topic Pressure distribution/separation point for an irregular 2D contour in CFD Forum

Pressure distribution/separation point for an irregular 2D contour

milos28HR3 — Tue, 02 Aug 2022 14:17:45 GMT

Here is a tricky one. I have a bunch of irregularly shaped 2D contours, and I'm able to get the force, pressure, torque, etc. by using Wall Calculator results and selecting the contour.

What I'd like to find out is the flow/BL separation points around the bodies. Is there a way to get the pressure distribution along the irregular contour? While searching the forums, I only found a very old thread discussing something similar, but for a straight edge from what I can tell.

Or if there is an another idea on how I can do this please bring it up. I guess I can eyeball it by looking at Static Pressure and Pressure Coefficient heat maps but it would be really nice if I could figure out the exact distribution, compare the location relative to the stagnation point, etc.

Many thanks.

Re: Pressure distribution/separation point for an irregular 2D contour

milos28HR3 — Thu, 04 Aug 2022 22:29:03 GMT

In case anyone else needs to do this, the method I used was to go to the Point results and set a point at each coordinate where my contour meets a node of the boundary (wall) layer mesh. In the points dialog box set the each point to be Summary type and go to the Decision Center where all your summary points will be listed. Right click on the point "folder" which contains all the points and update the summary sheet. This will produce the table which you can export to a CSV file.

It's fairly tedious but it works. I would help tremendously if we could set the points by clicking, just like with the XY plots so I'll suggest that in the ideas forum.

Re: Pressure distribution/separation point for an irregular 2D contour

CGBenner — Tue, 16 Aug 2022 14:48:01 GMT

@milos28HR3

Thank you so much for replying back with your solution. I marked it so that others can find it in the future if they need it.