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Old   September 21, 2011, 18:55
Default nu in cavity example
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Bob Beattie
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Hi everyone,

Just to warn you, I'm a complete CFD noob.

Looking over transportProperties file in the cavity example, what do the seven values within the square brackets represent in "nu [ 0 2 -1 0 0 0 0 ] 0.01;" ?

I see there are also seven-value 'dimensions' entries in the 0/U and 0/P files. Are these related to the nu entry above ?

Thanks,
Bob.
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Old   September 22, 2011, 07:14
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Hey Bob

The answer is in section 2.1.1.3 "Physical properties" of the user guide.
http://www.openfoam.com/docs/user/cavity.php
These are the physical units (m^2 / sec)
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Old   September 22, 2011, 07:46
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Bob Beattie
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No, section 2.1.1.3 only details the kinematic viscosity value.

My question was, with the line "nu [ a b c d e f g ] 0.01", what does a -> g mean ?

I do appreciate your help though, so please bear with me.

Bob.
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Old   September 22, 2011, 08:05
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Found it ! Under section 4.2.6

Classic case of RTFM !
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