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

Combustion in a closed System

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 18, 2007, 23:56
Default Combustion in a closed System
  #1
Martin Castillo
Guest
 
Posts: n/a
Hello Matej, I am new to Fluent and have been doing some modeling recently. I am studying the combustion of air and hydrogen in a closed chamber. My 2-D mesh looks like a donut with an inner radius of .3mm and outer of 50mm and this has been cut in half for symmetry purposes. I am having trouble modeling in a closed chamber and hope you can help me out. I would like to start the combustion of the gas at the small inner diameter "hot-wire". This surface should be somewhere from 875 to 1300 deg C. I have done the following procedure to accomplish this and then at the end I am unable to define the temperature of the hot-wire and chamber wall.

 File->Read Case->2d chamber 05.msh  Grid->Check  Grid->Scale->mm->Scale->Close  Define->Models->Solver->Time->Unsteady->Ok  Define->Models->Radiation->P1->Ok->Ok to the warning  Define->Models->Viscous->K-epsilon(2eqn)->OK  Define->Models->Species->Premixed Combustion->Apply->Ok to the warning->Ok  Define->Materials->Fluent Database->Then I picked out air and hydrogen->changed absorbtion coefficient to 10 for both of them and each time clicked on Change/Create->Close  Define->operating conditions->Checked Gravity->Y=-9.8->ok  Define->Boundary Conditions->Hot Wire->###Can't define temperatures here###

Any ideas suggestions are appreciated.

Thanks, Dr. Martin Castillo

  Reply With Quote

Reply


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
CFX11 + Fortran compiler ? Mohan CFX 20 March 30, 2011 19:56
closed system memahfud CFX 4 July 15, 2009 06:06
Incompressible Ideal Gaz in a closed system - Help JB FLUENT 2 August 1, 2008 05:16
Combustion in a closed System Martin Castillo FLUENT 3 June 20, 2007 22:38
Combustion in a closed system. Jim Main CFD Forum 7 December 9, 2004 14:49


All times are GMT -4. The time now is 10:06.