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

Injection

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 9, 2007, 03:52
Default Injection
  #1
Daniel
Guest
 
Posts: n/a
Hello,

I am trying to model the erosion in a 90 degree elbow. However I am having difficulties with applying injections. When I set an injection I then iterate the programme, but when I go to Report - DPM - sample, FLUENT informs me that all of my particles are incomplete. What does this mean?

Please can you help,

Thank you Daniel
  Reply With Quote

Old   March 9, 2007, 13:07
Default Re: Injection
  #2
Allan Walsh
Guest
 
Posts: n/a
When you graphically track the particles, what happens? Do they stop in the middle of the fluid domain?

You should be able to increase the number of time steps or increase the step length (in the model->DP set-up) to fix this.
  Reply With Quote

Old   March 9, 2007, 13:15
Default Re: Injection
  #3
Daniel
Guest
 
Posts: n/a
Hi Allan,

Thank you for your help. The particles do not even enter the flow for some reason. Do I have to set the solver to a unsteady time domain?

Thanks
  Reply With Quote

Old   March 9, 2007, 16:12
Default Re: Injection
  #4
kk
Guest
 
Posts: n/a
1.check you inlet 'escape' or 'reflect'? 2.do as Allan said, increase the steps.
  Reply With Quote

Old   March 10, 2007, 01:58
Default Re: Injection
  #5
SA
Guest
 
Posts: n/a
ll
  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
surface injection or point injection? sukura_1984 FLUENT 0 September 2, 2009 09:26
Urgent help needed with spray injection nick CD-adapco 14 June 29, 2008 18:48
On DPM injection properties. akr FLUENT 4 October 23, 2006 10:54
DPM, UDF, Injection Type Zhang FLUENT 0 June 8, 2005 15:51
using injection file and parallel process Cindy Jones FLUENT 0 January 23, 2003 12:40


All times are GMT -4. The time now is 07:54.