More flexible conjugate heat transfer #1166
Description
Reason
We currently support two forms of conjugate heat transfer coupling of NekRS and MOOSE:
- MOOSE send heat flux to NekRS, NekRS sends wall temperature back
- MOOSE sends conductive heat flux to NekRS, NekRS send convective heat flux back
We can add a third option, the inverse of the first: MOOSE sends wall temperature to NekRS, NekRS sends heat flux back.
Design
Allow NekFieldVariable to send temperature into a usrwrk slot.
Impact
New feature.