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Forum: OpenFOAM

February 9, 2011, 12:37

Replies: 16

airfoil study

Views: 2,072

Posted By salvoblack

felix, i sent you a private message

felix, i sent you a private message

Forum: OpenFOAM

February 9, 2011, 11:48

Replies: 16

airfoil study

Views: 2,072

Posted By salvoblack

but the strange thing is that if i use the...

but the strange thing is that if i use the exemplum of the naca 0006 i have no problems, but if i replace the mesh i have these absurd values.
i don't change anything about the equation and the...

Forum: OpenFOAM

February 9, 2011, 11:18

Replies: 16

airfoil study

Views: 2,072

Posted By salvoblack

ok this is the file

ok
this is the file

Forum: OpenFOAM

February 9, 2011, 11:05

Replies: 16

airfoil study

Views: 2,072

Posted By salvoblack

what do you mean for log file?? fvscheme ...

what do you mean for log file??

fvscheme

ddtSchemes
{
default steadyState;
}

Forum: OpenFOAM

February 9, 2011, 10:27

Replies: 16

airfoil study

Views: 2,072

Posted By salvoblack

this is absurd. 1)i've taken a new case from...

this is absurd.
1)i've taken a new case from this site : http://www.cfd-online.com/Forums/openfoam-solving/84125-negative-drag-coefficient.html
2)i just replaced the mesh, and put as you said...

Forum: OpenFOAM

February 9, 2011, 10:04

Replies: 16

airfoil study

Views: 2,072

Posted By salvoblack

sorry felixl but i don't understand, i'm really...

sorry felixl but i don't understand, i'm really new with OF
This is what CheckMesh says in the terminal:

Create time

Create polyMesh for time = 0

Time = 0

Mesh stats

Forum: OpenFOAM

February 9, 2011, 09:51

Replies: 16

airfoil study

Views: 2,072

Posted By salvoblack

this is a problem! i use also fluent (with the...

this is a problem!
i use also fluent (with the same mesh, obviously) and in the window "reference values" i put area=1 and length=1 and i have no problems.
how can i see if these values are...

Forum: OpenFOAM

February 9, 2011, 09:31

Replies: 16

airfoil study

Views: 2,072

Posted By salvoblack

thanks felixL, i tried to put nutilda=0,0000716...

thanks felixL, i tried to put nutilda=0,0000716 but i have also in this case values of Cl and Cd too high.
what do you think about about the other boundary conditions???

Forum: OpenFOAM

February 9, 2011, 07:55

Replies: 16

airfoil study

Views: 2,072

Posted By salvoblack

airfoil study

Hi,
I am studying a turbulent flow that involves a laminar profile NLF_0414f.
I have imposed conditions written at the end of the post, but I got to the end of the calculations of the Cl and Cd...

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