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Outlet Vent Loss Coefficient

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Old   June 24, 2009, 19:15
Default Outlet Vent Loss Coefficient
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Dear All,

I am modeling airflow in a pipe - mass flow inlet and a pressure outlet at the ends of the pipe. Inbetween, I'd like to place an outlet vent, which is to exhaust to the atmosphere.

Would someone have a recommendation what are reasonable values/coefficients for the pressure loss @ the vent? I read the FLUENT manual but couldn't find specific values I could use.
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