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Setting initial amount of ideal gas

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Old   November 2, 2007, 09:35
Default Setting initial amount of ideal gas
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David
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I am studying ideal gas flow in a closed reactor(no inlet or outlet). It is possible to define the gas properties and several T boundary conditions. However, how can I specify the mass that is enclosed in the reactor(I cant find any option that allows me to define initial pressure or initial density).

Thanks in advance.

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