Turbulent Flow Simulations with Elmer - A Request
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Re: Turbulent Flow Simulations with Elmer - A Request
And here the case files and the solver source file.
- Attachments
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- KEpsSolver.F90
- (40.08 KiB) Downloaded 234 times
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- case_CoupledMode.sif
- (3.44 KiB) Downloaded 238 times
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- case_SegregatedMode.sif
- (4.41 KiB) Downloaded 237 times
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Re: Turbulent Flow Simulations with Elmer - A Request
Hello,
Thank you for your efforts!
I would try to use your modified solver KEpsSolver.F90.
I work on Windows and I found only KEpsSolver.dll file. How can I integer your file in my installed Elmer directory?
Sorry for the basic question.
Julien
Thank you for your efforts!
I would try to use your modified solver KEpsSolver.F90.
I work on Windows and I found only KEpsSolver.dll file. How can I integer your file in my installed Elmer directory?
Sorry for the basic question.
Julien
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- Posts: 54
- Joined: 17 Jun 2015, 10:04
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Re: Turbulent Flow Simulations with Elmer - A Request
Hi Julien,
Just compile the solver file in the case directory, you'll find KEpsSolver.dll in the same directory. Please add the statement
Procedure = "KEpsSolver" "KEpsSolver" in the solver section of your case file. In my example, the respective case files are given above and you'll find the mesh files in a previous post above (2DJetMixingTank.zip)
Thanks & regds
Kumar
Just compile the solver file in the case directory, you'll find KEpsSolver.dll in the same directory. Please add the statement
Procedure = "KEpsSolver" "KEpsSolver" in the solver section of your case file. In my example, the respective case files are given above and you'll find the mesh files in a previous post above (2DJetMixingTank.zip)
Thanks & regds
Kumar
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Re: Turbulent Flow Simulations with Elmer - A Request
Hi Peter,
I have also tried using the FCT version of the solver. When FCT corrections are applied, the solver runs just fine in the beginning but eventually crashes. To activate the FCT, I have turned both the stabilization and Bubbles off (standard SUPG stabilization anyway is not implemented for the KE solver) and activated the keyword
Linear System FCT = Logical True
Another interesting (and intriguing!) feature is that the solver in FCT mode converges when the FCT corrections are turned off! This is effected by the statement
FCT Correction Skip = Logical True
I'm finding it really difficult to understand this result. As far as I can see, FCT is implemented in the subroutine FCT_Correction ( Solver ) in the SolverUtils.F90 file in the last section through the statement
u = u + ucorr
However, applying the corrections seem to result in instability. I am stuck at this stage
I think I am making a mistake somewhere; Could you please take a look at the case file, Peter? Thanks,
Kumar
I have also tried using the FCT version of the solver. When FCT corrections are applied, the solver runs just fine in the beginning but eventually crashes. To activate the FCT, I have turned both the stabilization and Bubbles off (standard SUPG stabilization anyway is not implemented for the KE solver) and activated the keyword
Linear System FCT = Logical True
Another interesting (and intriguing!) feature is that the solver in FCT mode converges when the FCT corrections are turned off! This is effected by the statement
FCT Correction Skip = Logical True
I'm finding it really difficult to understand this result. As far as I can see, FCT is implemented in the subroutine FCT_Correction ( Solver ) in the SolverUtils.F90 file in the last section through the statement
u = u + ucorr
However, applying the corrections seem to result in instability. I am stuck at this stage
I think I am making a mistake somewhere; Could you please take a look at the case file, Peter? Thanks,
Kumar
- Attachments
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- case_FCT.sif
- (4.59 KiB) Downloaded 217 times