How to get Pressure Gradient and Density Gradient as Output Variables?

badboyz31 · June 26, 2015, 00:06

Hello CFD Online members. I haven't been using CFX for a while so some of my memory about it already faded.

As I recalled, one could have Density Gradient and Pressure Gradient as additional variables to be post-process in CFD-Post (without using CEL), but I couldn't find it during post-processing, so I figured that I might've missed something.

I have a very faint memory that I have exported density gradient plots once by changing selected variables in Output Control, but this time I couldn't find it.

Was I looking in the right place?

Anyway, how can I tell CFX to have Density Gradient and Pressure Gradient as a variable among the outputs?

Thanks in advance

Lance · June 26, 2015, 02:37

One way is to compute the gradient in cfd-post:
Variables tab, right click - New
method:gradient
gradient of: density

badboyz31 · June 26, 2015, 03:09

Quote:

Originally Posted by Lance

One way is to compute the gradient in cfd-post:
Variables tab, right click - New
method:gradient
gradient of: density

Great, it works, thanks mate.

June 26, 2015, 00:06	How to get Pressure Gradient and Density Gradient as Output Variables?	#1
badboyz31 Member Join Date: May 2013 Posts: 45 Rep Power: 12	Hello CFD Online members. I haven't been using CFX for a while so some of my memory about it already faded. As I recalled, one could have Density Gradient and Pressure Gradient as additional variables to be post-process in CFD-Post (without using CEL), but I couldn't find it during post-processing, so I figured that I might've missed something. I have a very faint memory that I have exported density gradient plots once by changing selected variables in Output Control, but this time I couldn't find it. Was I looking in the right place? Anyway, how can I tell CFX to have Density Gradient and Pressure Gradient as a variable among the outputs? Thanks in advance

June 26, 2015, 02:37		#2
Lance Senior Member Lance Join Date: Mar 2009 Posts: 669 Rep Power: 22	One way is to compute the gradient in cfd-post: Variables tab, right click - New method:gradient gradient of: density soheil_r7 and spalartallmaras like this.

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