Dear Skeptik,
Any success in axisymmetric jet case using LRR ?
--
KANNAN

About a case
 

Really, i haven't understood your case.
But i have something to say about case settings.

1. You chose steady-state simulation. Do you know that in this case you get only rough solution?

try pisoFoam.

2. You should play with fvSchemes. Higher-order schemes are preferred, but you should balance in numerical stability and numerical scheme.

All I need is just a rough solution i.e. averaged values using steady state RANS LLR
--
KANNAN

Hello friends

I want to implement LLR model in OpenFOAM for micro-jet extracting device . It is asking

me to write R file.I have written that file. After that when I run the code parallaly It produce

floating point error in decomposePardict.

I am attaching you both log file and R file in zip format

Regards
harshawardha

Reynolds Stress Model (for example LRR)
 

My case is a CYCLONE. I want to use Reynolds Stress Model (LRR) at OpenFOAM but I do not know how to use and define at the software.
To begin, I found a file R and changed it. My boundary conditions are inlet, outlet and walls.

File U is as fallow:
dimensions [0 1 -1 0 0 0 0];
internalField uniform (0 0 0);
boundaryField
{
walls
{
type noSlip;
}
inlet
{
type pressureInletOutletVelocity;
value uniform (-10 0 0);
}
outlet
{
type pressureInletOutletVelocity;
value uniform (0 0 0);
}
}

File R is as fallows:
dimensions [0 2 -2 0 0 0 0];
internalField uniform (0 0 0 0 0 0);
boundaryField
{
wallS
{
type kqRWallFunction;
value uniform (0 0 0 0 0 0);
}

inlet
{
type pressureInletOutletVelocity;
value uniform (0.0015325 0 0 0.0015325 0 0.00306504);
}

outlet
{
type zeroGradient;
}
}

According to the file U, What changes do I need on R?
Have you a file R to send to me?
I need the fvSolution and fvSchemes files for model LRR.

--> FOAM FATAL IO ERROR:
Cannot find patchField entry for walls

file: /home/dadehnegar/OpenFOAM/dadehnegar-4.0/run/project/MYcyclone/air+water/rsmLRR/0/R.boundaryField from line 25 to line 37.

According to the files U and R in above, help me to solve this error please.

Thanks
Ali

Dear skeptik,
I can not download your testcase in above. Please send me your CYCLONE case if possible. It will help me very much.

Thanks,
Ali

Dear Skeptik,

I need your help.
Please send me your Email address.

Thanks,
Ali

Dear skeptik
I created R file and corrected it. Now, my problem is at the fvSchemes as fallow:

--> FOAM FATAL IO ERROR:
[0] keyword div(phi,R) is undefined in dictionary "/home/ebtedaei/OpenFOAM/ebtedaei-4.0/run/project/MYcyclone/air+water/rsmLRR/system/fvSchemes.divSchemes"
[0]
[0] file: /home/dadehnegar/OpenFOAM/ebtedaei-4.0/run/project/MYcyclone/air+water/rsmLRR/system/fvSchemes.divSchemes from line 30 to line 35.
[0]


Please send a fvSchemes file for LRR model and your Email address.

Thanks
Ali

lrr simulation
 

Please can you share again the file?

Hi,
can you please upload this file again as it is un available?