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

Implementation of a sponge layer/buffer zone

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 6, 2013, 17:04
Default Implementation of a sponge layer/buffer zone
  #1
New Member
 
Michael Sanderson
Join Date: Sep 2011
Posts: 4
Rep Power: 12
mrs206 is on a distinguished road
Dear All,

As part of my work i have been looking at applying a buffer zone into the rhoPimpleFoam solver to damp variables at the boundaries to prevent reflections, particularly relevant to acoustic problems.

Ive read some posts in the past on this topic and i was wondering if people would be interested in getting the source code for the modifications i have made? Im just putting the final touches to the code/commenting/tidying up.

I have also created compressible versions of the DDES and IDDES turbulence models from their respective incompressible versions.

All the best,

Michael

Last edited by mrs206; February 6, 2013 at 17:22.
mrs206 is offline   Reply With Quote

Old   December 4, 2013, 10:56
Default
  #2
Member
 
Emeline Noel
Join Date: Dec 2013
Location: Paris
Posts: 30
Rep Power: 10
zarox is on a distinguished road
Hi,

Your code should be very interresting for me, I need a sponge layer to damp vortex and I didn┤t find this feature in OpenFOAM... So If your are aware to share your code, I am interresting.

Emeline
zarox is offline   Reply With Quote

Old   June 6, 2014, 02:00
Default
  #3
Member
 
Fluid Dynamics
Join Date: Mar 2013
Posts: 41
Rep Power: 11
cfd.with.openfoam is on a distinguished road
Hi Micheal,

I am currently simulating a subsonic jet (Mach = 0.51) and I could benefit a lot from your buffer zone code.

Beyond that I have also been looking for compressible DES models. Do you think you can share them too? Also, have you been able to validate them?

If you need more details on me then please let me know. I think I would be able to explain why am I not coding these things on my own - well it all comes down to time as you know.

Thank you very much.
cfd.with.openfoam is offline   Reply With Quote

Old   July 17, 2014, 06:17
Default
  #4
New Member
 
Join Date: Jul 2014
Posts: 13
Rep Power: 9
wc3speler is on a distinguished road
p, li { white-space: pre-wrap; } Hi Michael,


What a nice offer!


I am working on aeroacoustics. Currently I use the convectiveOutlet bc, which works pretty well. I was also making some attemps to implement a buffer zone, but it actually makes things worse in my case (probably because I am new to OF programming). Nevertheless, I would be very interested in your code!


Let me know if you need any information from my side.


Thanks in advance!
wc3speler is offline   Reply With Quote

Old   January 18, 2018, 06:31
Default
  #5
New Member
 
J˘natas Ferreira Lacerda
Join Date: Oct 2009
Posts: 2
Rep Power: 0
jflacerda is on a distinguished road
Hi Michael,

I am interesting in the implementation you did. Could you please share it with me?

Thanks in advance.

J˘natas
jflacerda is offline   Reply With Quote

Old   March 13, 2018, 12:24
Default
  #6
Member
 
Join Date: Sep 2014
Posts: 32
Rep Power: 9
yongxiang is on a distinguished road
Hi Michael,
I am also interested to implement such sponge zone at the outlet to avoid any possible reflection. Could you please share this code with me?
with regards
Yongxiang
yongxiang is offline   Reply With Quote

Old   July 5, 2018, 06:21
Question modification of local mesh scale
  #7
Member
 
王莹
Join Date: May 2017
Posts: 51
Rep Power: 6
Alisa_W is on a distinguished road
Hello,

I'm trying to modify IDDES from SST-DES in openfoam, but when I come to the modification of the definition of scale of local mesh, which is one of the most important changes in IDDES, I can't find its codes and the only related code is located in SST K-omega.C, as follows:

scalarField lt = alph*Foam::max(Foam:ow( mesh_.V().field() , 1.0/3.0),
(mag(U_)*runTime_.deltaT())->internalField());

Could you please tell me where I can find the codes?

Thanks a lot!

Alisa

Last edited by Alisa_W; July 5, 2018 at 07:01. Reason: wrong description
Alisa_W is offline   Reply With Quote

Reply

Tags
buffer, layer, openfoam, sponge, zone

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
[Commercial meshers] Mesh conversion problem (fluent3DMeshToFoam) Aadhavan OpenFOAM Meshing & Mesh Conversion 2 March 8, 2018 01:47
[GAMBIT] periodic faces not matching Aadhavan ANSYS Meshing & Geometry 6 August 31, 2013 11:25
[Commercial meshers] fluentMeshToFoam multidomain mesh conversion problem Attesz OpenFOAM Meshing & Mesh Conversion 12 May 2, 2013 10:52
Problem in running ICEM grid in Openfoam Tarak OpenFOAM 6 September 9, 2011 17:51
Problem in IMPORT of ICEM input file in FLUENT csvirume FLUENT 2 September 9, 2009 01:08


All times are GMT -4. The time now is 07:50.