Multiphysics modeling with open source software
University of Latvia

November, 2018

Transformer - Elmer FEM

Authors: Juris Vencels, Valters Dzelme

In this project, a simple transformer with discrete windings is modelled. Simulation setup is similar to an induction heating problem - the primary coil carries driving current and induces magnetic field inside a ferromagnetic core. Magnetic field is contained within the core and is directed through the second coil, wherein secondary currents are induced.

This project is part of the EOF-Library training course. EOF-Library is efficient, fully parallelized Elmer FEM and OpenFOAM coupler designed for coupled electromagnetic, fluid and heat transfer simulations.


Given

Problem definition

Frequency

50 Hz

Coil properties

Copper

Core properties

Transformer steel (for basic tasks, use constant permeability)

Conductivity of core

0 S/m

Primary coil

Potential difference 1 V

Secondary coil

Short-circuited, potentials on outputs 0 V

Tasks

Basic

Advanced

Hints

grep -r -i -n "WhitneyAVHarmonicSolver" fem/tests/

Useful links

Elmer