Welcome
User guide
The user guide gives information about principles and how to use Altair® Flux® 2025.
What's New
See the release notes of the last and previous versions, with the necessary information on new features.
"How to" Documents
See a list of documents to understand how to use certain features.
Altair Flux Videos
Several youtube videos about how to use Altair Flux and several tip and tricks
Flux Supervisor
The Flux supervisor allows to run projects, examples, pythons scripts; to configure user preferences; to access tools...
Flux
Flux is a finite element software for low-frequency electromagnetic and thermal simulations. Both, 2D and 3D solutions are available...
Flux Skew
Flux Skew is a module dedicated to the analysis of rotating electric machines with skewing, allowing a straightforward geometric and physical description in 2D and the consideration of continuous or step skewing effects.
Flux PEEC
Flux PEEC is a 3D modeling module dedicated to electrical interconnections of power electronics devices. It also provides RLC extraction and generation of SPICE-like equivalent circuits.
Material Identification
The Material Identification tool is based on the Altair Compose environment and allows determining from measurements the parameters and coefficients required to create a material in Flux.
Altair Material Datacenter (AMDC)
AMDC is a comprehensive material database maintained by Altair and partner suppliers of engineering materials. Ready-to-use, Flux-compatible models may be obtained directly from this database for a growing number of materials.
Material Manager
Flux has a material manager with its own material base.The user can create his own material base and import them into the Flux models to be studied.
Flux e-Machine Toolbox
FeMt is a application in Flux dedicated for Electric Machine which permits to compute and postprocess results like efficiency maps.
Flux Examples
See the lists of examples 2D, 3D, SKEW and PEEC with all available documents and all project and python files.
Flux in SimLab Examples
See the lists of 2D and 3D SimLab examples using the Flux and Mipse solvers, with all available documents, *.slb databases and all script files.
Mementos
See a list of Memento documents to understand certain Flux features.
Macros
Flux proposes several macros enabling doing actions that are not yet implemented in Flux.
PyFlux Documentation (Beta version)
This documentation deals with the Jython script used in Flux and allows to understand the various structures of entities and functions, and use it in user scripts for example.
Flux installation guide
This document provides instructions for Flux installation on supported platforms.
Flux Starting Guide
Several short videos to start with Flux.

SimLab Tutorial Summary: MT2D Synchronous reluctance motor (SynRM)

Description

The studied device, a synchronous reluctance motor, is running in motor mode. As presented in the figure below, it includes the following elements:

a fixed part (stator) including yoke, slots, and windings
an air gap
a movable part (rotor) with flux barriers

Basic EM analysis:

The coil regions are shown in the figure below, and it is coupled with a circuit defined by the [Circuit Designer]:

After solving the scenario, SimLab can provide some basic post-processing for the eMotor analysis, including the isovalue visualization and the physical quantity plotting.

Example access

All files corresponding to this example are accessible in the following link: Tutorial package.

Note: The tutorial packaging may evolve with each new version, but not mandatory. The latest version of the tutorial package will automatically work with the most recent release of SimLab.

Example: After installing the SimLab 2025 release, you can find the latest Tuto_2024.zip package. This means that the tutorial has not been updated since 2024 release, that the tutorial does not need to be updated, and that the tutorial still works in 2024.1 release and 2025 release.

Step to follow:

to follow the example step by step, the corresponding files are in "Example_name_StepByStep" folder containing:
- Input folder: contains initial *.slb databases an other files needed to be able to play manually the tutorial by following the step by step document
- Output folder: empty (contains the obtained results after to play the tutorial)
- Tutorial folder: contains the document describing the example step by step
to play the tutorial by scripts, the corresponding files are in "Example_name_PlayScripts" folder containing:
- Input folder: contains initial *.slb databases an other files needed to be able to run scripts of the tutorial
- Output folder: empty (contains the obtained results after to play scripts of the tutorial)
- ScriptsTutorial folder: contains script files to be able to play each analysis