Setting Pressure in FLUENT

sampathevs · August 8, 2013, 02:21

Hello Fluent users,

If my operating presure is 0.3 Mpa, how and what should i set my initial pressure at inlet boundary condition and gauge pressure's at outlet condition ?

If i static pressure is 98,000 Pa at outlet, how and what should be the inlet and outlet pressure conditions in fluent.

I am confused with FLUENT pressure settings. Please help me how to understand these pressure's in FLUENT

Thanks and Regards
-- Sampath Emani

flow_CH · August 8, 2013, 08:52

Absolute pressure=gauge pressure+operating pressure
Total pressure=static+dynamic

If your model is on nature pressure you can use default in operating pressure and 0 for gauge pressure. In this situation your model is nature with 101325 pa pressure.

sampathevs · August 10, 2013, 02:19

Thank you saeed. Your information helped a lot .

August 8, 2013, 02:21	Setting Pressure in FLUENT	#1
sampathevs Member EMAVI V SURYA SAMPATH Join Date: Aug 2011 Location: Malaysia Posts: 85 Rep Power: 15	Hello Fluent users, If my operating presure is 0.3 Mpa, how and what should i set my initial pressure at inlet boundary condition and gauge pressure's at outlet condition ? If i static pressure is 98,000 Pa at outlet, how and what should be the inlet and outlet pressure conditions in fluent. I am confused with FLUENT pressure settings. Please help me how to understand these pressure's in FLUENT Thanks and Regards -- Sampath Emani

August 8, 2013, 08:52		#2
flow_CH Senior Member FHydro Join Date: Jan 2013 Posts: 197 Rep Power: 13	Absolute pressure=gauge pressure+operating pressure Total pressure=static+dynamic If your model is on nature pressure you can use default in operating pressure and 0 for gauge pressure. In this situation your model is nature with 101325 pa pressure. sampathevs likes this.

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August 10, 2013, 02:19		#3
sampathevs Member EMAVI V SURYA SAMPATH Join Date: Aug 2011 Location: Malaysia Posts: 85 Rep Power: 15	Thank you saeed. Your information helped a lot .