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

Multiphase particle motion queries

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 14, 2012, 11:00
Default Multiphase particle motion queries
  #1
siw
Senior Member
 
Stuart
Join Date: Jul 2009
Location: Portsmouth, England
Posts: 739
Rep Power: 26
siw will become famous soon enough
Hi,

Some questions about modelling a dispersed solid phase (particles in Lagrangian frame) being transported with a moving fluid (Eulerian frame) that I cannot find the answers:

1. Are there any rules about mesh element sizes in relation to the distance a particle is expected to move in a single time step? Should mesh elements be sized so that (in general) a particle moves no more than 1 element distance per time step.

2. If a CFD code is cell-centred so the density, momentum values etc are stored at cell centres are particles treated as being at 1) any location in an element or 2) are they assumed to also be located at cell centres?

Thanks.

Last edited by siw; February 14, 2012 at 11:06. Reason: Extra info
siw is offline   Reply With Quote

Reply


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
Moving mesh Niklas Wikstrom (Wikstrom) OpenFOAM Running, Solving & CFD 122 June 15, 2014 07:20
Particle tracking in multiphase flow fjalil CFX 3 May 26, 2010 20:41
DPM UDF particle position using the macro P_POS(p)[i] dm2747 FLUENT 0 April 17, 2009 02:29
Multiphase VS Particle Tracking Elisabetta CFX 0 February 5, 2008 07:15
Commercial package for studying particle motion in aerodynamic lenses and nozzle expansions? Susan McCaffery Main CFD Forum 4 February 7, 2000 10:33


All times are GMT -4. The time now is 16:04.