CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

vorticity in pipe flow

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

LinkBack Thread Tools Display Modes
Old   January 28, 2014, 05:47
Post vorticity in pipe flow
New Member
Shahzad Munir
Join Date: Feb 2012
Posts: 14
Rep Power: 7
shahzad_munir is on a distinguished road
Dear All,
I am using PIV data for a pipe flow in matlab to calculate vorticity. After reading PIV data in matlab, it appears to be of these values. x=<39*31 double>, y=<39*31d ouble>,u=<39*31*204 double>,v=<39*31*204 double>. Now when I try to use curl command it gives me a message "U,V must all be a 2D arrays."
I have also calculated partial derivatives of u and v like this [dudx,dudy] = gradient(u,h);[dvdx,dvdy] = gradient(v,h). Do I just have to subtract dvdy-dudx to get vorticity? Again it will appear of value this vorticity=<39*31*204 double>. Please guide.
shahzad_munir 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
Turbulence intensity in fully devloped pipe flow - Reference Shocktrain Main CFD Forum 0 October 14, 2010 06:58
Reverse Flow at Rotating Pipe Outlet vismech STAR-CCM+ 1 August 11, 2009 10:38
About Turbulence Intensity (Pipe flow assimilated) gRomK13 Main CFD Forum 1 July 10, 2009 03:11
transform navier-stokes eq. to euler-eq. pxyz Main CFD Forum 37 July 7, 2006 08:42
stepped pipe flow Tom Cloutier Main CFD Forum 0 April 20, 2003 13:19

All times are GMT -4. The time now is 01:37.