CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Running, Solving & CFD

Heat exchanger simulation diverges on buoyantBoussinesqSimpleFoam

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 14, 2014, 10:07
Default Heat exchanger simulation diverges on buoyantBoussinesqSimpleFoam
  #1
New Member
 
Eshita Pal
Join Date: Mar 2012
Posts: 6
Rep Power: 5
EshitaPal is on a distinguished road
I am trying to simulate the shell side flow of a double pipe heat exchanger using buoyantBoussinesqSimpleFoam on Openfoam 2.2.0. If I increase the velocity at inlet or make the meshing fine, then the simulation diverges. Can anyone suggest why?

boundary conditions:
inlet: const vel and zeroGrad pressure
outlet: atmospheric pressure and zeroGrad velocity
tube wall: const T and no slip
shell wall: zeroGrad T and no slip
turbulence model: kEpsilon
Scheme: upwind
EshitaPal is offline   Reply With Quote

Reply

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
Quenching simulation : how to set up a conjugate heat transfer between solid&liquid Rockda FLUENT 23 March 15, 2015 00:19
Heat Exchanger Simulation tightaznbreaka FLUENT 0 March 18, 2010 16:45
Diesel combustion simulation ( Heat release rate) venkatesh CD-adapco 2 April 29, 2009 07:38
Concentric tube heat exchanger (Air-Water) Young CFX 5 October 6, 2008 23:17
Natural convection - Inlet boundary condition max91 CFX 1 July 29, 2008 20:28


All times are GMT -4. The time now is 16:31.