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

Couple of questions in Fluent

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 24, 2006, 22:09
Default Couple of questions in Fluent
  #1
Vidya
Guest
 
Posts: n/a
Hi,

I want to get the residence time of the fluid inside my model. I'm modeling a fluid flow, and there's no particle injection or any such thing.

However, whenever I go to the Disply- particle tracking- residence time panel, the display and write option are always inactive. How do I activate these buttons? I want to plot the residence in specific areas/ zones in my model.

My second question is about plotting the velocity vectors..... is there any way we can plot the velocity vectors in the XZ, YZ planes such that 0<=Z<=some value.

I mean I want to plot the velocity vectors in the specific plane between 0 and some value. How can I do this?

I was using the surface monitors to monitor the convergence of the variables. For this I drew a rake in the flow field of some dimensions. But the velocity monitor plot for this rake always shows zero and stays there. Is there something wrong in the way I plotted the rake?

Thanks, Vidya

  Reply With Quote

Old   July 25, 2006, 05:43
Default Re: Couple of questions in Fluent
  #2
Vaibhav
Guest
 
Posts: n/a
Hi,

1) you can not use Disply- particle tracking- residence time panel to get residence time as it is activated only when you model particle tracking. you can find out residence time by looking at velocity contours

and rephrase your other ques, i'll possibly give the answers as i couldn't understand the ques
  Reply With Quote

Old   July 25, 2006, 06:04
Default Re: Couple of questions in Fluent
  #3
Boerge
Guest
 
Posts: n/a
> My second question is about plotting the velocity vectors..... is there any way we can plot the velocity vectors in the XZ, YZ planes such that 0<=Z<=some value.

First you need to make a plane where you want to plot your vectors (surface -> plane...). Next, display -> vectors..., choose your plane where the vectors are going to be plotted, choose vector options and select which components of the vector that are going to be plotted, then unhach the auto range option, make sure "clip-to-range" is hatced, type min and max values.

You have to provide more information on the third question.

Regards,

Boerge
  Reply With Quote

Old   July 25, 2006, 16:28
Default Re: Couple of questions in Fluent
  #4
Vidya
Guest
 
Posts: n/a
I meant that I want to monitor the variables (mainly, presure and velocity) along my flow field. So I ceated a rake that spans the flow field and want to plot the variables on it and watch the trend as the computation proceeds. But this always shows a zero value. What could be wrong?

Thanks.
  Reply With Quote

Old   July 25, 2006, 23:02
Default Re: Couple of questions in Fluent
  #5
Vidya
Guest
 
Posts: n/a
Hi,

Can you explain how I can determine the residence time from the velocity contour plots?

Thanks.
  Reply With Quote

Old   July 27, 2006, 02:08
Default Re: Couple of questions in Fluent
  #6
Boerge
Guest
 
Posts: n/a
I relly don't know. Maybe your fluid is at rest?
  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
Fluent jobs through pbs ibnkureshi FLUENT 5 June 9, 2011 13:43
Abaqus - Fluent Coupling WITHOUT MPCCI s.mishra FLUENT 0 May 1, 2011 09:45
Help,I have some questions about UDF of mass diffusivity in fluent apolloking Fluent UDF and Scheme Programming 0 March 20, 2011 12:40
couple of questions to Code_Saturne Developers Ahmed Main CFD Forum 2 May 3, 2009 13:54
couple two walls in fluent - how? JX FLUENT 2 December 26, 2004 19:37


All times are GMT -4. The time now is 15:09.