CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Running, Solving & CFD

Particle simulation with transient flow field

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 14, 2013, 20:19
Default Particle simulation with transient flow field
  #1
Member
 
India
Join Date: Oct 2012
Posts: 84
Rep Power: 4
mayank.dce2k7 is on a distinguished road
Hi Foamers,

I am running particle simulation using OF 2.1.1 in triple bifurcation geometries. Until now I used to calculate steady flow field first by running simpleFoam on the geometry then picked the 'U' file from last time folder and placed in '0' folder of particle case and executed icoUncoupledKinematicParcelFoam to solve for particles.

Now I want to set up cases for one way coupled particle simulation with transient flow field. How can I give pre-defined velocity fields in this case?

Regards,
Mayank.
mayank.dce2k7 is offline   Reply With Quote

Old   October 15, 2013, 04:02
Default
  #2
Senior Member
 
Hkon Strandenes
Join Date: Dec 2011
Location: Norway
Posts: 111
Rep Power: 10
haakon will become famous soon enough
If you need to solve a transient particle-transport problem then you need to create your own solver for that purpose. For incompressible flow problems you can use pisoFoam as a basis for your solver, and then inspect the source code for the other Lagrangian solvers to find out what you need to add.

Even tough it is possible to pre-calculate a velocity field and use that with icoUncoupledKinematicParcelFoam, I really do not think that it is a good idea. Doing that require loads of storage and leads to large overheads with respect to I/O, not to mention that you loose the possibility of running coupled fluid-particle simulations.
haakon is offline   Reply With Quote

Old   October 15, 2013, 16:01
Default
  #3
Member
 
India
Join Date: Oct 2012
Posts: 84
Rep Power: 4
mayank.dce2k7 is on a distinguished road
Quote:
Originally Posted by haakon View Post
If you need to solve a transient particle-transport problem then you need to create your own solver for that purpose. For incompressible flow problems you can use pisoFoam as a basis for your solver, and then inspect the source code for the other Lagrangian solvers to find out what you need to add.

Even tough it is possible to pre-calculate a velocity field and use that with icoUncoupledKinematicParcelFoam, I really do not think that it is a good idea. Doing that require loads of storage and leads to large overheads with respect to I/O, not to mention that you loose the possibility of running coupled fluid-particle simulations.
Haakon,

I was also thinking the same regarding storage and overheads. Well, we already have solver available on the forum for calculating transient particle transport.

Regards,
Mayank.
mayank.dce2k7 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
Coupling of drying process and flow simulation franzdrs Main CFD Forum 0 April 29, 2013 14:11
transient, impregnating flow problem fgommer FLUENT 0 February 29, 2012 17:10
Transient analysis of particle flow with Fluid-Structure Interaction (FSI) Julian K. CFX 2 September 15, 2011 15:30
transient simulation of a rotating rectangle icesniffer CFX 1 August 8, 2009 07:25
Expert parameter to stop the fluid flow simulation KK CFX 1 February 25, 2008 17:29


All times are GMT -4. The time now is 13:16.