CFD Online URL
[Sponsors]
Home > Forums > FLUENT

Nondimensionalization in FIDAP

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 9, 2007, 22:53
Default Nondimensionalization in FIDAP
  #1
semetay
Guest
 
Posts: n/a
Hello,

I am trying to solve a fluid flow problem associated with laser wel melt pool. Problem includes a fixed free surface, heat flux input. BUOYANCY feature is used, density is specified in Bousinesq form. The problem has a very poor convergence behaviour so I decided to use nondimensionalization. However, now the solver crashes without even trying solving. I checked all the values they seem ok. Reynolds number is around 4 and Prandtl is around .25 for the referans values I used.

Any help will be appreciated.

Regards,

Semetay
  Reply With Quote

Old   August 16, 2007, 11:33
Default Re: Nondimensionalization in FIDAP
  #2
semetay
Guest
 
Posts: n/a
it seems like one of the referans values were way too high so I corrected it and now it runs. But the results I am getting are very different from the ones in the dimensional form. In fact, they are not even close. Any ideas? I used (b) set of equations as mentioned in the nondimensionalization chapter of fidap manual.

thank you...
  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
Fidap to Fluent Ravi FLUENT 3 July 10, 2008 14:31
user_sub FIDAP doesnt work semetay FLUENT 3 July 22, 2006 20:51
how to apply mixed BC by using Fidap subroutine? Ning Yang FLUENT 0 November 23, 2004 20:50
run fidap ? christophe moutet FLUENT 0 July 25, 2002 16:14
Variable Density - Free Surface with FIDAP Vitaliy Pavlyk FLUENT 7 May 2, 2000 16:56


All times are GMT -4. The time now is 06:53.