Following the generalisation of the TurbulenceModels library to support non-Newtonian laminar flow including visco-elasticity and extensible to other form of non-Newtonian behaviour the name TurbulenceModels is misleading and does not properly represent how general the OpenFOAM solvers now are. The TurbulenceModels now provides an interface to momentum transport modelling in general and the plan is to rename it MomentumTransportModels and in preparation for this the turbulenceProperties dictionary has been renamed momentumTransport to properly reflect its new more general purpose. The old turbulenceProperties name is supported for backward-compatibility.
PDR test case Step to introduce the PDR fields: 1) Create zero-size patches for wall or/and coupled baffles in the boundary file. 2) Specify the boundary contitions for these patches in the fields. 3) Create the new PDR mesh using the PDRMesh utility.