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-   -   Atmospheric pressure gradient (http://www.cfd-online.com/Forums/fluent/69650-atmospheric-pressure-gradient.html)

Luc3er October 29, 2009 12:50

Atmospheric pressure gradient
 
Hi,

I am trying to simulate the rise of an humid thermal in the atmosphere.

Previously, i want to obtain the solution for the pressure that Fluent gives for a thermal stratified atmosphere.

The material is air (ideal gas). Th left boundary is symmetri. The bottom is a wall. I donīt know how boundary set in the right and the top side (outflow is not available with commpresible flow).

The temperature in the domain is: T(z)=288.15-6.5*z/1000

I am simulating with a RNG k-e turbulent model.

In summary, i need to obtain the pressure gradient in the atmosphere for this temperature gradient. How can i do it?

thanks in advance

Luc3er October 30, 2009 07:46

In summary, i just wanīt to obtain the hydrostatic pressure.

Plz help


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