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March 9, 2019, 19:19
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fixedProfile kOmega
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#1 |
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New Member
Mazen Draw
Join Date: Sep 2018
Posts: 21
Rep Power: 8  |
Hello everyone!
Lately, I have been working on implementing Omega profile in the inlet BC of an ABL flow that I've seen in some paper. The idea is to define Omega based on k and epsilon. So one has to go from k-epsilon model to k-omega model. For modeling k in a previous k-epsilon case I used fixedProfile type in the inlet BC and imported data from csv.file and it worked without any errors. I want to do the same for omega, but I am getting the following exception: Code:
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 5.x |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 5.x-68e8507efb72
Exec : simpleFoam
Date : Mar 10 2019
Time : 00:03:46
Host : "mazen"
PID : 2281
I/O : uncollated
Case : /home/mazen/ownCloud/MasterThesis_WtG_ValidationCase/Mazen/14.09/simulations/Mazen/CukOmegaS2
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time
Create mesh for time = 0
SIMPLE: convergence criteria
field p tolerance 1e-06
field Ux tolerance 1e-06
field Uy tolerance 1e-06
field Uz tolerance 1e-06
field "(k|epsilon|omega)" tolerance 1e-06
Reading field p
Reading field U
Reading/calculating face flux field phi
Selecting incompressible transport model Newtonian
Selecting turbulence model type RAS
Selecting RAS turbulence model kOmega
--> FOAM FATAL IO ERROR:
wrong token type - expected Scalar, found on line 0 the word '0.0001'
file: IStringStream.sourceFile at line 0.
From function Foam::Istream& Foam::operator>>(Foam::Istream&, Foam::doubleScalar&)
in file lnInclude/Scalar.C at line 93.
FOAM exiting
Code:
boundaryField
{
IN
{
type fixedProfile;
profile csvFile;//[Yang 2009]
profileCoeffs
{
nHeaderLine 0;
refColumn 0;
componentColumns (1);
separator ",";
mergeSeparators no;
file "0/Omegaprofile.csv";
outOfBounds clamp;
interpolationScheme linear;
}
direction (0 0 1);
origin 0;
}
I wonder why I am getting this exception since the values in csv.file are of double scalar type which is what's needed. Anyone has an idea? Thanks in advance! |
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March 10, 2019, 20:09
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#2 |
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Member
Join Date: Dec 2012
Posts: 33
Rep Power: 14 |
Looks like the scalar entry is being treated as a string given it's reading it as '0.0001' instead of 0.0001. Maybe you need to check your csv file. Try opening it in a text editor like gedit, notepad or vim. Are there quotations around the numbers?
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January 23, 2023, 08:08
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About fixedProfile kepsilon
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#3 | |
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New Member
Eren Kaya
Join Date: Jan 2023
Posts: 8
Rep Power: 3 |
Hi MazenDraw, I wish you a good year.
I am working on an OpenFOAM CFD project for my graduation thesis. I want to implement k and epsilon values to specific locations using fixedProfile command and csvFile. My 0.k and 0.epsilon files are completely same with yours except the direction, which is (0 1 0) since it is in y-direction. After the iterations, when OpenFOAM begin to write the iteration results to timestep file, i.e. for my case 500, I am receiving an error message that is: --> FOAM FATAL ERROR: (openfoam-2206) unallocated autoPtr of type N4Foam9Function1INS_10SymmTensorIdEEEE From T* Foam::autoPtr<T>:: operator->() [with T = Foam::Function1<Foam::SymmTensor<double> >] in file /usr/src/packages/BUILD/src/OpenFOAM/lnInclude/autoPtrI.H at line 178. FOAM aborting I've searched the forum for this error but I could not find a solution. Can you give me any advice if you have encountered this error before? Thanks a lot. Quote:
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January 23, 2023, 08:45
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#4 |
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New Member
Mazen Draw
Join Date: Sep 2018
Posts: 21
Rep Power: 8 |
Hello Eren,
This has been long time ago and I don't really have the files for this case anymore. If I remember correctly it is similar to your data, z coordinates in the first column and k values in the second. To give you something to work with, you can check out the boundary condition specifications of this tutorial https://github.com/OpenFOAM/OpenFOAM.../0/T.particles And here you can find the data file they used for it: https://github.com/OpenFOAM/OpenFOAM...allTemperature I know you are using a different version of OpenFOAM, but this boundary condition is so old that I can imagine it is almost identical in both versions. Finally pay attention to the entries: "nHeaderLin", "refColumn" and "componentColumns". They tell the solver where to start parsing the data from the data file. |
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January 23, 2023, 08:54
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#5 | |
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New Member
Eren Kaya
Join Date: Jan 2023
Posts: 8
Rep Power: 3 |
Thanks for your quick responding Mazen! Have a good day.
Quote:
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| Tags |
| expected scalar, fixedprofile, inlet bc omega, omega profile |
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Linear Mode
