Multiphysics coupling

QuickField is capable of multiphysics analysis, where different field problems should be simulated together and the results of one analysis are used as input data for other one. This second (“destination”) problem has to be defined on the same geometry model as the “source” problem, and may take into account the calculated field values or some derivative parameter distribution, as well as other manually defined loads and boundary conditions, usual for this type of field analysis.

You can combine several coupling types in one problem. E.g., after calculating currents distribution, electrostatic and magnetic fields as separate problems based on the same model file, you can calculate temperature distribution from Joule heat and then find stresses caused by temperature, magnetic and electric forces all together.
Currently the Multiphysics coupling in QuickField is supported for following types of 2D source and destination problems for specific types of imported data.

Source problem

---> |Transferred data|--->

Destination problem.

Destination Source	DC magnetics	AC magnetics	Transient magnetics	Static heat transfer	Transient heat transfer	Stress Analysis
DC magnetics	Magnetic permeability	Magnetic permeability	Initial magnetic field			Force
AC magnetics				Joule heat	Joule heat	Force
Transient magnetics			Initial magnetic field	Joule heat	Joule heat	Force
Electrostatics						Force
DC conduction				Joule heat	Joule heat
AC conduction				Joule heat	Joule heat	Force
Transient electric
Static heat transfer		Temperatures			Initial temperatures	Temperatures
Transient heat transfer		Temperatures			Initial temperatures	Temperatures
Stress Analysis

**DC Magnetics** to
Destination problem type	Imported value	Example
DC magnetics	Magnetic permeability	Loudspeaker voice coil inductance
AC magnetics	Magnetic permeability	Saturable reactor
Transient magnetics	Initial magnetic field	Biased relay force
Stress Analysis	Force	Stress distribution in a long solenoid Solenoid under current load TOKAMAK solenoid mechanical stress

**AC Magnetics** to
Destination problem type	Imported value	Example
Static heat transfer	Joule heat	High voltage cable ampacity
Transient heat transfer	Joule heat	Copper inductor with a steel tube Inductively heated ceramic
Stress Analysis	Force	High frequency line trap

**Transient Magnetics** to
Destination problem type	Imported value	Example
Transient magnetics	Initial magnetic field	Coil with triangle wave current
Static heat transfer	Joule heat	Double wound solenoid
Transient heat transfer	Joule heat	Coil pulsed heating
Stress Analysis	Force	Inductor inrush current stress

**Electrostatics** to
Destination problem type	Imported value	Example
Stress Analysis	Force	Comb drive resonator

**DC conduction** to
Destination problem type	Imported value	Example
Static heat transfer	Joule heat	Temperature distribution in an electric wire Temperature distribution in the conducting sheet
Transient heat transfer	Joule heat	Cylindrical fuse

**AC conduction** to
Destination problem type	Imported value	Example
Static heat transfer	Joule heat	Disc insulator heating
Transient heat transfer	Joule heat
Stress Analysis	Force

**Heat transfer** to
Destination problem type	Imported value	Example
AC magnetics	Temperatures	AC Magnetic and Heat Transfer Double Coupling iterator
Transient heat transfer	Initial temperatures	Heating and cooling of a slot of an electric machine
Stress Analysis	Temperatures	Pipe subject to temperature and pressure

See more examples of Multiphysic problems

Video: Multiphysic analysis with QuickField