Volume flow rate

hyderkhan74 · July 22, 2012, 11:19

Hi
I study the natural ventilation in house and I need to find the volume flow rate through openings ,I tried to use surface Integral for the velocity on the interface surface between the outside air and the room air ,but the problem that the results show unrealistic high values for the flow rate. I checked the domain, the physics of the problem, etc. However could not find anything wrong. So I hope you can help me in this issue ?

With best regards

ztdep · July 22, 2012, 20:22

Be sure to validate your code first.

hyderkhan74 · July 23, 2012, 04:57

Dear ztdep thank you for your reply ,the code i use it is software star ccm+ which is well validate .

ztdep · July 23, 2012, 09:08

do you have experimental data to compare with.
check your turbulent model and the grid system.

July 22, 2012, 11:19	Volume flow rate	#1
hyderkhan74 Member hayder Join Date: Jan 2012 Posts: 32 Rep Power: 14	Hi I study the natural ventilation in house and I need to find the volume flow rate through openings ,I tried to use surface Integral for the velocity on the interface surface between the outside air and the room air ,but the problem that the results show unrealistic high values for the flow rate. I checked the domain, the physics of the problem, etc. However could not find anything wrong. So I hope you can help me in this issue ? With best regards

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July 22, 2012, 20:22		#2
ztdep Senior Member p ding Join Date: Mar 2009 Posts: 427 Rep Power: 19	Be sure to validate your code first.

July 23, 2012, 04:57		#3
hyderkhan74 Member hayder Join Date: Jan 2012 Posts: 32 Rep Power: 14	Dear ztdep thank you for your reply ,the code i use it is software star ccm+ which is well validate .

July 23, 2012, 09:08		#4
ztdep Senior Member p ding Join Date: Mar 2009 Posts: 427 Rep Power: 19	do you have experimental data to compare with. check your turbulent model and the grid system.