CFD Online Logo CFD Online URL
Home > Forums > FLUENT

vortex shedding frequency

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

LinkBack Thread Tools Display Modes
Old   December 27, 2005, 06:36
Default vortex shedding frequency
Posts: n/a
Hi all,

I'am a fluent user and meanwhile doing validation cases on the 3D ahmed body. How can I find the vortex shedding frequency and related strouhal number by cfd. should I have to learn UDF for this reason or is there an easier way? thank a lot

  Reply With Quote

Old   December 30, 2005, 19:31
Default Re: vortex shedding frequency
Posts: n/a
Take the FFT (located in the plot drop down menu) of the Cd history. The peak freq. should be twice the shedding frequency. Then plug 1/2 peak freq. into str.# formula. I've used this method for shedding from normal 2D flat plates and cylinders with success.
  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
vortex shedding frequency naveen OpenFOAM 23 May 17, 2016 08:12
frequency of vortex shedding HaKu Main CFD Forum 3 March 18, 2011 01:00
time step and vortex shedding frequency kevin Main CFD Forum 16 November 19, 2009 07:00
Vortex shedding frequency stays unaltered Nelson Main CFD Forum 3 March 5, 2009 11:04
Frequency of vortex shedding Giuseppe FLUENT 1 January 10, 2006 09:41

All times are GMT -4. The time now is 04:33.