CFD Online Logo CFD Online URL
Home > Forums > CFX

Reverse Particle Tracking

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

LinkBack Thread Tools Display Modes
Old   May 14, 2012, 13:07
Default Reverse Particle Tracking
Join Date: Oct 2011
Posts: 56
Rep Power: 7
Shawn_A is on a distinguished road
Is there a way to do reverse particle tracking? I have a situation where I would like to see where the fluid came from that is interacting with my blades. Ideally I would be able to specify a number of points from which I could drop particles into my fluid and then track them backwards in time to determine how much the flow is diverging around my rotor.

Shawn_A is offline   Reply With Quote

Old   May 14, 2012, 18:44
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 13,541
Rep Power: 104
ghorrocks is a jewel in the roughghorrocks is a jewel in the roughghorrocks is a jewel in the rough
You might be able to do this with some advanced post processors such as ensight or Fieldview. Without them I suspect your only choice is to release massless particles as the simulation runs, and in post processing find a particle in the region you want and track it back.

Alternately if the flow is steady state, or the velocity of the flow is high compared to the change in the flow, then you can use normal streamlines and they have an option to integrate backwards.
ghorrocks is offline   Reply With Quote

Old   May 16, 2012, 04:37
Join Date: Mar 2009
Posts: 44
Rep Power: 10
Timon is on a distinguished road
In post you can also filter you're particle tracks based on the location where they end up.
Timon 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
dispersion model with lagragian particle tracking model for incompressible flows eelcovv OpenFOAM Running, Solving & CFD 52 July 24, 2016 19:59
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

All times are GMT -4. The time now is 15:40.