# velocity components in cylindrical coordinates

 Register Blogs Members List Search Today's Posts Mark Forums Read

 March 31, 2009, 04:11 velocity components in cylindrical coordinates #1 New Member   Mattia Join Date: Mar 2009 Posts: 9 Rep Power: 9 Dear all, good morning. I am simulating the flow within a vaned diffuser which is downstream of a radial impeller. I want to calculate the flow angle alpha5 at the diffuser outlet (station 5 in my case): alpha5=tan(C_tang_5/C_rad_5), where C_tang and C_rad are the tangential and radial components of absolute velocity C, respectively. At station 5 I can of course extrapolate C_5 in CFX-post by means of Tools --> Function calculator (and I usually calculate the mass flow averaged value). I can also find the velocity components of the absolute velocity in cartesian coordinates. As you can see from above, in reality I am interested in the velocity components expressed in cylindrical coordinates: is there any method/way to find/calculate them? Thanks a bunch. Kind regards, Mattia.

 March 31, 2009, 04:19 #2 Member   Join Date: Mar 2009 Posts: 44 Rep Power: 9 In post, go to the turbo tab. After defining the axis of rotation you can let post calculate the cylindrical components, which then appear as normal variables.

 March 31, 2009, 08:22 #3 New Member   Mattia Join Date: Mar 2009 Posts: 9 Rep Power: 9 Thank you! It seems working! Kind regards.

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post Rikio CFX 2 February 23, 2009 05:37 Felix CFX 3 February 6, 2009 08:34 lcw FLUENT 2 October 5, 2006 04:49 Kshitij FLUENT 1 February 10, 2006 04:58 R P CFX 2 October 26, 2004 02:13

All times are GMT -4. The time now is 09:32.