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

Particle Tracking

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 24, 2001, 11:27
Default Particle Tracking
  #1
Iain
Guest
 
Posts: n/a
My model is set up as a pipe with an inlet and an outlet. I wish to insert individual particles randomly on the surface of the inlet to investigate the dispersion of them with various changes in the fluid flow. My mesh around the inlet will not be linear across it and therefore if I use the "surface" injection function I will have a majority of the particles released in a certain area.

Is it possible to write a user-defined function to enable the random injection of particles of the same physical properties (and how would I go about doing this?).

The additional problem is that the diameter of the particles I am releasing would be roughly 5% of the pipe diameter, and therefore could not be released all at once, but would have to be done individually.

Any ideas how I might go about this would be very helpful!
  Reply With Quote

Old   October 25, 2001, 09:01
Default Re: Particle Tracking
  #2
Wolfgang
Guest
 
Posts: n/a
Hi Iain, I never did something with user-defined function but I can tell you how to create a plane with a linear distribution of injection points. Create a plane (menu surface). Select the options bounded and Sample Points. Then you can define how many points you want for injection (sample density).

Wolfgang
  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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Blood Damage Modelling via Particle Tracking in a Centrifugal Heart Pump scatman CFX 5 May 5, 2011 07:23
massless particle tracking problem Renold FLUENT 0 January 26, 2011 15:23
Particle Tracking for ion Jun CFX 2 August 31, 2010 08:19
Number density tracking rather than particle tracking Rebecca Main CFD Forum 2 April 23, 2009 12:52
DPM UDF particle position using the macro P_POS(p)[i] dm2747 FLUENT 0 April 17, 2009 01:29


All times are GMT -4. The time now is 10:32.