Pressure at inlet in post different to what I set?

Nineties123 · February 7, 2021, 05:23

Hi,

I've just run a contour on the inlet in CFX post and discovered that the pressure it seems to have is far lower than what I set. All other quantities (temperature, velocity, etc) are fine, but the pressure I set as the reference pressure was 74690Pa with relative pressure everywhere else 0, yet CFX post seems to be suggesting the pressure at the inlet is in fact closer to 134.5 Pascals?

Any help?

ghorrocks · February 7, 2021, 18:10

Please post your output file.

evcelica · February 9, 2021, 19:28

What is the pressure at your outlet?
Out file will of course have this as Glenn requested.

Gert-Jan · February 10, 2021, 04:00

What does Post tell you regarding 'absolute pressure' and 'total preaaure'?
Better share pictures of the variables, and as Glenn mentioned, the output file.

February 7, 2021, 05:23	Pressure at inlet in post different to what I set?	#1
Nineties123 New Member Join Date: Dec 2020 Posts: 14 Rep Power: 5	Hi, I've just run a contour on the inlet in CFX post and discovered that the pressure it seems to have is far lower than what I set. All other quantities (temperature, velocity, etc) are fine, but the pressure I set as the reference pressure was 74690Pa with relative pressure everywhere else 0, yet CFX post seems to be suggesting the pressure at the inlet is in fact closer to 134.5 Pascals? Any help?

February 7, 2021, 18:10		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,857 Rep Power: 144	Please post your output file. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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February 9, 2021, 19:28		#3
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,188 Rep Power: 23	What is the pressure at your outlet? Out file will of course have this as Glenn requested.

February 10, 2021, 04:00		#4
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,913 Rep Power: 28	What does Post tell you regarding 'absolute pressure' and 'total preaaure'? Better share pictures of the variables, and as Glenn mentioned, the output file.