|September 8, 2013, 16:51||
EngineFoam OpenFoam v2.2.1
Join Date: Jul 2012
Posts: 34Rep Power: 6
I am trying to use engineFoam (OpenFoam v2.2.1)solver which is basically a RANS solver, for LES modeling. But once i specify the turbulence model as LES, provide LES properties file, and try and run the solver i get the following error :
--> FOAM FATAL ERROR:
request for volScalarField mut from objectRegistry region0 failed
available objects of type volScalarField are
sqr(((-(0.666667*tr(symm(grad(U))))+sqrt((sqr((0.666667*t r(symm(grad(U)))))+((4*(ce|delta))*(((2*ck)*delta) *(dev(symm(grad(U)))&&symm(grad(U))))))))|(2*(ce|d elta))))
From function objectRegistry::lookupObject<Type>(const word&) const
in file /usr/apps1/openfoam-2.2.1/OpenFOAM-2.2.1/src/OpenFOAM/lnInclude/objectRegistryTemplates.C at line 164.
Since "mut" is defined for RANS modeling i am confused.Do I need to modify the turbulenceModel.C file in this case?
I tried adding a volScalarfield "mut" to the createFields.H file , just to get things going but i still get the same error.
Please note that I had been switching to LES in version 2.1.1 of the same solver , in the same way without any errors.
Any help will be appreciated.
Thanks in Advance.
|September 8, 2013, 20:06||
Join Date: Aug 2013
Posts: 26Rep Power: 5
I think your 0 files has some question, Maybe you should check it.
|September 28, 2015, 10:27||
Join Date: Jul 2011
Posts: 15Rep Power: 7
hi I've got same problem did you solve the problem
Did you try changing nuSgs to muSgs in source files code?
|January 1, 2016, 23:06||
Join Date: Jun 2009
Posts: 16Rep Power: 9
I know it's too late to reply but just for future users.
This problem happens due to the misuse of wall functions, try using suitable ones for your model.
|January 2, 2016, 04:57||
Join Date: Nov 2015
Posts: 54Rep Power: 3
I have just run engineFoam for LES turbulence model without errors in openFoam 2.2.1.
Remember that openFoam 2.1.1 is bugged.
1. Copy LESProperties to your constant folder.
2. Change in turbulenceProperties to LESModel.
3. Copy files muSgs and alphaSgs to -180 folder.
3. Change names of boundaryField to piston, liner and cylinderHead (as You call the group of outer faces) in Your files muSgs and alphaSgs.
I haven't done analyse of results yet.
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