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

DPM

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

Reply
 
LinkBack Thread Tools Display Modes
Old   December 1, 2006, 09:21
Default DPM
  #1
ciwli
Guest
 
Posts: n/a
hi, i want to simulate the collision of particles from two injections with steay model. i think i have to write a UDF, can sb give me a idea , how i can write it, coz i just begin to learn UDF
  Reply With Quote

Old   December 4, 2006, 18:27
Default Re: DPM
  #2
ciwli
Guest
 
Posts: n/a
i think i have to get the concentration in a cell. but in the UDF Help there is only one Injection, how can i get each particle concentration in a cell, some like *pi ?
  Reply With Quote

Old   December 6, 2006, 20:16
Default Re: DPM
  #3
Allan Walsh
Guest
 
Posts: n/a
Have you looked at the example in the UDF manual? I have implemented half-a-dozen other DPM UDFs but the collision one looks very challenging.
  Reply With Quote

Old   December 12, 2006, 01:48
Default Re: DPM
  #4
JSM
Guest
 
Posts: n/a
Hai,

In particle injection, I am using the rosin rammler distribution with surface injection in unsteady state. In this how to vary the number of particles injected per time step. I varied the total mass flow rate. Then also fluent is taking same number of particles per time step.

Any suggestions to resolve this.

With regards, JSM
  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
DPM and UDS mighelone FLUENT 0 June 3, 2011 07:27
DPM modeling Mohsin FLUENT 0 March 31, 2010 22:11
DPM - do the particles affect the liquid? Nikhil Dani FLUENT 0 January 1, 2009 12:58
slow after mesh for enhanced wall treat DPM joshkemp FLUENT 0 May 1, 2007 17:20
compatibity LES with DPM Alex Munoz FLUENT 0 March 26, 2003 22:13


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