Dimension problem rhoPisoFoam

FabOr · May 27, 2010, 08:26

Hi all,

i am new to OF and have a dimension problem when i want to solve a turbulent, compressible case.

So what dimensions should alphaSgs, muSgs, nuSgs, and nuTilda have?
I would be also pleased if anyone can tell me anything about these variables, for example their expression in equations like navier-stokes,...

thanks!

FabOr · May 28, 2010, 07:36

i solved this problem by editing the p dimension to [1 -1 -2 0 0 0 0]

I´ve forgot that i´ve copied the files out of an incompressible case

thekay · May 28, 2010, 07:40

Yes. From what I have experienced so far, the best practice scientifically and in terms of programming is to write down all equations your solver uses and see if the units are all the same.

May 27, 2010, 08:26	Dimension problem rhoPisoFoam	#1
FabOr Member Join Date: May 2010 Posts: 33 Rep Power: 15	Hi all, i am new to OF and have a dimension problem when i want to solve a turbulent, compressible case. So what dimensions should alphaSgs, muSgs, nuSgs, and nuTilda have? I would be also pleased if anyone can tell me anything about these variables, for example their expression in equations like navier-stokes,... thanks!

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May 28, 2010, 07:36		#2
FabOr Member Join Date: May 2010 Posts: 33 Rep Power: 15	i solved this problem by editing the p dimension to [1 -1 -2 0 0 0 0] I´ve forgot that i´ve copied the files out of an incompressible case

May 28, 2010, 07:40		#3
thekay Member Costas K Join Date: Nov 2009 Location: UK Posts: 51 Rep Power: 16	Yes. From what I have experienced so far, the best practice scientifically and in terms of programming is to write down all equations your solver uses and see if the units are all the same.