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-   -   Pressure field in atmosphere (http://www.cfd-online.com/Forums/fluent/69911-pressure-field-atmosphere.html)

Luc3er November 9, 2009 08:07

Pressure field in atmosphere
 
Hi,

Im modelling the atmosphere in FLUENT. I want to obtain an equilibrium solution for the temperature, pressure an density distribution.

I think the main problem is to set the pressure distribution. The temperature distribution is as follow:

T(z)=288.16-6.5e-3*z

But when I set the atmosphere pressure field
P(z)=101325*(1-2.26e-6*z])^52.42
it doesnt appear to be an equilibrium solution. I think it would be due to the hydrostatic pressure. Im not sure how to initialize the pressure field.

The BC are Pressure Outlet with the same distributions.

Can anyone help me?

Thanks in advance


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