# How to plot radial velocity in CFX 12.1

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 September 4, 2013, 08:16 How to plot radial velocity in CFX 12.1 #1 New Member   Jerrica Lee Join Date: Sep 2013 Posts: 7 Rep Power: 12 Can anyone tell me how to plot radial velocity in CFX Post? Thank you I can find the 'rotation velocity' in CFX Post, but don't know how to plot radial velocity

 September 4, 2013, 15:35 #2 Senior Member   Bruno Join Date: Mar 2009 Location: Brazil Posts: 277 Rep Power: 21 - Head to the 'Turbo' tab in CFD-Post. It'll ask you if you want to auto-initialize everything. If you're running a turbomachinery simulation, do it; it not, skip it. - Set your axis of revolution. - Click 'Calculate Velocity Components'. You now have a 'Velocity Radial' variable in Post. Plot it anyway you wish.

 September 4, 2013, 20:42 #3 New Member   Jerrica Lee Join Date: Sep 2013 Posts: 7 Rep Power: 12 Oh, Thank you very much! I got it

 February 11, 2015, 09:42 #4 New Member   a.farid Join Date: Feb 2012 Posts: 14 Rep Power: 14 Hello, When calculating the radial velocity in the exit section of centrifugal impeller using the equation Q/A i found it very differ from its numerical value Can any one tell me why ? Thanks

 February 11, 2015, 10:54 #5 Senior Member   Bruno Join Date: Mar 2009 Location: Brazil Posts: 277 Rep Power: 21 How are you calculating Q, A and the numerical value? Also, how different?

 February 11, 2015, 11:33 How to plot radial velocity in CFX 12.1 #6 New Member   a.farid Join Date: Feb 2012 Posts: 14 Rep Power: 14 Q is the operating condition i choose and A i calculate it using the impeller diameter D and impeller width b And the two method is totally different

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