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

enthalpy in segregated and coupled

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 2, 2007, 03:43
Default enthalpy in segregated and coupled
  #1
naomi
Guest
 
Posts: n/a
Hi, I try to simulate the same case using both segregate and coupled solver.

The results deviated largely. I did notice that the enthalpy for coupled is around 300.000 J/kg, while for segregated only 2900 J/kg.

I already activated the viscous heating and other energy equation's components in segregated in order to resemble the coupled solver.

can somebody tell me what is the reason for this?
  Reply With Quote

Old   August 2, 2007, 03:46
Default Re: enthalpy in segregated and coupled
  #2
naomi
Guest
 
Posts: n/a
I activated the energy equation on both solver. in solve -> control -> solution for segregated solver, the energy eq showed up, but not in coupled solver.

anybody can help?
  Reply With Quote

Old   August 2, 2007, 04:32
Default Re: enthalpy in segregated and coupled
  #3
Ralf Schmidt
Guest
 
Posts: n/a
Hi!

are the reference values set correctly? are they the same for both cases??

Ralf
  Reply With Quote

Old   August 2, 2007, 06:46
Default Re: enthalpy in segregated and coupled
  #4
oxalis
Guest
 
Posts: n/a
yes, the reference values are the same except for the enthalpy. the segregated and coupled solve count enthalpy differently although i set all parameters the same. that's why i'm confused.....
  Reply With Quote

Old   August 2, 2007, 06:47
Default Re: enthalpy in segregated and coupled
  #5
naomi
Guest
 
Posts: n/a
yes, the reference values are the same except for the enthalpy. the segregated and coupled solve count enthalpy differently although i set all parameters the same. that's why i'm confused.....

  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
Segregated or Coupled flow? hamzamotiwala STAR-CCM+ 7 October 25, 2011 19:35
switching from coupled solver to segregated Oz FLUENT 2 November 8, 2006 17:02
Coupled Explicit OR Segregated Amit Shrestha FLUENT 1 November 19, 2005 04:24
Segregated or coupled solver? Nori FLUENT 0 September 29, 2005 14:24
Segregated or coupled? Pierluigi Allegro FLUENT 2 September 25, 2000 23:51


All times are GMT -4. The time now is 13:49.