CFD Online Logo CFD Online URL
Home > Forums > CFX

Vorticity, swirl etc.

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

LinkBack Thread Tools Display Modes
Old   September 26, 2014, 03:11
Default Vorticity, swirl etc.
Join Date: Mar 2014
Location: Czech Republic
Posts: 53
Rep Power: 3
Jiricbeng is on a distinguished road
I would like to monitor a variable that would give me an answer to how much fluid rotates in a pipe. Lets say the pipe is in the X direction and positive direction of flow is in X+. And the fluid little bit rotates around X axis. I created cross-section perpendicular to the X direction, and I want to monitor some variable corresponding with the fluid rotation.
Neither on web nor in help I cant find any reasonable explanation of velocity.swirling normal, velocity.swirling normal X, velocity.swirling strength, velocity.swirling vector etc. I only found out what velocity.curl is. However I am still not quite sure about it, as in a pipe where I have nearly no rotation, velocity.curl gives much higher values than velocity.curl X,Y,Z.

Thank in advance!
Jiricbeng is offline   Reply With Quote


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Quantifying the swirl in CFX, Swirl Number/Swirl Angle tauqirnawaz CFX 22 May 2, 2012 23:48
vorticity boundary condition bearcharge Main CFD Forum 0 May 14, 2010 11:32
Quantifying Swirl Ianto Main CFD Forum 0 April 27, 2009 10:54
vortex, vorticity, swirl, helicity lhb Main CFD Forum 2 January 13, 2002 13:32
about swirl and vorticity Junseok Kim Main CFD Forum 2 November 1, 2000 18:46

All times are GMT -4. The time now is 17:58.