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inlet and outlet boundary condition for turbomachinery solution

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Old   July 31, 2009, 00:50
Smile inlet and outlet boundary condition for turbomachinery solution
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mazda
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Hi friends
i want to solve a 3D isolated rotor of a compressor with "COODLES". i use fixedValue for velocity and zeroGradient for pressure in inlet. in the outlet extrapolatedOutlet boundary condition is used.
i want to use "radial equilibrium equation" as a boundary condition for outlet but it seems that OpenFoam has not this boundary condition.
i will be so thankfull for your help
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Old   August 12, 2009, 02:26
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Gerrie
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of my (third) attempt at an approximate radial equilibrium outflow boundary condition. I am also new to OpenFOAM (2 weeks), and I also dearly needed such a boundary condition. It is not perfect, you have to tune it a bit by playing with the input options, but for my application of interest (swirling flow in an annulus) it works quite well. If it suits your needs, let me know.

:-] GDT
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File Type: pdf RadialEquilibriumBC3.pdf (83.1 KB, 195 views)
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Old   August 15, 2009, 11:14
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mazda
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dear thiart, i am so thankful for your help. so thankful.
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