Energy balance (buoyancy)

antonio22 · April 22, 2011, 09:31

Good day everyone.
I have a question. I am creating a "chimney effect" in switchgear by Fluent buoyancy driven flow. Menu Report/fluxes shows this energy balance:

Wall_Heat_Flux +160 W
Convection -12 W
Pressure_Out_Flow -120 W
Pressure_In_Flow -28 W (!!!!)

Problem is in the Pressure_In_Flow. Is possible the value MINUS 28 W, when logically there is only a flow into the chimney but Report says that there is 28 W out of system.

Thanks for answers;-)

antonio22 · April 22, 2011, 09:34

Do you have any explanation?

gaurav_1guru · February 17, 2012, 11:43

dear antonio can i have your case study for studying as i am a student working on temperature rise test in busbar in fluent...
will you be able to help me..

April 22, 2011, 09:31	Energy balance (buoyancy)	#1
antonio22 New Member antonin malinio Join Date: Mar 2011 Posts: 4 Rep Power: 15	Good day everyone. I have a question. I am creating a "chimney effect" in switchgear by Fluent buoyancy driven flow. Menu Report/fluxes shows this energy balance: Wall_Heat_Flux +160 W Convection -12 W Pressure_Out_Flow -120 W Pressure_In_Flow -28 W (!!!!) Problem is in the Pressure_In_Flow. Is possible the value MINUS 28 W, when logically there is only a flow into the chimney but Report says that there is 28 W out of system. Thanks for answers;-) Last edited by antonio22; April 22, 2011 at 17:06.

April 22, 2011, 09:34		#2
antonio22 New Member antonin malinio Join Date: Mar 2011 Posts: 4 Rep Power: 15	Do you have any explanation? Last edited by antonio22; April 22, 2011 at 17:03.

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February 17, 2012, 11:43		#3
gaurav_1guru New Member guru Join Date: Jan 2012 Posts: 9 Rep Power: 14	dear antonio can i have your case study for studying as i am a student working on temperature rise test in busbar in fluent... will you be able to help me..