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Old   April 25, 2010, 12:45
Default Force Force-coeffs 3D simulation
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enry is on a distinguished road
Hi all,

I'm doing a 3D simulation on Vertical Axis Wind Turbine. I need to calculate the force on surface. I attached the following lines to my controlDict file.

type forces;
functionObjectLibs (""); //Lib to load
patches (blades); // change to your patch name
rhoName rhoInf;
rhoInf 1.225; //Reference density for fluid
CofR (0 0 0); //Origin for moment calculations
outputControl timeStep;
outputInterval 1;
// rhoInf - reference density
// CofR - Centre of rotation
// dragDir - Direction of drag coefficient
// liftDir - Direction of lift coefficient
// pitchAxis - Pitching moment axis
// magUinf - free stream velocity magnitude
// lRef - reference length
// Aref - reference area
type forceCoeffs;
functionObjectLibs ("");
patches (blades);
rhoName rhoInf;
rhoInf 1.225;
CofR (0 0 1);
liftDir (0 1 0);
dragDir (1 0 0);
pitchAxis (1 0 0);
magUInf 6;
lRef 1;
Aref 1;

outputControl timeStep;
outputInterval 1;

If the model is 2D no errors appear on the screen, but when I run a 3D simulation appear the following error:

*** glibc detected *** turbDyMFoam: corrupted double-linked list: 0x088466f8 ***
======= Backtrace: =========
/home/enrico/OpenFOAM/ThirdParty/gcc-4.3.1/platforms/linux/lib/ )[0xb5afb61d]
turbDyMFoam(_ZNK4Foam11regIOobject11writeObjectENS _8IOstream12streamFormatENS1_13versionNumberENS1_1 5compressionTypeE+0xcd)[0x8058ee1]
======= Memory map: ========
[..] etc etc etc etc etc etc etc etc etc etc etc etc etc etc etc etc etc etc etc etc

Can anybody help me?
Thanks in advance.
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Old   July 14, 2011, 09:41
Default 3d VAWT
Join Date: Feb 2010
Posts: 82
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desert_1250 is an unknown quantity at this point
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Hi herman, i hope that you are well
i have some question a bout 3d VAWT. i can simulate 2d VAWT with 3 bldes with GGI interface successfully; and now i wanna simulate 3 dimentional of it. would you guide me how perform it? would you send me any documention a bout 3d simulation. my experience a bout 3d dimention in OpenFOAMis very low.
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