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Community Champion of the Month - August, 2025
The Community Team would like to introduce the August Champion of the Month, Dr. R. B. B. Ovando. Dr. Ovando is a researcher and engineer working at the intersection of electromagnetism, heat transfer, fluid dynamics, materials (stress, mechanical and physical metallurgy), and numerical simulation. His work combines finite…
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Definition of rotor position deg in FMU blocks
Hello, I have exported an FMU block from Flux Motor with rotor angle dependency set. Then when inserting the FMU block into my simulation software I have for example 3 inputs Jd_A_, Jq_A_, and Rotor_position_deg_ This is a common input for a variety of parameters like Torque, QFlux, DDynInductance, etc… The outputs values…
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Submicron/Nanoscale electrostatic simulations using Altair Flux
I am unable to get the geometry modeler to work appropriately trying to create volumes smaller than 1 micron. I am attempting to model the electrostatic interactions between the probe and sample in electrostatic force microscopy.
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Flux3D: How to impose a position dependent electrical resistivity on a thin conducting region
Hello, I have a Flux3D model - steady state AC (v 2025). In a thin conducting region I would like to impose an electrical resistivity that varies in the plane, point to point. I see I can define a spatial quantity on the nodes of that face region. But I have no idea how to tell Flux that I want that quantity to be the…
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Flux2D: Coupled Magnetic-Thermal Simulation with Moving Geometry
Hello. I’m working on a project in Flux2D 2023.1 which involves an induction heater that heats a moving laminated core as shon in the picture below. The application is Steady-State AC Magnetic field coupled with a Transient Thermal analysis with a 2D axisymmetric domain. I want the laminated core to move downward over time…
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PSIMとHyperStudyによるeDrive効率マップの高速生成
このセッションでは、Altair PSIMとAltair Fluxのシームレスな連携を活かし、インバータレベルおよびシステムレベルでの効率マップ作成プロセスを、エンドツーエンドでご紹介します。さらに、すべての動作ポイントを確実に網羅するための戦略やヒントも解説します。 PSIMは、パワーエレクトロニクス分野においてその高速性と堅牢性で知られており、複数のe-Drive動作ポイントを定常状態までシミュレーションする際に非常に有効です。しかし、私たちはそれだけでは終わりません。さらに強力なツールも活用可能です。 設計空間探索と最適化ツールであるAltair…
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Is it possible to incorporate the impact of endwinding in 2D Flux thermal study?
I am performing a 2D radial-plane thermal simulation of an electric machine. Normally, the effect of the end-windings is neglected in this study, as it is not modeled. Is there any way to include or approximate the impact of the end-windings in such a model? Is there any way to add a thermal circuit to model it? For…
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FluxMotor Student Edition Freezes at Splash Screen (Flux Works Perfectly)
Hello Altair Community, I'm hoping for some help with a launch issue for the Student Edition of FluxMotor 2025.1. When I run FluxMotor, the splash screen appears and stays there. The process is running in the Task Manager with very low CPU/Memory usage, but the main application window never opens. I have to use the Task…
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How to calculate leakage inductance in Flux for a transformer design?
I have designed a transformer model in Altair Flux and I would like to calculate its leakage inductance. If possible, could you suggest any example/tutorial that demonstrates this workflow?Which exact mode in Flux should I use for this calculation? (2D or 3d)
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How to Map Heat Losses from Flux Solution to Flow Solution in SimLab?
Electrical appliances and devices generate heat losses known as joule losses which significantly influences the thermal behavior of a device or system. Ignoring this coupling can lead to inaccurate predictions, poor design decisions, and potential failures. Multiphysics modeling especially coupling electromagnetic and…
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Using Physics AI to Optimize Interior PMSM Geometry
In this video, explore how Altair’s PhysicsAI is used to accelerate and optimize the design of Interior Permanent Magnet Synchronous Machines (IPMSMs). Learn how AI-powered simulation can intelligently predict performance metrics and guide geometry changes for maximum torque, efficiency, and reduced development time. ✅…
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Hello Every one
Hi, all friends. I have a question about getting cogging torque. I did both 2D and 3D for the same motor. However, I get different results. from 2D and 3D, about 0.17 in degrees? How to solve this problem? Thanks in advance. I have followed the steps of YouTube.
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Optimizing Battery Performance in Formula Student EVs
Designing a battery pack for a Formula Student vehicle involves carefully selecting the appropriate battery cells based on the vehicle’s performance requirements. A key challenge in this process is accurately determining the vehicle’s energy needs, the maximum voltage selection and all the consequences of this choice on…
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Simlab - E-motor - Selected bodies are not in xy plane
Hello, I've sketch a motor and mesh with motor mesh tool. When I want to update the solution with my mesh, I've this error : "Selected bodies are not in XY plane". I've check and all is in the same plane. I've also tried to move node and project on one plane to be sure but it doesn't change anything. Does somebody knows…
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Export flux results to flux for convergence study
I have Flux 2022.3. I would like to run a convergence study on the 2D FEM results by comparing between simulations with different average element sizes, in order to estimate the error. I want to compute the L2 Norm between solutions so something like \sqrt( \int_{domain} (An1-An2)^2 dxdy ), where An1 and An2 are two…
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Hello, When I open a project in Altair Flux 2024.1, I receive the following error message:
Flux2D: The application was not able to start. C:\Program Files\Altair\2024.1\flux\Flux\Bin\dll\win64\flux_project.dll: Can't find dependent libraries. My system details are: Windows 10/11 64-bit Intel Core i5 processor The software was installed in the default directory. Could you please help me resolve this issue? Thank…
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How to model the skewed rotor in Altair Flux 3D
Team, Please help me to generate the model considering the skewed rotor in Altair FLUX 3D S/W.
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Faster-than-Real-Time EV Drive Cycle Simulations with PSIM-trained Fit Models | Part2
Introduction We will simulate the WLTP Class 3b drive cycle of 1,800sec in just 25sec of simulation time, which is x72 times faster than real time. Let's see how! The first part of this workflow is already covered here: Faster-than-Real-Time EV Drive Cycle Simulations with PSIM-trained Fit Models | Part1 The second part…
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Faster-than-Real-Time EV Drive Cycle Simulations with PSIM-trained Fit Models | Part1
IntroductionWe will simulate the WLTP Class 3b drive cycle of 1,800sec in just 25sec of simulation time, which is x72 times faster than real time. Let's see how! Working with drive cycle simulation can be challenging—especially when attempting to include all the details of an electric powertrain. The main issue arises from…
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Post Processing Scripting [Flux 2D]
I am simulating a three-phase transformer made with interleaved foil windings in Flux 2D, using the transient magnetic solver. I would like to estimate the ac to dc joule losses in each conductor by calculating the time average joule losses in the conductor regions. There are many conductor regions in my transformer so I…
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FEA of FAULTS in a PERMANENT MAGNET SYNCHRONOUS MACHINE - Research Report
FINITE ELEMENT ANALYSIS of FAULTS in a PERMANENT MAGNET SYNCHRONOUS MACHINE with Altair Flux Author: Virgiliu FIRETEANU Please find the report as a pdf attached. This research report contains results of the investigation of a Permanent Magnet Synchronous (PMS) machine through Finite Element models. The Flux2D software from…
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FEA of a Set of Four Electric Machines with Same Stator Armature - Paper
Finite Element Analysis of a Set of Four Electric Machines with the Same Stator Armature and Main Size of the Rotor Magnetic Core using Altair Flux Author: Virgiliu FIRETEANU, EPM-NM Laboratory, Electrical Engineering Faculty POLITEHNICA University of Bucharest Please find the paper as a pdf attached. Abstract—Performances…
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End winding inductance: analytical equation
Hi, I'm going to work on a parametric model in Flux 2D, and I need to model the end winding inductance. Is it possible to access the equation used in FluxMotor to calculate the end winding inductance? Alternatively, does anyone know an analytical expression to estimate the end winding inductance for lap (embricated) and…
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Inquiry Regarding Edge Saturation in 3D Axial Flux Motor Example
Dear Support Team, I recently reviewed the 3D “Axial flux motor” example provided in the Altair Flux v.2025 to familiarize myself with the steps of 3D simulation. As a follow-up exercise, I created a custom 3D axial flux model with a different number of slots, poles, and winding configuration. The output waveforms aligned…
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FLUX & HYPERSTUDY coupling 관련 질문
Description: Kindly add description here Product/Topic Name : Kindly include the product name, version if applicable here. Also, Don't forget to tag with the product/topic related to your question. *Note from Community Team - Once you receive a satisfactory answer on your question, kindly mark your answers as "Accepted" so…
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Flux3D coil conductor definition problem.
Hello everyone, I'm encountering an error when trying to use the "Orient wires of coil conductor regions" feature in Flux3D 2025.0 The error log shows the following: WIRE1 : On each volume of this region, the number of points on the input faces must be equal to the number of points of the output faces and to the number of…
