CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Pressure Drop in outlet Vent (http://www.cfd-online.com/Forums/fluent/49633-pressure-drop-outlet-vent.html)

Abdul October 28, 2008 01:04

Pressure Drop in outlet Vent
 
Dear Friends, If i use 1 for KL in the outlet vent boundary condition, which pressure i have to take for calculating the pressure drop across a duct. I given 1 in view that all the dynamic head will be lost. is this assumption right? can i take static pressure at outlet and total pressure at inlet for calculating the pressure drop?

Thanks in Advance.

John S. October 28, 2008 09:16

Re: Pressure Drop in outlet Vent
 
I think if you're assuming your duct exhausts into a farfield-like condition then a headloss of 1 would be reasonable (e.g. water through a pipe which dumps onto the ground).

Abdul October 28, 2008 13:13

Re: Pressure Drop in outlet Vent
 
Yes john i am doing a similar case. In my case i am exhausting gas into atmosphere. Can i take static pressure at outlet and Total pressure at inlet for calculating pressure drop?

Thanks in advance


All times are GMT -4. The time now is 05:39.