CFD Online Logo CFD Online URL
Home > Forums > FLUENT

heat exchanger

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

LinkBack Thread Tools Display Modes
Old   May 18, 2005, 02:40
Default heat exchanger
pratap behera
Posts: n/a
hi ppl i have a simple problem. i am having a pipe heat exchanger in which two pipe is the inner pipe hot fluid flows and in the outer pipe cold fluid flows. as a new user i am unable to find how to take two fluid in the two pipes and how to model it. can anyone please maintion how to use the BCs and all the conditions

thanks in advance. thanking you pratap
  Reply With Quote

Old   May 18, 2005, 05:01
Default Re: heat exchanger
Posts: n/a
Try multiphase

  Reply With Quote

Old   May 18, 2005, 12:56
Default Re: heat exchanger
Posts: n/a
I'm not so sure. Why not simply define two appropriate fluid zones (continuum) when you mesh your geometry in gambit and later in fluent choose fluid.1 or fluid.2 and set it to the appropriate fluid? It does not appear to be a multi-phase problem. Just a simple double-pipe Heat exchanger where the two fluids never mix?
  Reply With Quote

Old   August 10, 2010, 23:56
Default double pipe exchanger
subha_meter's Avatar
Subhasish Mitra
Join Date: Oct 2009
Location: Australia
Posts: 54
Rep Power: 8
subha_meter is on a distinguished road
No need to use multifluid model. Separate continuum will do. However it's easy if the problem is 2D. You can make the annular space. But I have doubt how to do to in 3D since if you place 2 co-centric cylinders and simply mesh it, Fluent will treat the inner cylinder as a part of outer cylinder and solve through it i.e. the inner cylinder wall would appear as permeable!!
subha_meter is offline   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
Heat Exchanger Model sak2129 FLUENT 2 December 8, 2014 08:28
Macro Heat Exchanger not selecting (Please help!) zdeth FLUENT 2 September 11, 2012 13:52
UDF for Heat Exchanger model francois louw FLUENT 2 July 16, 2010 02:21
Heat Exchanger Simulation tightaznbreaka FLUENT 0 March 18, 2010 16:45
Convective Heat Transfer - Heat Exchanger Mark CFX 6 November 15, 2004 16:55

All times are GMT -4. The time now is 22:33.