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Forum: OpenFOAM Running, Solving & CFD

May 13, 2008, 10:16

Replies: 64

HELP NEEDED with TURBFOAM

Views: 8,014

Posted By dinonettis

I've just tried to reduce the

I've just tried to reduce the near wall cell with an edgeweight equal to 0.5. Then I run checkMesh and the test failed for the High aspect ratio cells near the wall. Moreover I've tried to run...

Forum: OpenFOAM Running, Solving & CFD

May 12, 2008, 11:08

Replies: 64

HELP NEEDED with TURBFOAM

Views: 8,014

Posted By dinonettis

Hi Matvey, I've checked the

Hi Matvey,

I've checked the y+ in the LSKE steady case you sent me, with the refined grid made with salome, but its range is 6-25 that is not so acceptable.
Anyway since I think I'm going to...

Forum: OpenFOAM Running, Solving & CFD

May 8, 2008, 15:14

Replies: 64

HELP NEEDED with TURBFOAM

Views: 8,014

Posted By dinonettis

ok, thank you very much krapos

ok, thank you very much kraposhin!
my mail is nettis@imedado.poliba.it

Enjoy

LN

Forum: OpenFOAM Running, Solving & CFD

May 8, 2008, 02:44

Replies: 64

HELP NEEDED with TURBFOAM

Views: 8,014

Posted By dinonettis

Hello Kraposhin and Philippose

Hello Kraposhin and Philippose:

- As I aforesaid the iteration process keeps this strange behaviour also in the case turbulence is set "on"!

- Re=1e6.... Isn't LaunderSharmaKE a low...

Forum: OpenFOAM Running, Solving & CFD

May 7, 2008, 15:24

Replies: 64

HELP NEEDED with TURBFOAM

Views: 8,014

Posted By dinonettis

Dear all, thank you for you

Dear all,

thank you for your support!

-First of all, the turbulence model I'm using is LaunderSharmaKE (no wallfunctions). In the iteration I've shown it is simply turned off, since I've...

Forum: OpenFOAM Running, Solving & CFD

May 7, 2008, 07:42

Replies: 64

HELP NEEDED with TURBFOAM

Views: 8,014

Posted By dinonettis

Hi Philippose, this is the

Hi Philippose,

this is the output of checkMesh! I'm using a 2D grid found on nasa.gov, and imported in OF extruding the 3rd dimension for an amount of 0.01 (based on the wing chord=1)....

Forum: OpenFOAM Running, Solving & CFD

May 7, 2008, 06:41

Replies: 64

HELP NEEDED with TURBFOAM

Views: 8,014

Posted By dinonettis

Hi Dragos, I'm currently us

Hi Dragos,

I'm currently using an initial solution obtained with potentialFoam, so I do not think the problem is that.... Anyway I've tried with very small deltaT, so that initially the max Co...

Forum: OpenFOAM Running, Solving & CFD

May 7, 2008, 06:34

Replies: 64

HELP NEEDED with TURBFOAM

Views: 8,014

Posted By dinonettis

Dear Jaswinder, Thank you f

Dear Jaswinder,

Thank you for your fast reply!
I've just tried to recompile turbfoam.c according to your advice but the results are not encouraging:

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Forum: OpenFOAM Running, Solving & CFD

May 6, 2008, 13:16

Replies: 64

HELP NEEDED with TURBFOAM

Views: 8,014

Posted By dinonettis

hi foamers, I'm struggling

hi foamers,

I'm struggling with turbfoam to analyze a rae2822 profile at Ma=0.1. Unfortunately, after hundreds of trials, I cannot understand which is the reason of the following behaviour in...

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