2f30c1364b
Added optional pressure reference pRef to p_rgh in buoyantPimpleFoam, buoyantSimpleFoam and chtMultiRegionFoam which handles cases in which the pressure variation is small compared to the pressure level more accurately. The pRef value is provided in the optional constant/pRef file. All tutorials and templates have been updated to use pRef as appropriate.
Example of an explicit coupling between OpenFOAM and an external application using the externalCoupled boundary conditions. The case is based on the buoyantCavity tutorial case, whereby on each iteration the 'hot' and 'cold' patch temperatures are incremented by 1K.