# mixing cup temperature

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 June 23, 2011, 10:32 mixing cup temperature #1 New Member   George Theo Join Date: Apr 2011 Posts: 13 Rep Power: 15 Hello, I want to calculate the mixing cup temperature - Tm=(1/umean*A)*(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?

 June 23, 2011, 10:33 #2 New Member   George Theo Join Date: Apr 2011 Posts: 13 Rep Power: 15 I meant the velocity and temperature FIELD.

 June 23, 2011, 18:59 #3 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,688 Rep Power: 143 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 New Member   Joseph Tipton Join Date: Jun 2010 Posts: 27 Rep Power: 15 I believe you can also use massFlowAve(Temperature)@ to achieve the same calculation.

 October 26, 2016, 17:02 custom field function i #5 New Member   Xiaobing Zhang Join Date: Apr 2014 Posts: 12 Rep Power: 11 build a custom field function in define. input u*T on the panel. get the integral then do the operations you want.

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