# How to transform the Cylindrical turbo surface into flat surface in cfd-post?

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 March 16, 2013, 02:06 How to transform the Cylindrical turbo surface into flat surface in cfd-post? #1 New Member   Join Date: Jun 2011 Posts: 14 Rep Power: 8 Sponsored Links Hellow,i am interseted in the velocity of the centrifugal compressor impeller outlet. But,i can't get the flat surface at the outlet of the impeller.I just know to get a turbo surface at the impeller outlet. So,does anyone how to do it in cfd-post? Thank you !!!

 March 16, 2013, 05:51 #2 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 13,724 Rep Power: 106 This sounds like basci post processing and is well covered by the tutorials. Have you done the tutorials?

March 16, 2013, 10:16
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 Originally Posted by ghorrocks This sounds like basci post processing and is well covered by the tutorials. Have you done the tutorials?
YES.But,i don't remmember any tutorials include my problem.Can you give me some tips? Thank you !!!!!

 March 16, 2013, 23:15 #4 New Member   Join Date: Jun 2011 Posts: 14 Rep Power: 8 Does anyone know how to do it? I am hungry to know that. Please!!!!!

 March 17, 2013, 05:45 #5 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 13,724 Rep Power: 106 You can specify a plane over your outlet and draw the velocity over this plane.

March 17, 2013, 10:10
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 Originally Posted by ghorrocks You can specify a plane over your outlet and draw the velocity over this plane.
Yes,i know that . I insert a turbosurface and specify the variable. But ,the plane is cylindrical. What i want is a flat plane. So,my problem is to transform the cylindrical into a flat plan. Do you really understand what i want to do?

 March 17, 2013, 18:11 #7 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 13,724 Rep Power: 106 No, I do not understand what you want to do. Do you want to put a flat plane through your domain, or do you want to take the existing cylindrical section and map it to a flat surface? Or something else?

 March 17, 2013, 22:42 #8 New Member   Join Date: Jun 2011 Posts: 14 Rep Power: 8 I want to take the existing cylindrical section and map it to a flat surface. I will show you some pictures which is the experimental result. I want to compare my numerical result to it . Last edited by sunset; March 17, 2013 at 23:03.

 March 18, 2013, 06:35 #9 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 13,724 Rep Power: 106 I cannot think of a way of doing this all in CFD-Post. I would export the data from your cylindrical surface and plot it using an external package, like matlab, excel (if you must), python, tecplot or whatever you wish.

 March 18, 2013, 07:38 #10 New Member   Join Date: Jun 2011 Posts: 14 Rep Power: 8 Thank you for your advice. I am going to use tecplot.

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