CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Visualization & Post-Processing Software > Tecplot

plottting tangnetial and axial velocity vectors on a plane

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 21, 2017, 15:18
Default plottting tangnetial and axial velocity vectors on a plane
  #1
Senior Member
 
Shamoon Jamshed
Join Date: Apr 2009
Location: Karachi
Posts: 348
Rep Power: 16
Shamoon Jamshed is on a distinguished road
Send a message via Skype™ to Shamoon Jamshed
Hello all,

I am simulating a rotational flow in a pipe whose flow velocity was specified as axial, radial and tangential with axial being the direction of flow in z direction in Fluent.

In Tecplot
-----------
Now when I take this geometry I want to see velocity vectors on plane. Here I do not see radial axial or tangential rather u, v , w as velocity components.
Q1: Do I need to change u,v, w from x,y and z components to w,v,u b/c my z velocity (w-component) is in axial direction. Does tecplot sense z direction as axial by default ?
Q2. Do I need to define in specify equations and write explicitly the equations for axial , radial and tangential velocities?
Shamoon Jamshed is offline   Reply With Quote

Old   December 1, 2017, 14:41
Default
  #2
Senior Member
 
Shamoon Jamshed
Join Date: Apr 2009
Location: Karachi
Posts: 348
Rep Power: 16
Shamoon Jamshed is on a distinguished road
Send a message via Skype™ to Shamoon Jamshed
Any response please?
Shamoon Jamshed is offline   Reply With Quote

Old   December 4, 2017, 14:55
Default
  #3
Member
 
Join Date: May 2013
Posts: 61
Rep Power: 11
novedevon is on a distinguished road
At this point Tecplot does not support direct cylindrical plotting for either spatial or vector coordinates. As such everything must be defined by X,Y,Z and U,V,W. As long as you have defined X,Y,Z as your spacial coordinates (in Plot>Assign XYZ) you should correspondingly define U,V,W as your vector variables (see Plot>Vector>Variables).

Assuming you are interested in vectors on a slice or an existing surface zone, you can use U,V,Wthe either use the default representation or select "Tangent Vectors" (Slice Details>Vectors page or Zone Style>Vectors page) which will show only the tangent component of the vector.

If you only have axial, radial and tangential velocities defined in your input file you will have to use Data>Alter>Specify Equations to calculate U,V and W using the standard conversion equations. And no, Tecplot cannot detect any axial direction by default so that we can be as process neutral as possible.

If you have any followup questions feel free to contact Tecplot support at support@tecplot.com

-Devon Simpson
Tecplot Technical Product Manager
novedevon is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Trackbacks are Off
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 14:02.