Now I start to try to use oodl
 

Now I start to try to use oodles to solve the flow in a constricted tube.

But in fact, I don't know the meaning of the coefficients in the folder of 0. what is the meaning of B,nuSgs, nuTilda? who would like to tell me?

I also don't know the meaning of the coefficients in the file of LESProperties?

Who could tell me how I could know it?

Hi Xiaoguang B is sub-g
 

Hi Xiaoguang

B is sub-grid stress tensor
nuSgs is sub-grid viscosity
NuTilda is kinematic turbulent viscosity

The coefficients are model-dependent

See the model implementation of sgs model in

/home/sujunwei/OpenFOAM/OpenFOAM-1.5.x/src/turbulenceModels/LES/incompressible/

Su Junwei

Thanks for your response. I wi
 

Thanks for your response. I will check it.

Thanks for your response. I wi
 

Thanks for your response. I will check it. In addition, for the treatment of flow near the wall, do I need to handle it additionally? Does it include in the sgs model?

It depends. Try to start from
 

It depends. Try to start from channelOodles, pay attention to LESproperties file, there near wall treatment is specfied.

Anyway, it is also model-dependent. http://www.cfd-online.com/OpenFOAM_D...part/happy.gif