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Forum: OpenFOAM Running, Solving & CFD

September 6, 2009, 05:51

Replies: 180

Forces in OF15

Views: 58,754

Posted By nomad

magUInf 55.5 - freestream velocity lRef 0.6 -...

magUInf 55.5 - freestream velocity
lRef 0.6 - chord length of airfoil or diameter of cylinder
Aref 1 - surface area, or chord*span

Forum: OpenFOAM Running, Solving & CFD

September 3, 2009, 20:42

Replies: 180

Forces in OF15

Views: 58,754

Posted By nomad

I'm using SimpleFoam, here's my controlDict file:...

I'm using SimpleFoam, here's my controlDict file:

/*--------------------------------*- C++ -*----------------------------------*\
| ========= | ...

Forum: OpenFOAM Running, Solving & CFD

September 2, 2009, 14:22

Replies: 180

Forces in OF15

Views: 58,754

Posted By nomad

Hey, I'm running OpenFOAM 1.6. The flow looks...

Hey,
I'm running OpenFOAM 1.6. The flow looks reasonable around a symmetric airfoil, but Cl and Cd values are just wrong. Also, solutions don't converge for angled airfoils (5 degrees). I'm running...

Forum: OpenFOAM Running, Solving & CFD

September 1, 2009, 16:51

Replies: 180

Forces in OF15

Views: 58,754

Posted By nomad

incorrect forces on symmetric airfoil

Hi,
I'm trying to calculate forces on a symmetric airfoil. I've set lref to the chord length and Aref to the reference area based on the span (these have been converted from imperial to metric...

Forum: OpenFOAM Running, Solving & CFD

August 28, 2009, 14:28

Replies: 180

Forces in OF15

Views: 58,754

Posted By nomad

It works after adding the following lines : ...

It works after adding the following lines :

outputControl timeStep;
outputInterval 1;

Forum: OpenFOAM Running, Solving & CFD

August 28, 2009, 13:02

Replies: 180

Forces in OF15

Views: 58,754

Posted By nomad

OF1.6 forces error

Hi, I'm using OpenFOAM 1.6 and trying to calculate the forces on an airfoil. I have the following lines at the end of my controlDict file:

functions
(
forces
{
type forces;
functionObjectLibs...

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