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Old   April 18, 2013, 19:31
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Hi to all,
I have a simple question about the transport properties of atmosphere. Why atmospheric rho and nu are respectively 1 and 1,48e-5 and not 1,225 and 1,79e-5?

thank to all
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Old   April 19, 2013, 05:07
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Niels Gjoel Jacobsen
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Hi,

I you are using a flow solver, where the equations are normalised by the density, then it has no effect (besides for runTime- and post-processing), which value you specify.

Please note that nu is the kinematic molecular viscosity and not the dynamic molecular viscosity.

Have a nice weekend,

Niels
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Old   April 19, 2013, 05:20
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hi, this is a serious neglicence...thank you very much for your reply
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Old   April 19, 2013, 05:24
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Sorry, what do you refer to by "serious negligence"; I might be able to elaborate on it?
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Old   April 19, 2013, 05:30
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the neglicence is mine when I exchanged kinematic molecular viscosity with the dynamic molecular viscosity...
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Old   April 19, 2013, 05:42
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OK, no need to elaborate on that )

Good luck,

Niels
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