I am working on large eddy simulation on jet impingement cooling i have certain question please help me
1).i have made mesh using two approach in which I make mesh according to delta x and delta y and delta z and give growth ratio at deltax and delta y and another approach is near the wall I made cell of the size of kolmogrov length scale and away from wall followed deltax and delta y and deltaz. which is right
2) I am bit confused of adding bc In zero folder in openfoam like for smogranski i added B and s for wale model i am using B but how can we add ksgs and subgrid heat flux.
1) For LES, using kolmogorov length scale with constant growth of cells in inside region is always better. It gives accurate prediction of eddy.
Wale model - You can refer a standard OprnFOAM tutorial from opt/openfoam7/tutorials/incompressible/pimpleFoam/LES/channel395
Smogransky model (where you use Eddy viscosity approximation) - Setting up turbulent viscosity, pressuure & velocity will take care of rest.
3) There are some case studies available at Here. They will help you to build your case.