how can present data of pollutant in ppm, with ansys cfx?

LA17 · December 10, 2013, 08:43

i am using ANSYS CFX 14, to simulate the CO2 dispersion in a domain of 500m x 500m and over buildings, my question is about how can present the data contours for CO2 concentrations in ppm (part per million), now i can presentthem only in microgram/m3?
thank you

ghorrocks · December 10, 2013, 17:59

I suspect CFX does not have the conversion to ppm built in. Then define a new variable in CFD-Post with a CEL expression which does the conversion and then you can view it like any other variabel in CFD-Post.

LA17 · December 11, 2013, 05:52

thank you ghorrocks, i will try this manner

December 10, 2013, 08:43	how can present data of pollutant in ppm, with ansys cfx?	#1
LA17 New Member lakhdar aidaoui Join Date: Oct 2013 Posts: 2 Rep Power: 0	i am using ANSYS CFX 14, to simulate the CO2 dispersion in a domain of 500m x 500m and over buildings, my question is about how can present the data contours for CO2 concentrations in ppm (part per million), now i can presentthem only in microgram/m3? thank you

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December 10, 2013, 17:59		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,871 Rep Power: 144	I suspect CFX does not have the conversion to ppm built in. Then define a new variable in CFD-Post with a CEL expression which does the conversion and then you can view it like any other variabel in CFD-Post.

December 11, 2013, 05:52		#3
LA17 New Member lakhdar aidaoui Join Date: Oct 2013 Posts: 2 Rep Power: 0	thank you ghorrocks, i will try this manner