CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Problem with prePDF

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

LinkBack Thread Tools Display Modes
Old   April 15, 2005, 13:15
Default Problem with prePDF
Posts: n/a
Sponsored Links
hi there i tried to generate the required pdf file of the fuel(LSHSD) for non premixed combution model of my combustor. the max temp it is showing is 5500k which seems to be absurd . i am following the guide lines of the help files on coal combustion, ie equilibrium model , beta solver etc.(basically i am using the default vales). the species are C,H,S,O2,N2,CO2,CO,C,O,H2O,HO,SO2. C=.353 H=.646 S=7.4e-04. so the final analysis in fluent is giving an exit temp of 4400k . more over is it necesarry to model the swirler the igniter for the GT combudtion chamber. could any one kindly tell what could the problem be. thank u.
  Reply With Quote
Sponsored Links

Old   April 24, 2005, 11:59
Default Re: Problem with prePDF
Posts: n/a

try to use firstly adiabatic case unser prepdf, note the peak temp and the coreponding mixture fraction, then run the non adiabatic case, you can see details on the tutorial"modeling non premixed combustion" of the fluent 6.0

  Reply With Quote


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
Problem with interFoam; Wave/wiggle alpha1 behavior JonW OpenFOAM 3 February 23, 2013 21:41
Problem in implementing cht tilek CFX 3 May 8, 2011 08:39
natural convection problem for a CHT problem Se-Hee CFX 2 June 10, 2007 06:29
Adiabatic and Rotating wall (Convection problem) ParodDav CFX 5 April 29, 2007 19:13
Is this problem well posed? Thomas P. Abraham Main CFD Forum 5 September 8, 1999 14:52

Sponsored Links

All times are GMT -4. The time now is 12:57.