Working group "Quasistatic Modelling and Optimisation (QuasiModO)
These methods are typically used to simulate electric devices such as transformers or superconductive magnets. The impact of low-frequent electromagnetic fields on the human body is also subject of investigation.
For spatial discretisation the finite-integration technique and finite-element method are used. The discretisation in time is done by classical theta-functions as well as by using higher order integration methods such as Runge-Kutta schemes. For the calculation of motional eddy current effects different meshes are coupled through appropriate interface conditions.
An active area of research is devoted to hybride discretisation techniques using different discretisation methods for different model parts. This provides additional flexibility in constructing computational models but necessitates the use of specialised and possibly more expensive numerical techniques.
Individual research projects:
- Time-domain methods
- Frequency-domain methods
- Introduction of nonlinear and hysteretic material models into time-domain methods
- Finite-integration technique for low-frequent electromagnetic field calculation
- Finite-element methods for quasistatic formulations
- Domain-decomposition methods
- Simulation of motional eddy currents
- Field-circuit coupling considering switches in the network
- Simulation of energy converters (machines, superconductive magnets, eddy current brakes)
- Simulations of electromagnetic fields in high-resolution anatomical models of the human body