CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Main CFD Forum

Tangential velocity - Theoretical and the one used in different CFD softwares

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 29, 2012, 06:58
Default Tangential velocity - Theoretical and the one used in different CFD softwares
  #1
New Member
 
Mahesh
Join Date: Dec 2010
Posts: 9
Rep Power: 6
maheshraj is on a distinguished road
Different velocity components in cylindrical coordinate are
(1) Radial velocity - u
(2) Tangential velocity - v
(3) Axial velocity - w

But the way tangential velocity defined in softwares like star-CCM+ is as follows

Tangential velocity = square root (u square + v square)
or, = sqrt(u2+v2).

Which one is the correct interpretation?
maheshraj is offline   Reply With Quote

Old   October 29, 2012, 14:34
Default
  #2
Senior Member
 
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 1,581
Rep Power: 20
FMDenaro will become famous soon enough
Quote:
Originally Posted by maheshraj View Post
Different velocity components in cylindrical coordinate are
(1) Radial velocity - u
(2) Tangential velocity - v
(3) Axial velocity - w

But the way tangential velocity defined in softwares like star-CCM+ is as follows

Tangential velocity = square root (u square + v square)
or, = sqrt(u2+v2).

Which one is the correct interpretation?

(2) should be the azimuthal velocity ...
FMDenaro is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 20:57.