CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

RhoCentralFoam solver

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree2Likes
  • 2 Post By ddemiroguzhan

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 23, 2017, 05:52
Default RhoCentralFoam solver
  #1
New Member
 
Join Date: Aug 2017
Posts: 18
Rep Power: 9
Calmly is on a distinguished road
Hello FOAMers!

I am working on a shock-wave case and I'd like to use the rhoCentralFoam solver.

I understand that this solver is transient but my question is:
Can it be used in LES or in URANS?

Where can I find more info?

Thank you in advance!
Calmly is offline   Reply With Quote

Old   December 7, 2017, 09:28
Default
  #2
New Member
 
Oğuzhan Demir
Join Date: Dec 2016
Posts: 19
Rep Power: 9
ddemiroguzhan is on a distinguished road
Dear Calmly,
You can use rhoCentralFoam for LES or DES simulations. You do not need to do any changes for the solver but you have to change your turbulenceProperties file in order to make a LES analysis.

Oguz
febriyan91 and Calmly like this.
ddemiroguzhan is offline   Reply With Quote

Old   December 21, 2017, 06:32
Default
  #3
New Member
 
Join Date: Aug 2017
Posts: 18
Rep Power: 9
Calmly is on a distinguished road
Quote:
Originally Posted by ddemiroguzhan View Post
Dear Calmly,
You can use rhoCentralFoam for LES or DES simulations. You do not need to do any changes for the solver but you have to change your turbulenceProperties file in order to make a LES analysis.

Oguz
Dear Oguz,

Thank you very much for your answer!
Calmly is offline   Reply With Quote

Old   January 14, 2019, 06:12
Default
  #4
Member
 
madz
Join Date: Sep 2018
Posts: 34
Rep Power: 8
maddy11 is on a distinguished road
In OF V5.x can k-omega SST DES be implemented with no changes except in the turbulence properties file?
maddy11 is offline   Reply With Quote

Old   January 14, 2019, 13:18
Default
  #5
Member
 
Fatih Ertinaz
Join Date: Feb 2011
Location: Istanbul
Posts: 64
Rep Power: 15
fertinaz is on a distinguished road
Hello maddy11

Quote:
In OF V5.x can k-omega SST DES be implemented with no changes except in the turbulence properties file?
Looks like you can use DES without putting too much effort to it. First check whether is k-omega SST with DES extension implemented using a simple Linux command:
Code:
[ertinaz@supernova OpenFOAM-5.x]$ find . -iname "*kOmega*" -type d
This will give you directory names that contain the string kOmega. See that model is actually implemented:
Code:
./src/TurbulenceModels/phaseCompressible/RAS/kOmegaSSTSato
./src/TurbulenceModels/turbulenceModels/LES/kOmegaSSTDES
./src/TurbulenceModels/turbulenceModels/Base/kOmegaSST
./src/TurbulenceModels/turbulenceModels/RAS/kOmegaSSTLM
./src/TurbulenceModels/turbulenceModels/RAS/kOmega
./src/TurbulenceModels/turbulenceModels/RAS/kOmegaSSTSAS
./src/TurbulenceModels/turbulenceModels/RAS/kOmegaSST
Then you can also search your model using the name above with grep in the tutorials directory:
Code:
[ertinaz@supernova tutorials]$ grep -rn "kOmegaSSTDES" *
This will give you nothing because apparently this model is not used in any of the tutorials. However there is SpalartAllmarasDDES which you can use as a template:
Code:
 incompressible/pisoFoam/LES/motorBike/lesFiles/turbulenceProperties:22:    LESModel            SpalartAllmarasDDES;
Now all you need to change is the model name. Replace it by kOmegaSSTDES. Then you might have to figure out if delta function cubeRootVol is fine for you. If you're interested in their implementation details, take a look at the following path:
Code:
[ertinaz@supernova OpenFOAM-5.x]$ ls -l ./src/TurbulenceModels/turbulenceModels/LES/LESdeltas/
total 28
drwxrwxr-x. 2 ertinaz ertinaz 4096 Jan 19  2018 cubeRootVolDelta
drwxrwxr-x. 2 ertinaz ertinaz 4096 Jan 19  2018 IDDESDelta
drwxrwxr-x. 2 ertinaz ertinaz 4096 Jan 19  2018 LESdelta
drwxrwxr-x. 2 ertinaz ertinaz 4096 Jan 19  2018 maxDeltaxyz
drwxrwxr-x. 2 ertinaz ertinaz 4096 Jan 19  2018 PrandtlDelta
drwxrwxr-x. 2 ertinaz ertinaz 4096 Jan 19  2018 smoothDelta
drwxrwxr-x. 2 ertinaz ertinaz 4096 Jan 19  2018 vanDriestDelta
Hope this helps


// Fatih
fertinaz is offline   Reply With Quote

Old   January 16, 2019, 08:51
Default
  #6
Member
 
madz
Join Date: Sep 2018
Posts: 34
Rep Power: 8
maddy11 is on a distinguished road
Thanks a ton Fatih! Was very helpful.
Have u implemented DES model in Openfoam?
maddy11 is offline   Reply With Quote

Reply

Tags
rhocentralfoam

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[Other] OpenFOAM Installation for navalFoam sachinlb OpenFOAM Community Contributions 22 July 28, 2017 06:26
thobois class engineTopoChangerMesh error Peter_600 OpenFOAM 4 August 2, 2014 10:52
Can't get data from OpenFoam to external solver using externalCoupled perry OpenFOAM Running, Solving & CFD 4 May 26, 2014 09:09
rhoCentralFoam solver for simulating airfoil in high altitude sani OpenFOAM 0 September 27, 2012 12:22
why the solver reject it? Anyone with experience? bearcat CFX 6 April 28, 2008 15:08


All times are GMT -4. The time now is 02:02.