IEMDC 2025 Tutorial 8

This repository contains two example implementations of electric motors using the open source Finite Element library Nutils for the hands-on part of IEMDC 2025 Tutorial 8: Design, Modelling and Mathematical Formulations of PM-Free Special Machines: from Theory to Practice.

The two examples are provided in the form of a Jupyter Notebook. The first example, exercise1.ipynb, is a simplified reluctance motor, used to explain all concepts of modeling electric moters using Nutils. The second example, exercise2.ipynb, contains a model of a realistic variable flux reluctance machine in space-time.

To participate either

• visit https://iemdc.evalf.com or
• follow the instructions below to download this repository, install Python, Nutils and other dependencies and launch Jupyter Notebook on your own computer.

Download the contents of this repository

Download and unzip this archive somewhere (we refer to this location as the checkout dir below). If you have git you can also make a checkout of this repository.

Installing dependencies

Make sure you have Python. Open a terminal and go to the checkout dir, the directory where the tutorial files are located. Install Pipenv by running

python3 -m pip install --user pipenv

Then run (this might take a while)

python3 -m pipenv sync

Starting Jupyter Notebook server

Start a Jupyter Notebook server using

python3 -m pipenv run python3 -m notebook

from the checkout dir.