CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > CFX

particle tracking

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 5, 2006, 17:12
Default particle tracking
  #1
Gab
Guest
 
Posts: n/a
Hi, all

I am trying to do particle tracking to get a particle residence time distribution. The method I use is:

1. obtain steady state flow field 2.set particle input at inlet(CFX does not allow to set a point source for particles)

number of position=5000 [kg^-1] particle mass flow=0.01[kg s^-1]*step( (t-0.9[s])/1[s] )*step( (1.05[s]-t)/1[s])

3 do transient simulation(CFX10) using steady state solution as initial value, and time step is 1 s

The problem is that, at the montoring point, I got several peaks(particle number rate) at different timesteps . Each peak is very sharp and has same height. This is completely not reasonable

Can someone suggest how to get a residence time distribution curve using particle tracking?

Thanks!

Gab
  Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
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 7 January 8, 2018 01:59
massless particle tracking problem Renold FLUENT 0 January 26, 2011 15:23
Particle Tracking for ion Jun CFX 2 August 31, 2010 09:19
Number density tracking rather than particle tracking Rebecca Main CFD Forum 2 April 23, 2009 13:52
DPM UDF particle position using the macro P_POS(p)[i] dm2747 FLUENT 0 April 17, 2009 02:29


All times are GMT -4. The time now is 02:33.