[rr3245]

I am looking to write an LES subgrid-scale model which is based off the SSG model (Speziale, Sarkar and Gatski, 1991). The SSG model solves for the Reynolds stress and takes the trace to evaluate the scalar kinetic energy. The dissipation equation takes a standard form. For reference, the SSG model in OF is described here:

https://www.openfoam.com/documentation/cpp-guide/html/guide-turbulence-ras-ssg.html

I have already had some success in converting a two-equation RANS model (k-epsilon), into a two-equation LES SGS model. However, I am a little unsure about how RAS models load the Reynolds Stress (but I am not interested in the REqn at the moment). The SSG.H file calls:

#include ReynoldsStress.H

Is the ReynoldsStress.H file general in the sense that it can work with a resolved LES velocity field? It seems to work OK in the test case I generated: (i) taken the SSG.C SSG.H files, compiled them locally, and tested they work for a RAS calculation (all fine). (ii) Changed all references of RASModel/RASModels to LESModel/LESModels and compiled with a makeTurModel.C file (all fine). (iii) Ran a test simulation as an LES (all fine). Am I missing something here? Thanks, RH.