wallShearStress & creatTurbulenceFields in OF 1.6

ar_mofidi · April 12, 2010, 08:05

Hi,
I have a turbulent channel flow with slip BC. on bottom wall and I have solved this channel with channelFoam. I would like to calculate the WallShearStress and also I want to create turbulence fields for calculating the Reynolds stress R, in OpenFoam 1.6. I should be remind that my Turbulence Model is LES. How can I do that?

Regards,
Alireza

idrama · April 12, 2010, 12:14

Have ya already try the post-processing tool wallShearStress ?

ar_mofidi · April 13, 2010, 04:31

Hi idrama

yes, I have used wallShearStress but it didn't work. when I use this term this message appears:

Create time

Create mesh for time = 3.00141

Time = 3.00141
Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian

cannot open file

file: /home/sekhavat/OpenFOAM/sekhavat-1.6/run/tutorials/incompressible/channelFoamslip/channeltopwallslip/constant/RASProperties at line 0.

From function regIOobject::readStream()
in file db/regIOobject/regIOobjectRead.C at line 62.

FOAM exiting

idrama · April 15, 2010, 04:39

Hallo,

wallShearStress is dependent on on turbulence models, hence is need RASProperties. You must check that. Strangely, the time mesh value 3.**.
If you cannot fix it, check the Forum for "computing wall shear stresses", I think. In this Forum, there are already hot discussens about that.

cheers

April 12, 2010, 08:05	wallShearStress & creatTurbulenceFields in OF 1.6	#1
ar_mofidi New Member alireza Join Date: Apr 2009 Location: iran Posts: 11 Rep Power: 17	Hi, I have a turbulent channel flow with slip BC. on bottom wall and I have solved this channel with channelFoam. I would like to calculate the WallShearStress and also I want to create turbulence fields for calculating the Reynolds stress R, in OpenFoam 1.6. I should be remind that my Turbulence Model is LES. How can I do that? Regards, Alireza

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April 12, 2010, 12:14		#2
idrama Senior Member Claus Meister Join Date: Aug 2009 Location: Wiesbaden, Germany Posts: 241 Rep Power: 18	Have ya already try the post-processing tool wallShearStress ?

April 13, 2010, 04:31		#3
ar_mofidi New Member alireza Join Date: Apr 2009 Location: iran Posts: 11 Rep Power: 17	Hi idrama yes, I have used wallShearStress but it didn't work. when I use this term this message appears: Create time Create mesh for time = 3.00141 Time = 3.00141 Reading field U Reading/calculating face flux field phi Selecting incompressible transport model Newtonian cannot open file file: /home/sekhavat/OpenFOAM/sekhavat-1.6/run/tutorials/incompressible/channelFoamslip/channeltopwallslip/constant/RASProperties at line 0. From function regIOobject::readStream() in file db/regIOobject/regIOobjectRead.C at line 62. FOAM exiting

April 15, 2010, 04:39		#4
idrama Senior Member Claus Meister Join Date: Aug 2009 Location: Wiesbaden, Germany Posts: 241 Rep Power: 18	Hallo, wallShearStress is dependent on on turbulence models, hence is need RASProperties. You must check that. Strangely, the time mesh value 3.**. If you cannot fix it, check the Forum for "computing wall shear stresses", I think. In this Forum, there are already hot discussens about that. cheers