How to plot radial velocity in CFX 12.1

Jerrica · September 4, 2013, 08:16

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

brunoc · September 4, 2013, 15:35

- 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.

Jerrica · September 4, 2013, 20:42

Oh, Thank you very much! I got it

A.farid · February 11, 2015, 09:42

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

brunoc · February 11, 2015, 10:54

How are you calculating Q, A and the numerical value?

Also, how different?

A.farid · February 11, 2015, 11:33

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

September 4, 2013, 08:16	How to plot radial velocity in CFX 12.1	#1
Jerrica 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

February 11, 2015, 11:33	How to plot radial velocity in CFX 12.1	#6
A.farid 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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September 4, 2013, 15:35		#2
brunoc 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
Jerrica 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
A.farid 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
brunoc 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?