CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > CFX

Laminar combustion w/CHT

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 22, 2005, 07:30
Default Laminar combustion w/CHT
  #1
Frank
Guest
 
Posts: n/a
Hello everybody!

Does anybody has any experience in simulating Premixed Laminar combustion in presence of solids (combustion + conjugate heat transfer)?

When i'm simulating combustion without the solid, results show very good agreement about adiabatic flame temperature, but temperature at the walls are not realistic (so the solid has to be simulated).

The presence of a metal sheet should decrease the adiabatic flame temperature: the solid gains heating from the flame.

Boundary conditions are the same in both cases, but results show a higher temperature than the adiabatic one, and the solid is cooler than expected.

I'm using lots of elements at the interfaces and also did some sensibility on refinement so i could say it's not a mesh dependent case...Hexa everywere.

I also check the convergence or better the balance between the interfaces concering convection, conduction and radiation and everything seems ok...

Any ideas/suggestion?

Thanks in advance
  Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
laminar combustion / methane-air Volker Pawlik FLUENT 9 June 29, 2009 07:47
Laminar finite rate combustion model Shankar FLUENT 3 June 24, 2004 15:40
Premixed combustion -Laminar finite rate model Shankar FLUENT 4 March 17, 2004 15:32
Laminar combustion in porous media Mashihu FLUENT 4 May 10, 2003 20:08
premixed laminar combustion Volker FLUENT 7 September 6, 2001 09:28


All times are GMT -4. The time now is 07:43.