Extracting data from a contour at various locations

bigcon · February 6, 2018, 10:51

Hi all,

I'm relatively new to CFX and I have a question regarding obtaining data from results.
I sketched an airfoil in geometry, applied the meshing and setup and ran the solution. I now have results as per the image below.
What I would like to do next is pull velocity and pressure data from various points along the airfoil. What's the best way to do this (add contours)?

Thanks.

ghorrocks · February 6, 2018, 16:48

Define your points on the airfoil. This can be done many ways. Then go file/export and get a CSV file, or use the points in the calculation spreadsheet tab, or use the points in CEL expressions. CFD-Post is quite flexible and can process the data in many ways.

Gert-Jan · February 6, 2018, 17:08

If you want to extract pressure along the air foil, I would suggest to create a polyline as a boundary intersection. There select, the airfoil and the plane that you currently use to plot velocity.

If you have done that, you will obtain a line that you can use to plot pressure. Velocity will be zero, since you're on the wall. (with Hybrid values)

February 6, 2018, 10:51	Extracting data from a contour at various locations	#1
bigcon New Member Conor Join Date: Oct 2017 Posts: 1 Rep Power: 0	Hi all, I'm relatively new to CFX and I have a question regarding obtaining data from results. I sketched an airfoil in geometry, applied the meshing and setup and ran the solution. I now have results as per the image below. What I would like to do next is pull velocity and pressure data from various points along the airfoil. What's the best way to do this (add contours)? Thanks.

February 6, 2018, 16:48		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,692 Rep Power: 143	Define your points on the airfoil. This can be done many ways. Then go file/export and get a CSV file, or use the points in the calculation spreadsheet tab, or use the points in CEL expressions. CFD-Post is quite flexible and can process the data in many ways. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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February 6, 2018, 17:08		#3
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,823 Rep Power: 27	If you want to extract pressure along the air foil, I would suggest to create a polyline as a boundary intersection. There select, the airfoil and the plane that you currently use to plot velocity. If you have done that, you will obtain a line that you can use to plot pressure. Velocity will be zero, since you're on the wall. (with Hybrid values)