Altair Flux™

Electromagnetic, Electric, and Thermal Analysis

What is Altair Flux?

Flux captures the complexity of electromechanical equipment to optimize their performance, efficiency, dimensions, cost or weight with precision, bringing better innovation and value products to end users. Flux simulates magneto static, steady-state and transient conditions, along with electrical and thermal properties.

For over 35 years, Flux simulation software has been the reference worldwide within leading industries. With its continuously improving technology, Flux has become a versatile, efficient and user-friendly tool that helps designers to generate optimized and high-performance products, in less time and with fewer prototypes.

With strong coupling to the Altair HyperWorks™ multiphysics optimization platform, Flux evaluates subsystems’ dynamic interactions and streamlines the entire design process.

Flux Overview Video

Why Flux?


Use different options and tools in the Flux open environment – scripting, macros, multiparametrics. Fine tune models and solvers, capture and automate simulation processes efficiently.

Proven Accuracy

Flux has a long history of closely replicating measurements, reproducing complex phenomena with high accuracy, by quickly generating reliable results that engineers trust.

Multiphysics Capabilities

Design efficient, silent and robust machines via the seamless connections to the global creative environment Altair HyperWorks™ platform to perform multiphysics optimizations.

Key Features

Efficient Geometry Description and Meshing

Accelerate pre-processing using Flux tool kit: sketcher / modeler, defeaturing functions, dedicated e-Motor environment, smart auto-adaptive mesh and focus on exploring 2D/skew/3D innovative designs.

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Advanced Physical Properties

Embedded physical models for magnetic, electric and thermal; static, steady-state AC and transient analysis; complex electrical circuit editor and rigid body motion for real-life predictions.

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Powerful Modeling Techniques

Unequaled modeling solutions for fast and accurate analysis: non-meshed coils, non-linear anisotropic material behavior, hysteresis, skin and proximity loss in windings for accurate analysis.

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Fast and Robust Solvers

Explore new layouts with Flux embedded multi-parametric capabilities, supported by multiple linear and non-linear robust solvers, accelerated further by efficient optimization methods and HPC.

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Convincing Results

Complete and versatile postprocessor enables analysis, reporting and export of results from multi-parametric solving: potential, flux density, temperature, electric and magnetic fields, mechanical quantities, etc.

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Seamless Multiphysics Optimization

Connecting physics in a single multiphysics optimization loop, sharing models, design variables and mesh, automating the process gives the best view of complex phenomena fast.

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Altair Flux Workflow

  1. Getting Started with Flux Supervisor
  2. User Environment and Workflow
  3. Actuator Design and Analysis
  4. e-Motor Design and Analysis