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Forum: OpenFOAM Running, Solving & CFD

March 15, 2010, 11:40

Replies: 37

Rotating Mesh

Views: 14,586

Posted By enry

Hi hansel, I create a mesh that can give me a...

Hi hansel,
I create a mesh that can give me a value of mean y+ about 30. Mesh resolution so depend of course on simulation set up. My first cell is about 1/800 turbine diameter.
I advice you to...

Forum: OpenFOAM Running, Solving & CFD

March 15, 2010, 11:17

Replies: 37

Rotating Mesh

Views: 14,586

Posted By enry

Hi nick, sorry, I read only your last reply ;). ...

Hi nick, sorry, I read only your last reply ;).

FLUENT is faster than OF, because In FLUENT I impose a time step, wile in OF I set adjustTimeStep in order to have CFL<0.3-0.4.
I can say that...

Forum: OpenFOAM Running, Solving & CFD

March 15, 2010, 10:52

Replies: 37

Rotating Mesh

Views: 14,586

Posted By enry

@Nick: Sorry, not yet, but I think that I will...

@Nick: Sorry, not yet, but I think that I will run calculation in parallel untill next month.

@Hansel:

RASProperties:

RASModel RNGkEpsilon;

You can use also realizable K-E....

Forum: OpenFOAM Running, Solving & CFD

March 15, 2010, 10:24

Replies: 37

Rotating Mesh

Views: 14,586

Posted By enry

Hi Nick, the curves overlap! Results is...

Hi Nick,

the curves overlap! Results is very very similar. I haven't done any error percentage until now, but I'm satisfied.

Forum: OpenFOAM Running, Solving & CFD

March 15, 2010, 09:23

Replies: 37

Rotating Mesh

Views: 14,586

Posted By enry

Hi Nick, I found my error... Since the mesh...

Hi Nick,
I found my error...
Since the mesh is 2D, OF tranform it into 3D mesh, even if it solve with 2D solver. So to compare 2D FLUENT's results with pseudo-3D OF's results I have to divide OF...

Forum: OpenFOAM Running, Solving & CFD

March 13, 2010, 11:28

Replies: 37

Rotating Mesh

Views: 14,586

Posted By enry

Hi hansel, thanks for your quikly reply. Sorry...

Hi hansel, thanks for your quikly reply.
Sorry but, icoDyMFoam is a solver for LAMINAR flows, isn't it? I can't understand how can I get reasonable results...

Forum: OpenFOAM Running, Solving & CFD

March 13, 2010, 03:46

Replies: 37

Rotating Mesh

Views: 14,586

Posted By enry

Hi yuhai, I'm trying to simulate a flow around a...

Hi yuhai, I'm trying to simulate a flow around a VAWT in order to comprare OF results with FLUENT results, but OF Torque in three times less than FLUENT one. Could you help me? I set realizablekE...

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