenomena involved and the path traveled for its development will be exposed.

Multiphysics Design Optimization Using an Adjoint Sensitivity Analysis
Optimal design methods involving the coupling of fluid and structural solutions are a topic
of active research; particularly for aerospace applications. The paper presents a coupled fluid and structure approach to topology optimization using two commercial finite element solutions; AcuSolve and OptiStruct. A gradient based method is used to minimize the compliance of a structure subject to thermal loading. The optimal material distribution to minimize compliance is computed using the Solid-Isotropic Material with Penalty (SIMP) method available in OptiStruct. A volume fraction constraint is imposed in order to iteratively reduce the parts mass. Draw constraints are used to ensure manufacturability. The thermal loading is computed iteratively using a computational fluid dynamics (CFD) solution from AcuSolve. The optimization produces an innovative design which increases the heat rejection rate of the part while reducing the mass.

Multi-Physics Design and Optimization of a Complex Radar System
Today, most products are complex mechatronic combinations of advanced technologies, mixing electrical parts with controllers and embedded software. To efficiently manage innovative products, organizations are turning to a Model-Based Development approach for concept studies, control design, multi-domain system simulation and optimization. To meet this demand, Altair’s simulation and optimization suite aims to transform design and decision-making throughout product lifecycles with their multi-disciplinary software tools and consultancy services.


Thermal Analysis of Electrical Equipment A review and comparison of different methods
Nowadays, it is more and more difficult to design electro-technique devices without having a look at thermal stress. In more and more applications (more electric vehicles, more electric aircrafts, …) designers need to reduce weight, cost, increase efficiency, and keep the same security factor. One possibility is to increase current for the same device, needing to check how to draw away the heat. This is why the classical approximations need to be cross checked with complementary analysis. These new tools have to be rapid and accurate in order to run parametric and even optimization analysis. There is also a need for fast model in order to check robustness versus driving cycles. The goal in this article is to review rapidly the different methods available, depending on the accuracy required and the solving speed.
The method includes equivalent thermal circuits, Finite elements methods and CFD analysis.


A Unique Design Enables Bladeless Wind Turbines to Harness Energy
Vortex Bladeless engineers created prototypes of this innovative wind turbine a couple of years ago. To reduce development time and cost, they turned to finite-element analysis (FEA) and computational fluid dynamics (CFD) solutions to hone their designs and product development process. Computational modeling helps to confirm that an innovative design for a bladeless wind turbine will fly.

The Design Revolution Offered by Combining Additive Manufacturing with Simulation Driven Design
Topology optimization is a computer based calculation procedure which can design mechanically stressed component structures in such a way that the highest possible rigidity can be achieved with minimal material usage. Only those parts of a component which are essential for the required flux of force and necessary stability are generated. This results in complex structures which can only be built partially or not at all using conventional production processes. At this point the advantages of additive manufacturing come into focus.

Multi-Disciplinary, Integrated Systems Simulation from Requirements
Government solicitations for proposals, or RFPs, for aircraft and airborne systems require preliminary designs with enough fidelity to accurately predict performance, in order to prove the design's ability to meet the Governments performance requirements. Modern high-performance computing provides the leverage to execute previously expensive analyses in areas such as computational fluid dynamics. The results of these high order analyses can be used to populate parameters in 1D systems models which can be easily coupled to medium order models from other disciplines. These capabilities allow the design engineer to rapidly iterate to levels of model maturity and accuracy not achievable years ago, resulting in high levels of confidence in the designs performance predictions in unprecedented time.

Moving forward, Altair engineers will employ Multiphysics and co-simulation to execute the Engineering and Manufacturing Development phase (EMD) for one subsystem of the preliminary design developed in the afore mentioned pre-acquisition phase.

Collaboration between the Design Studio and Aerodynamics – the future
This presentation discusses Altair’s capabilities for analyzing and refining ideas during the concept stage of automotive design. The ultimate objective of all CAE is improved decision making and this is achieved by understanding the multiple behaviors of the widest variety of ideas as soon as possible in the design process. The presentation will illustrate how newly released Altair tools can be used to bridge the gap between Aerodynamics and the Design Studio to understand the performance of ideas as early as the sketch pad, using the skills and resources you already have in house. Altair’s vision for conceptual design in the future will be presented.

Cobot, the Collaborative Robot - Get Ready for Industry 4.0
Development tools and methods, such as simulation, are increasingly important to face and address the pressure of innovation. As an example, for successful new design methods and to show how simulation tools are used, Altair developed a virtual demonstrator based on a cobot application. This complex machine interacts with a human operator as the ultimate smart manufacturing equipment - to show how challenges in modern product design can be overcome.

Designing the Future of e-Mobility
Altair develops multiphysics simulation technologies that allows designers to
accelerate next generation mobility solutions development. From smart control
design, to powertrain electrification and vehicle architecture studies, our solutions
enable optimization throughout the development cycle.

Mando Softtech India Achieves Greater Simulation Accuracy with Altair HyperWorks®
As Manufacturers of Automotive Components such as Chassis and Brakes, Mando Softtech India has to ensure that they maintain highest performance and quality standards of the products they develop. Implementation of Altair HyperWorks solutions has helped them considerably reduce their product development time and costs, while augmenting product quality. Their overall development time was reduced by up to 30 to 40%.

Addressing Design Development Challenges Through Simulation Driven Platform
Automotive suppliers are facing many challenges in having in-house simulation capabilities compared to that of OEM’s. One of the ways to overcome these challenges is to invest in simulation technologies that require an affordable initial investment, the ownership cost of which is low, the codes are reliable & proven, and the suite of tools provide suppliers access to a broad range of solvers (a true multi-physics environment) helping them pick and choose the solvers as per their simulation requirements. In the early stage of in-house simulation implementation at Endurance Technologies, HyperWorks was being adopted primarily for pre and post processing due to its extraordinary FE modeling solutions. With constant support, Altair team has helped Endurance in exploring and implementing various HyperWorks solvers at Endurance Technologies.

Altair Aerospace: Design a Flap Mechanism with Multibody Dynamics
This short webinar will discuss coupling of aerodynamics loading, structures vibration, mechanisms deployment and hydraulics actuation in the simulation of a high lift device. This session also includes the simulation of structure loads and actuation efficiency during flight maneuvers. A fatigue analysis ensures the longevity of the new design.

Simulation Powers Development of Professional Power Tools
CAE is a core element in developing high-end, long-lasting professional power tools at DeWalt, a Stanley Black & Decker brand.

Altair NVH Solutions - Americas ATC 2015 Workshop
This Workshop Presentation on NVH was conducted by Jianmin Guan at the Americas ATC on May 5, 2015. This workshop introduced Altair full frequency and multi-physics solutions for solving the most pressing problems in the NVH field. It provided an overview of Altair’s solutions designed to facilitate the best in class NVH design process at automotive OEMs, coupled with real-time demonstrations of key product features. The focus of the workshop is on effective NVH problem resolution.


Multi-Disciplinary Evaluation Of Vehicle Platooning Scenarios
"This presentation discusses the multi-disciplinary evaluation of truck platooning, with the lead truck sending out acceleration, braking and steering signals for the following trucks to react accordingly. The benefits address safety requirements, fuel savings, traffic capacity and convenience.

The presentation demonstrates why platooning requires a holistic approach in the sense of connecting different modeling and simulation methods for a virtual evaluation of this system of systems. "

Investigating Aeroelastic Performance of Multi-MegaWatt Wind Turbine Rotors Using CFD
Recent trends in wind power technology are focusing on increasing power output through an increase in rotor diameter. As the rotor diameter
increases, aeroelastic effects become increasingly important in the design of an efficient blade. A detailed understanding of the fluid elastic
coupling can lead to improved designs; yielding more power, reduced maintenance, and ultimately leading to an overall reduction in the cost
of electricity. In this work, a high fidelity Computational Fluid Dynamics (CFD) methodology is presented for performing fully coupled Fluid-
Structure Interaction (FSI) simulations of wind turbine blades and rotors using a commercially available flow solver, AcuSolve. We demonstrate
the technique using a 13.2 MW blade design.

Altair HyperWorks Brochure
Altair HyperWorks is the most comprehensive, open architecture CAE simulation platform in the industry, offering the best technologies to design and optimize high performance, weight efficient and innovative products.

Defining Positioning System for Heavy Lift Barge with AcuSolve
Presentation by Pawel Sadowski, Technical Support Manager at DES ART.

Even during building roads your approach may be different from the standard one. The nature often forces engineers to use their creativity and go beyond typical projects. This leads to some unique, futuristic structures or some additional projects that have to be done and at the end are invisible. Our project of heavy lift barge contains in the second group. One part of this project was to proof that positioning system is sufficient to keep right position at the sea even during unfavorable weather conditions. For this purpose we perform numerous CFD analyses using AcuSolve. Computational cases differed in angle of flow, speed of flow and configuration of the barge. As a result of these all analyses defined working area of positioning system.

Hussmann India Achieves Greater Simulation Accuracy with Altair AcuSolve™
Hussmann provides tailored food safety solutions designed to improve food quality and integrity. As the manufacturer of refrigerated display cases and systems, they have to maintain the highest performance and quality standards of the products they develop. Using Altair solutions helped them reduce their product development time by 20 to 30% with the CFD Thermal solutions successfully addressing even the most complex problems in challenging areas that were faced in product design analysis and CFD.

Solving Real-Life Problems with CFD Parallel Performance of AcuSolve on Cray Systems


Simulation for cabin noise inside a car due to external turbulent flow using AcuSolve and OptiStruct
Dilip Mandal (USA), Babak Emami (USA), and Robert Snadboge (Sweden), Altair

We present a new simulation procedure for evaluation of automotive cabin noise caused by external turbulent flow. A methodology for coupled simulations of flow noise sources and structural vibrations has been developed within the AcuSolve and Optistruct solver framework of Altair.

Aerodynamic Development of a Road Cycling Helmet with AcuSolve - LX Sim
LX Sim uses HyperWorks Suite and select Partner Alliance programs from Altair to help build an aerodynamic cycling helmet.

DSHplus and AcuSolve - Fluid Power System Simulation Hand in Hand
This was a 2013 European ATC presentation given by Dr. Heiko Baum from FLUIDON Gesellschaft für Fluidtechnik mbH. Today the dynamic behavior of complex fluid power systems is typically simulated with 1D system simulation programs such as DSHplus. But, if accuracy requires modeling details at component level this technique comes to its limits. The representation of pressure losses of complex flow channel geometries, such as the bores in hydraulic manifold of heavy machinery or the customized pipe layouts in automotive applications or aerospace applications, cannot be achieved with a series connection of 1D system components.

Cooper Standard Speeds Development of Next-Generation Pumps with Altair’s AcuSolve CFD Solver
With more than 22,000 employees in
19 countries, Cooper Standard supplies the vehicle industry with fluid delivery systems, sealing and exterior systems, thermal and emission systems and AVS. The company’s Electromechanical Department is an advanced research and development arm of the Cooper Standard North America division. It’s goal is to marry mechanical systems with electronic controls. This new technology improves overall vehicle efficiency by providing on-demand fluid delivery and by eliminating the power loses inherent in conventional systems.
In designing new pumps for this type of system, CAE Engineer Tom Lincoln uses computational fluid dynamics (CFD) software to simulate the flow of coolant through the device. He and his team began using CFD computer-aided engineering tools as long ago as 2003, and computer simulations have become an essential part of his organization’s product development process.

AcuSolve Validation - NACA0012 Airfoil
This benchmark validates AcuSolve for external aerodynamic applications. NACA0012 has been studied in depth both numerically and experimentally. AcuSolve results are compared with other CFD software results and with available test data


AcuSolve & Radioss Solution on FSI Model
This benchmark demonstrates the ability of AcuSolve to capture the effect of impulse load on a profile submerged in channel flow. A P-FSI simulations is performed using the structural output from Radioss.


Nippon Sharyo Uses AcuSolve Simulation to Make Japan’s Bullet Trains Safer, More Comfortable


Intel AcuSolve Case Study: Analyzing Complex Designs Faster
Working in collaboration with Intel’s technical support team and utilizing key Intel® software development tools, Altair was able to improve performance, scalability, and time-to-results for AcuSolve, Altair’s leading CFD flow solver.

Smart Multiphysics Direct Coupling of AcuSolve & Radioss for Fluid-Structure Interaction


CFD Webinar Series Part 1 - Unstructured Meshing using Altair CFD Solver AcuSolve


Increasing Robustness and Reliability of a Race Car Engine with AcuSolve
This study is part of Prodrive’s implementation of AcuSolve to enhance its CFD capability after many years of outsourcing these simulations.

Applications of Acusolve and Optistruct in the High-Temperature Reformation of Biomass
Applications of Acusolve and Optistruct in the High-Temperature Reformation of Biomass presentation given by Tim Laska of sundrop fuels at ATCx Energy.

Introduction to AcuSolve
Altair® AcuSolve® is a leading general-purpose Computational Fluid Dynamics (CFD) solver that is capable of solving the most demanding industrial and scientific applications.

Based on the Finite Element method, AcuSolve’s robust and scalable solver technology empowers users by providing unparalleled accuracy on fully unstructured meshes. Applications ranging from steady RANS simulations to complex, transient, multiphysics simulations are handled with ease and accuracy.


AcuSolve Solver Setup in HyperMesh
Discrete or continous parameters can be defined and assigned to AcuSolve solver variables once the AcuSolve case is setup. The HyperStudy Job Launcher is used to transfer the relevant data to HyperStudy.

AcuSolve Tutorial Book
The AcuSolve installation now comes equipped with tutorials that provide detailed instructions for getting started (with a code) and working with some of the commonly used features.

Korea Meteorological Administration Implements Cost-saving Innovations for Electricity Usage with PBS Professional and AcuSolve
“PBS Professional has been a very reliable workload manager for our large, complex supercomputing systems… Cray and Altair are supercomputing leaders in the weather and climate modeling industry, and we are more than happy to have collaborated for this groundbreaking HPC simulation project.” - Ha-young Oh, Assistant Director of National Center for Meteorological Supercomputer

AcuSolve Overview
See an overview of the new features within AcuSolve for 14.0.

Advanced Features for External Automotive Aerodynamics Using AcuSolve
Watch this 45-minute webinar to learn more on the use of advanced features for solving “on road” external automotive aerodynamics with Altair’s CFD solver AcuSolve. The webinar will focus on the analysis of external aerodynamics for passenger and racing vehicles while performing turning maneuvers. AcuSolve’s mesh motion capabilities, along with real time cosimulation with Altair’s multi-body dynamics solver, MotionSolve give engineers the ability to better simulate actual road conditions.

Altair AcuSolve Datasheet
Altair AcuSolve is a most powerful Computational Fluid Dynamics (CFD) tool, providing users with a full range of physical models. Simulations involving flow, heat transfer, turbulence, and non-Newtonian materials are handled with ease by AcuSolve’s robust and scalable solver technology. These well validated physical models are delivered with unmatched accuracy on fully unstructured meshes. This means less time spent building meshes and more time spent exploring your designs.

HyperWorks 2017: CFD with AcuSolve
The 2017 release of the AcuSolve product suite brings major advancements in CFD modeling capabilities to HyperWorks users. The latest release of the software contains an expanded suite of physics, enabling the simulation of transitional turbulent flows, immiscible multiphase flows, and advanced moving mesh capabilities.

No more Gone with the Wind – Pedestrian Comfort Improvements on Quinta Torre with AcuSolve Computational Fluid Dynamics
Officially known as the Caleido project, the Fifth Tower in Madrid is owned by Inmobiliaria Espacio, a company that, among other services, deals with infrastructure and construction for all types of buildings.



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