CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Programming & Development

LPT random walk

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 10, 2010, 00:52
Default LPT random walk
  #1
Member
 
edison
Join Date: May 2009
Location: Australia
Posts: 33
Rep Power: 8
Edison_Ge is on a distinguished road
I want to use Lagrangian particle and stochasitc trasport equation to simulate passive scalar tranportation. But I don't know how to incorporate effactive diffusivity from turbulece model to partciel. Can somebody help?
How can I let particel read turbulence->nuEff()?
Edison_Ge is offline   Reply With Quote

Old   September 10, 2010, 12:29
Default
  #2
Member
 
edison
Join Date: May 2009
Location: Australia
Posts: 33
Rep Power: 8
Edison_Ge is on a distinguished road
I achieved it by creating a volScalarField nuEff in createField.H and then in the solver assign turbulence->nuEff() to the nuEff field. In this way, the cloud can take the nuEff field as a member and then interpolate it to the particle location.
It seems to work, but is there a more elegant way of doing it ?
Edison_Ge is offline   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
Random point inside the mesh filipe OpenFOAM Programming & Development 0 October 16, 2009 11:24
Changing area with a random value of pressureinlet M-Ray FLUENT 0 May 16, 2008 02:48
Recognizing a random signal cfd_newbie FLUENT 3 January 10, 2008 18:26
Could Fluent simulate random process? David FLUENT 0 September 6, 2002 10:49
Random walk models Hesham El-Batsh Main CFD Forum 3 August 12, 1999 11:22


All times are GMT -4. The time now is 15:41.