MassFlowAverage vs MassFlowInt

MissCFD · August 25, 2014, 20:50

Hello everybody,

I would like to know if
MassFlowAverage(variable) = IntMassFlow(variable)/IntMassFlow(1)
For me, these two expressions are the same but I want to make sure

And why averages are always weighted by the mass flow in CFX ?

Thank you !

ghorrocks · August 26, 2014, 05:18

I presume you mean massFlowInt, not IntMassFlow.

Yes, your expressions should be equivalent. Note that you can calculate the massflow directly with massFlow(), you do not need to do massFlowInt(1).

CFX does not always do mass flow averages. It also has length, area and volume averages. You can also weight the average by whatever function you like by writing your own CEL expression.

August 25, 2014, 20:50	MassFlowAverage vs MassFlowInt	#1
MissCFD Senior Member Join Date: Aug 2014 Posts: 160 Rep Power: 11	Hello everybody, I would like to know if MassFlowAverage(variable) = IntMassFlow(variable)/IntMassFlow(1) For me, these two expressions are the same but I want to make sure And why averages are always weighted by the mass flow in CFX ? Thank you !

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August 26, 2014, 05:18		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,728 Rep Power: 143	I presume you mean massFlowInt, not IntMassFlow. Yes, your expressions should be equivalent. Note that you can calculate the massflow directly with massFlow(), you do not need to do massFlowInt(1). CFX does not always do mass flow averages. It also has length, area and volume averages. You can also weight the average by whatever function you like by writing your own CEL expression.