mixing cup temperature

gtheo · June 23, 2011, 10:32

Hello,

I want to calculate the mixing cup temperature - Tm=(1/umean*A)*<integral>(uT dA) - at a cross section (plane) of a rectangular duct. I have the velocity and temperature profile on the plane. Any suggestions on how to calculate the integral on the plane?

gtheo · June 23, 2011, 10:33

I meant the velocity and temperature FIELD.

ghorrocks · June 23, 2011, 18:59

This is easy. In CFD-Post create a user variable which is u*T. Then use the function calculator to get the area integral of this user variable over the area you define.

jtipton2 · June 24, 2011, 16:21

I believe you can also use massFlowAve(Temperature)@<plane name> to achieve the same calculation.

June 23, 2011, 10:32	mixing cup temperature	#1
gtheo New Member George Theo Join Date: Apr 2011 Posts: 13 Rep Power: 4	Hello, I want to calculate the mixing cup temperature - Tm=(1/umeanA)<integral>(uT dA) - at a cross section (plane) of a rectangular duct. I have the velocity and temperature profile on the plane. Any suggestions on how to calculate the integral on the plane?

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June 23, 2011, 10:33		#2
gtheo New Member George Theo Join Date: Apr 2011 Posts: 13 Rep Power: 4	I meant the velocity and temperature FIELD.

June 23, 2011, 18:59		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 7,006 Rep Power: 60	This is easy. In CFD-Post create a user variable which is u*T. Then use the function calculator to get the area integral of this user variable over the area you define.

June 24, 2011, 16:21		#4
jtipton2 New Member Joseph Tipton Join Date: Jun 2010 Posts: 11 Rep Power: 4	I believe you can also use massFlowAve(Temperature)@<plane name> to achieve the same calculation.