CFD Online Logo CFD Online URL
Home > Forums > CFX

Three components system

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

LinkBack Thread Tools Display Modes
Old   October 2, 2008, 06:05
Default Three components system
Posts: n/a
We are two mechanical engineering students, we have to develop a student project about a combustor using Ansys CFX, so we're quite new to this kind of works. In our problem there are two noozles, one of those containing air and the other containing CH4; the jets coming from those noozles are mixed together downstream the pipe. We have three domains, one for air, one for CH4 and one for the mixture of them. We settled the outlet pressure condition at 0 relative bar, the inlet condition is the mass flow rate of air and CH4 (fixed), and we put a fluid-fluid interface corresponding the outlet of the noozles and the inlet of the downstream pipe. When simulation starts, it stops quickly, before starting iterations; and in the scripting line Ansys write that in the air and the CH4 domains pressure is not defined. The same simulation working only with air works correctly. How can we solve this problem?

Thanks for the help

Alessandro and Cristiano
  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
CFX11 + Fortran compiler ? Mohan CFX 20 March 30, 2011 18:56
Need ideas-fuel discharge system Jan FLUENT 1 October 10, 2006 23:05
Need ideas-fuel discharge system Jan CFX 1 October 9, 2006 08:16
need ideas-fuel discharge system Jan Siemens 0 October 9, 2006 04:31
Need ideas-fuel discharge system Jan Main CFD Forum 0 October 9, 2006 04:27

All times are GMT -4. The time now is 10:53.