Altair AcuSolve™

General Purpose Fluids and Thermal Simulation

Guide to Electronic System Development

Manufacturers today are tasked with designing smart, connected products at a breakneck pace to stay ahead of the competition. As performance demands continually increase, packaging sizes become smaller, and device connectivity becomes more critical, schematic engineers and product designers need ways to make efficient design decisions and collaborate with one another to optimize complex interconnected mechanical and electromagnetic systems. To develop the next generation of smart products, organizations are turning simulation to improve device performance and drive profitability.


Guide to Process Manufacturing

Any industry that produces bulk quantities of goods such as pharmaceuticals, food, chemicals, or cosmetics, is seeking to produce these products consistently while reducing cost factors like waste and down time. Due to the nature of process manufacturing, multiple ingredients are combined to be mixed, coated, or sorted, so understanding the behavior of these processes is of paramount importance for manufacturers. Through the use of simulation modeling and Smart Manufacturing principals, manufacturers are now able to optimize these processes, leading to greater productivity and profitability.


The Role of Simulation in Medical Device Innovation

Dr Venkat Perumal, Senior Principle Engineer at Stryker Global Technology Center discusses the adoption of simulation in Medical Device industry and how it helps shorten the overall product development cycle time & cost. While adoption of simulation has the ability to reduce and time, physics-based models need rigorous verification, validation and uncertainty quantification. This talk will include examples, where physics-based simulation results lent insight of the product performance, materials modeling and structure-properties correlation. The role of industry-academia-private & public partnership in driving the change from 100% ‘make & break’ to ‘simulation driven product development’ including regulatory submission will be discussed. The video is 12 minutes long and was presented at the Altair Technology Conference 2020.

ATC Presentations

Solutions to Maximize Electric Motors Cooling and Maintain High Performance

Modern e-motors in the automotive industry require advanced lubrication and (spray) cooling mechanisms to maintain peak performance and ensure reliability. nanoFluidX and its SPH method handle such simulations with ease. Because of its multiphase capability, nanoFluidX captures critical windage effects and provides more accurate results.

Use Cases

ATCx CFD 2020 - Welcome & Introduction to Altair and the CFD Solutions

A welcome address to Altair's ATCx CFD virtual event hosted in 2020, presented by Andy Fine, VP CFD Solutions EMEA at Altair.


ATCx CFD 2020 - Fast and Accurate Solutions to Optimize CFD Performance

Presented at the ATCx CFD 2020, Fast and Accurate Solutions to Optimize CFD Performance by Stephen Cosgrove, VP CFD Solutions Americas at Altair.


ATCx CFD 2020 - A New & Revolutionary Way to Collect Energy from Wind

Presented at the ATCx CFD 2020. A New & Revolutionary Way to Collect Energy from Wind by David Yáñez, Co-Founder of Vortex Bladeless.


ATCx CFD 2020 - Workshop 3: General Purpose CFD

Workshop 3: General Purpose CFD presented live at the ATCx CFD 2020 virtual event.


ATCx CFD 2020 - Q&A with Torbjörn Larsson, Former Head of CFD for Ferrari F1

Recorded at the ATCx CFD 2020 virtual event, this is a Q&A with Torbjörn Larsson, Former Head of CFD for Ferrari F1. With previous roles at BMW F1, General Motors and Saab Military Aircraft, Torbjörn has 30 years of industrial experience in fluid mechanics and CFD. Listen to the questions our audience posed to Torbjörn in this 30 minute session.


Faster Fluids and Thermal Exploration

Learn how Altair’s flexible and efficient CFD solvers pave the way for simulation-based design in the field of Computational Fluid Dynamics.


Altair SimLab Real World Multiphysics Solutions

More and more engineers need to solve problems that can span multiple physics including structural, thermal, electromagnetics, and fluid dynamics.


Granular Materials Simulation for Process and Equipment Design

The world is full of bulk and granular materials. From ores being mined, soil being excavated, rocks being conveyed, or powders being processed - over 70% of all industrial processes involve the handling or processing of these challenging materials.


Run Faster, Make Friends and Embrace the Power - HyperWorks Unlimited HPC Appliances

If you want to supercharge your throughput, spend your days making radical improvements and work confidently from an easy-to-use browser - have we got a show for you! Begin the journey to lead your people to triumph and glory as you learn about the joys of unlimited software, supercomputing hardware and a SysAdmin waiting to fulfill your every desire with HyperWorks Unlimited HPC Appliances.


Achieve Battery Thermal Management System Requirements using Altair CFD Solutions

The operating temperature of Li-ion batteries used in modern electric vehicles should be maintained within an allowable range to avoid thermal runaway and degradation. Poor thermal management affects the charging and discharging power, cycle life, cell balancing, capacity and fast charging capability of the battery pack. Hence, a thermal management system is needed in order to enhance the performance and to extend the life cycle of the battery pack. Altair’s comprehensive CFD solutions provides the complete thermal management using both 3D and 1D frameworks using Altair’s AcuSolve and GE FlowSimulator respectively. Detailed analysis of active and passive cooling methods and, the effective combination of both is in focus. The study and optimization of cooling module design strategy such as coolant type, direct contact or jacket cooling, serial or parallel cooling , module shape or dimensions, coolant flow rate combined with cell characteristics and driving cycles, etc are the key areas of work. The BTMS is of utmost importance to EV/HEV. The webinar focuses on the overview of Altair’s thermal solutions and how the software AcuSolve and FlowSimulator plays a very important role in providing all-round BTMS solution.


CFD Modeling and Visualization with HyperWorks CFD

Computational Fluid Dynamics (CFD) has long been regarded as an "expert" tool that requires specialized skill sets to apply properly.


Altair for Fluids and Thermal Applications

From detailed component analysis to full systems performance, Altair provides a range of scalable solvers and robust pre- and post-processing software for CFD.


Altair for Multiphysics Applications

Altair provides an industry-leading portfolio of multiphysics-enabled software to simulate a wide range of interacting physical models including fluid-structure interaction (FSI), flexible bodies, aeroacoustics, and thermomechanical simulation.


Training- Improve CFD Pre-Processing Using HyperMesh : SimLab

This is an introductory course for using HyperMesh CFD to create and set up finite element (CFD) models for CFD analysis. A combination of lectures and exercises will familiarize students with the HyperMesh environment, process, and suite of tools needed to start using HyperMesh in their work.


Attaining Nonlinear and Multiphysics Mastery for SMBs with SimLab and OptiStruct

A growing number of companies aspire to perform multiphysics, but each added analysis tool introduces new complexity to a development process. Model translation, remeshing, design modification – these tasks offer no added value and increase the likelihood of error. Altair SimLab enables users to model and solve multiple physics, including nonlinear analysis, within one unified platform. Each analysis runs from one master model, allowing you to spend less time prepping and more time solving. Join the webinar to see these powerful workflows in action. In this webinar, we will demo the design of a smart speaker with an emphasis on nonlinear analysis, multiphysics, and improving perceived sound with vibro-acoustic simulation.


InnAccel Leverages Altair AcuSolve for Developing Oral Hygiene Management System

A . Vijayrajan Founder and Chief Technical Officer, InnAccel talks of how simulation brings design differentiation in the medical device industry. His team speaks of the use of Altair AcuSolve solution for determining the pressure drop in the manifold of a medical device design used for oral hygiene in ICUs.

Customer Testimonials

InnAccel Leverages Altair MotionSolve to Evaluate Nasal Body Removal Mechanism

A . Vijayrajan Founder and Chief Technical Officer, InnAccel talks of how simulation brings design differentiation in the medical device industry. His team speaks of the use of Altair MotionSolve solution for designing a medical device mechanism for removal of nasal foreign body in children.

Customer Testimonials

Virtual Design and Testing of a Medical Autoinjector, Project Overview

Sweden-based Nolato, a global provider of injection molded parts for numerous industrial and medical applications has developed Nolava as a collaborative project with companies including Altair and Avalon Innovation. Nolava is Nolato’s medical self-injector, a complex electro-mechanical device housed in an injection molded fiber-reinforced plastic body. Within this presentation different aspects of the product design cycle are considered, including co-simulations of the device operation during the actual injection process, misuse in case of forceful bending or opening of the loading tray, and drop tests of the autoinjector. Based on Altair’s optimization technology, alternatives for the rib structure of the casing are investigated. To assure manufacturability, molding and assembly simulations are performed to identify and mitigate problems likely to occur throughout the process.

Customer Stories, Videos

Optimize Execution Quality using Cloud Data, Python and Streaming Analytics

This webinar will consider new approaches to the old problems of optimized execution, the role of new technologies including artificial intelligence (AI) in improvement, and how to implement and integrate tools and technologies to build an efficient and cost-effective technology stack.


Webinar: GPU accelerated Aerodynamics CFD using Altair ultraFluidX

Most traditional simulations take too long to complete and takes significant toll on the vehicle manufacturer’s capability to arrive at an optimal design that considers styling and aerodynamic performance. In this webinar, we introduce you to Altair’s ultraFluidX, a GPU based Lattice Boltzmann solver that delivers unbeatable performance and overnight transient simulations of full vehicle aerodynamics on a single server. We will discuss the challenges in executing a full vehicle transient simulation and demonstrate how ultraFluidX technology and workflow helps you to overcome many of these with tremendous ease. We will also discuss some of the unique features that helps you perform multiple design analysis cycles with an unprecedented level of automation.


Altair HyperWorks - CFD Workflow

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


Battery & Motor Thermal Management for Electric Vehicles

The key element of an electric vehicle (EV) is the battery and batteries are known to produce heat during their charge-discharge cycle. An efficient thermal management system (TMS) is of paramount importance. The battery TMS affects the cost, life, and range of the EV. A battery TMS study or an EV TMS study involves the use of thermal and fluid physics and Altair’s AcuSolve (Computational Fluid Dynamics based Simulation Technology), was used to carry out this study. The importance of finding new methods for effectively and accurately designing TMS that control temperature and optimize the performance of Li-ion batteries. This can be used to study and optimize the Battery Thermal Management System and other Thermal Management requirements arising in an electric vehicle which involves both active and passive cooling. A similar issue of heat (unwanted) exists in Motors as well, in this, we shall cover the Multiphysics simulation of Motors which shall include both electromagnetics and CFD Thermal studies of both air and liquid coolant motors.


NVH Refinement for Electric Vehicles

Replacement of traditional combustion engines with an electric powertrain, bring electro-mechanical induced tonal and high-frequency whine noise. In addition, tire and aerodynamic turbulent noise become more prominent in the absence of a standard Internal Combustion Engine. Also, the perceived sound quality imposes a new set of challenges. This leads to completely new methods of NVH refinement, keeping the decades of research aside. As it is important to address these issues at the design and development stage, adopting the new simulation techniques to manage future NVH challenges in e-Mobility is of the prime challenge to the traditional NVH engineers. In this webinar, we shall discuss some of those key NVH challenges specific to electric vehicles and appropriate simulation processes to develop countermeasures.


System Modelling for Electric Vehicles

Electric Vehicles (EV) are complex systems and need to be connected, automated, lighter & smarter all at once. This calls for systems engineering where different systems are seen whole instead of in silos. Experience e-Mobility Simulation using Altair Model-Based System simulation solutions with real-time motor controller implementation on HIL (Hardware in the loop) with the micro-controller. Its intuitive block diagram environment allows users to model and simulate continuous and discrete dynamical systems, mix signal-based, physical modeling and Co-simulation with electro-magnetic & multi-body dynamics. End to end system-level virtual simulation for complete e-Mobility is made possible.


System Simulation for HVAC

Presenter: Christian Kehrer, Altair [on behalf of Oliver Höfert, Simulation Engineer at Kampmann]

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.

ATC Presentations, Videos

Integrated Systems Simulation from Requirements

Ed Wettlaufer, Technical Manager Mechatronics Group, Altair [on behalf of NAVAIR]

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.

ATC Presentations, Videos

Altair AcuSolve New Feature Overview

View a high level overview of the new features available within AcuSolve 2019.

New Features

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.


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.

ATC Presentations

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.

Technical Papers

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.

ATC Presentations, Videos

Innovative Service Bureau Combines Simulation-Driven Design and 3D Printing

A company specializing in 3D printing relies on simulation to make tools for injection molding that are less expensive, lighter and better than those created with traditional methods.


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.

Customer Stories

DSA uses HyperWorks to Streamline its Marine Hydrodynamics Analysis with ProteusDS and ShipMo3D

APA Partner, DSA, uses Altair HyperMesh, AcuSolve, and Virtual Wind Tunnel to create high-quality hydrodynamic mesh and models for ship and marine structures.

Customer Stories

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.


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.

Technical Papers

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.

Technical Papers

A Modular Simulation Process and Data Management Solution Using HyperWorks, ModelCenter and SimData Manager

Engineering design has greatly evolved with the advent of simulation tools and computing power. Simulation software such as Altair HyperWorks suite have enabled virtual design greatly reducing or even replacing physical testings. Process integration tools like ModelCenter from Phoenix Integration have enabled the engineer to automate the execution of the simulation tools and explore complete design spaces instead of searching for the first feasible solution. The large amounts of data that are now being generated can be managed using solutions like SimData Manager from PDTec. This webinar focuses on a prototype integration between these three products. The tools are brought together to enable automated execution of complex simulation processes involving structural analysis and CFD using Altair OptiStruct and AcuSolve solvers with built-in data management and traceability.


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.


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.


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.

Customer Stories

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.

Customer Stories

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.


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.

Customer Stories