[gabriel_stokes]

Hey,

I have been browsing around this forum to try to find out how to run a simulation on a simple domain with a porous zone in OF.

In Fluent I can define a porous zone with ease, but I was wondering if anyone would be so kind, to explain how I proceed with OpenFoam.

I guess I need to move from my current favourite: simpleFoam, to a dedicated solver, right? Secondly, it seems that I need to setup the porosity parameters in a file, 'porousZones', which I should create in the constant/-directory, right? But, well - I need a straight-forward cookbook example, if possible.

Thanks, and best regards
Mads

[plmauk]

Hi,
1.You can`t solve a porous case with simpleFoam. You should use something like rhoImplicitPorousSimpleFoam.
2.You need cellSets and cellZones to define the geometrie of the porous zone inside of your mesh.
3.You really need to create file "porousZones" and place it to the constant directory. Deciding is, that you set coefficients d and f (Darcy`law)
and vectors e1 and e2.

[gabriel_stokes]

Hi,

Thanks a lot for your kind answer.

1. It is just that in the tutorials (for rhoImplicitPorousSimpleFoam), it seems that some compilation is needed, is that so?
2. I guess fluent3DToFoam can generate the cellSets and the cellZones files, right?
3. Then I just need to define the zones I want to be porous in the porousZones files, correct?

And then run rhoImplicitPorousSimpleFoam as it was simpleFoam...?

/Mads

[plmauk]

Hi,
1.I don't think, the compilation is needed, try to run tutorial examples from the rhoImplicitPorousSimpleFoam - directory. If it works, it don't have to be compiled.
2.fluent3DToFoam generates cellZones and faceZones, but no sets were generated. If you have a cellZone on the right place after convertion, you should just name it, as the porousZoneDict was named.
3.The answer is allready given

regards
Paul.

[gabriel_stokes]

Okay, thanks.

The rhoImplicitPorousSimpleFoam appears to be a compressible solver.

What if I want to run incompressible?

/Mads

[plmauk]

You need a new solver in this case.
Try to combine simpleFoam and rhoPorousSimpleFoam.
If you are not able to do that, I can send you my own solver called porousSimpleFoam.

[heilskov7]

Hi,

I have the same problem as Mads Reck outlined - I like to do an incompressible computation including porous cells. Thus if it is possible it would be a great help if i was able to get the solver 'porousSimpleFoam' you mentioned to Mads.

Thanks, and best regards
Nicolai

[mkraposhin]

please, write to my e-mail (mkraposhin@inbox.ru) and i will send you solver

[ayoros]

Hi,

Is there any porousSimpleFoam solver available for OpenFOAM 1.5 ?

I'm really struggling with combining simpleFoam and rhoPorousSimpleFoam.

Thanks,
Fabien

[mahendra]

Hi Paul,

I am using OpenFoam 1.5 and I am unable to find a porousSimpleFoam solver for incompressible porous cases there?

Can you send me the solver if you have one?

My email mahendra.wankhede@gmail.com

Regards,
Mahendra.

[mkraposhin]

Link to porousSimpleFoam solver for OpenFOAM 1.4.1

http://www.os-cfd.narod.ru/small_fil...SimpleFoam.tgz

[mkraposhin]

Link to porousSimpleFoam solver for OpenFOAM 1.4.1

http://www.os-cfd.narod.ru/small_fil...SimpleFoam.tgz

[vinz]

Hi everyone,

Here is the incompressible porous solver I derived for OpenFOAM 1.5 :
http://www.rtech-engineering.com/Ope...SimpleFoam.zip

I tested it with both implicit and explicit test cases and apparently it works fine.
Hope this helps.

Vincent

[evrikon]

Originally Posted by vinz

Hi everyone,

Here is the incompressible porous solver I derived for OpenFOAM 1.5 :
http://www.rtech-engineering.com/Ope...SimpleFoam.zip

I tested it with both implicit and explicit test cases and apparently it works fine.
Hope this helps.

Vincent

Hi Vincent,

I wrote incompressible solver too. I compared your solver with my formulation and recognized the only difference is in the pEqn.H, line 1:

I have copied in my version from simpleFoam solver the following line

//p.boundaryField().updateCoeffs();

Do you know some reason why it should be not included in the cold porous simple solver?

Regards, Oleksiy

[beretti_a]

Hello foamers,

I tried the incompressible porous solver you posted here below but I get some problems while builiding it with OpenFOAM 1.6. I think this may be a problem related to the OpenFOAM version.

Has anybody else had the some problem? Does anybody know how to fix it?
Has anybody derived an incompressible porous solver for OpenFOAM 1.6?

Thanks in advance and best regards,
Andrea

[stawrogin]

Hi Andrea,

if you use the git and OpenFOAM 1.6.x you will find a porousSimpleFOAM for incompressible media provided by OpenCFD.

Best regards

Stawrogin

[beretti_a]

Very thanks Stawrogin for your hint.

Best regards
Andrea