Accessing LES Delta Values From Solver Code

mchurchf · October 25, 2010, 17:46

Hello,

I am trying to make a modification to buoyantBoussinesqPisoFoam in which the turbulent Prandtl number is a function of the LES filter width. Is there any way to access the LES filter width field from buoyantBoussinesqPisoFoam.C? I tried turbulence->delta(), but that does not work.

Thank you,

Matt

hz283 · December 8, 2012, 15:44

Hi Matt,
Did you solve this problem?
I am using rhoPimpleFoam and LES Smagorinsky model. The filter width delta is used in the simulation. Now I would like to use delta() to output another quantity (it is volScalarField type), and I think I can add somes lines in creatFields.H. However, I had some problems about how to use the fileter delta () in createFields.H of rhoPimpleFoam. Thank you very much.

October 25, 2010, 17:46	Accessing LES Delta Values From Solver Code	#1
mchurchf Member Matthew J. Churchfield Join Date: Nov 2009 Location: Boulder, Colorado, USA Posts: 45 Rep Power: 5	Hello, I am trying to make a modification to buoyantBoussinesqPisoFoam in which the turbulent Prandtl number is a function of the LES filter width. Is there any way to access the LES filter width field from buoyantBoussinesqPisoFoam.C? I tried turbulence->delta(), but that does not work. Thank you, Matt

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December 8, 2012, 15:44		#2
hz283 Senior Member Join Date: Nov 2012 Posts: 143 Rep Power: 2	Hi Matt, Did you solve this problem? I am using rhoPimpleFoam and LES Smagorinsky model. The filter width delta is used in the simulation. Now I would like to use delta() to output another quantity (it is volScalarField type), and I think I can add somes lines in creatFields.H. However, I had some problems about how to use the fileter delta () in createFields.H of rhoPimpleFoam. Thank you very much.