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-   -   gas(same density with air) dispersion in the air ? (http://www.cfd-online.com/Forums/openfoam/69802-gas-same-density-air-dispersion-air.html)

panda60 November 5, 2009 06:42

gas(same density with air) dispersion in the air ?
 
Dear all:
I want to simulate one gas (has the same density with air) disperses in the air ,which model should I use ?
In this forum, somebody said there are two methods, one is using Combustion model without reaction, another is solve another scalar transport equation.
So I think using RAS model and solving another scalar transport equation is better, because I am newer , How could I do this ? If I should write my own solver ?
Thank you very much.


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