Monitor Averaged Value of a Quantity on a Surface

newbie384 · March 3, 2014, 16:05

In Fluent, we can define a plane or surface and monitor the convergence of the average value (e.g. mass weighted average, area weighted average, etc) of a quantity during the calculation. Can we do the same thing in CFX? I could only find monitor point in CFX and that is only monitoring the convergence of the value of the quantity at a particular point (not average across a surface).

ghorrocks · March 3, 2014, 16:38

Yes, you can do this. Assuming the surface object you want to average over is called "Surface", then set a monitor point with the CEL expression:
areaAve(u.residual)@Surface

I think that will work. I might have the wrong variable name for the residual, better check that.

March 3, 2014, 16:05	Monitor Averaged Value of a Quantity on a Surface	#1
newbie384 Member Join Date: Mar 2013 Posts: 68 Rep Power: 13	In Fluent, we can define a plane or surface and monitor the convergence of the average value (e.g. mass weighted average, area weighted average, etc) of a quantity during the calculation. Can we do the same thing in CFX? I could only find monitor point in CFX and that is only monitoring the convergence of the value of the quantity at a particular point (not average across a surface).

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March 3, 2014, 16:38		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,700 Rep Power: 143	Yes, you can do this. Assuming the surface object you want to average over is called "Surface", then set a monitor point with the CEL expression: areaAve(u.residual)@Surface I think that will work. I might have the wrong variable name for the residual, better check that.