Quench

Simulation of a superconducing quench models the physical process of a superconducting coil becoming resistive. Once initiated, the quench process will propagate, as the quenched volume becomes resistive and produces ohmic Joule heating.

Multi-physics simulation coupling thermal, electromagnetic and circuit domains is used to determine the temperature rise, the changing properties of the coil as it becomes resistive and the magnetic field. Coil and protection circuit currents and voltages are also calculated.

Non-linear behaviour of materials is included either using functional properties or functional tables. Critical current density as a function of flux density and temperature is also modelled via tables or functions.  Rate dependent losses may also be added to the heat input.

Features include:

1. Full 3D modelling
2. Automatic Mesh Generation from simple coil definitions
3. Non linear materials including functional properties using tables
4. Interfaces to CAD/CAM
5. Display of temperature, losses and currents during the quench
6. Inclusion of protection circuits with non linear components
7. External coupling to Elektra dynamic simulation to include eddy currents in the support structure