change angle of attack in aerofoil
Hi, I would like to know if it is possible to change the angle of attack of an aerofoil in OpenFOAM. I've been told that it's possible in Fluent so I guess there must be something similar in OpenFOAM. Thanks!
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Hi,
I am not an experienced user of OpenFOAM. But, I think It is just a matter of changing your B.Cs in the OpenFOAM. Good luck |
angle of attack
hi nicchani
Hi, yes it is possible to change the angle of attack of an aerofoil in OpenFOAM too like fluent. just change in the 0 directory there is file named called velocity "u", just change according to your velocity like 51*cos(2) along x direction and 51*sin(2) along y direction as u required for different angle of attacks ( example i have given 2 is the angle of attack) calculate from these cos and sin put those values in the file "u".... |
ok, thanks to both of you for your help! I will try the sin and cos method :)
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hey naveen,
why is 51 there in the equation ? |
change angle of attack in aerofoil
dear deepaktbabu,
It is the velocity what you are taking from Mach number...just i have given velocity reference for mach number at 0.3...you can give ur velocity depends on ur mach number.. |
thank you :)
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I am not quiet sure because one will be bigger and one will be lower for example the cos bit is bigger than the sin bit.......
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Quote:
what should we write for liftDir and dragDir in controlDict according to their angles? |
Angle of attack for LES in openfoam using pointwise mesh
/*--------------------------------*- C++ -*----------------------------------*\
========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 8 \\/ M anipulation | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volVectorField; object U; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 1 -1 0 0 0 0]; internalField uniform (0 0 0); boundaryField { inlet { type turbulentInlet; referenceField uniform (10 0 0); fluctuationScale (0.02 0.01 0.01); value uniform (10 0 0); } outlet { type inletOutlet; inletValue uniform (0 0 0); value uniform (0 0 0); } upperWall { type noSlip; } lowerWall { type noSlip; } frontAndBack { type empty; } } // ************************************************** *********************** // if this my u file should i put values ucos2 and usin2 for AOA=2? in the highlighted part only ? |
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