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Implementation of a sponge layer/buffer zone

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Old   February 6, 2013, 17:04
Default Implementation of a sponge layer/buffer zone
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Michael Sanderson
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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,


Last edited by mrs206; February 6, 2013 at 17:22.
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Old   December 4, 2013, 10:56
Emeline Noel
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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.

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Old   June 6, 2014, 02:00
Fluid Dynamics
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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.
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Old   July 17, 2014, 06:17
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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!
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Old   January 18, 2018, 06:31
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J˘natas Ferreira Lacerda
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Hi Michael,

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

Thanks in advance.

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Old   March 13, 2018, 12:24
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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
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Old   July 5, 2018, 06:21
Question modification of local mesh scale
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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),

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

Thanks a lot!


Last edited by Alisa_W; July 5, 2018 at 07:01. Reason: wrong description
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buffer, layer, openfoam, sponge, zone

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