CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

Shell-and-tube heat exchanger

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

LinkBack Thread Tools Search this Thread Display Modes
Old   February 14, 2011, 15:22
Unhappy Shell-and-tube heat exchanger
New Member
Andy Pier
Join Date: Feb 2011
Location: Indianapolis
Posts: 2
Rep Power: 0
Andytzki is on a distinguished road

I am dealing with a slightly different version of the common shell-and-tube heat exchanger. This model is just a tube encapsulated by another tube. The outter tube has chilled water flowing through it and the inner tube has hot air. The boundary conditions are inlet velocity and pressure outlets. The inner tube wall is modelled as an thin wall so I am just using the option in fluent to just give the wall a thickness for 1-D conduction without meshing it.

The trick to this model is that the tube is an elliptical twisted tube, therefore flow is likely swirling around which is supposed to enhance heat transfer and increase pressure drop.

I ran the same model using hot and cold air and the solutions at least convereged even if I have no idea if they are reliable. When I change the shell to water, it is not converging not even in first order.

Can someone please help? I am using turbulence model K-epsilon RNG.
Andytzki is offline   Reply With Quote


cylinder, heat exchanger, tube, turbulence model

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
FSI error ERROR #001100279(Shell & Tube heat exchanger) Chandrashekhar CFX 3 March 26, 2010 15:04
Heat exchanger modelling Diana FLUENT 5 February 24, 2010 18:02
Heat Exchanger Model - urgent JSM FLUENT 6 September 22, 2007 04:25
3D shell and tube heat exchanger Peter Jansen FLUENT 2 June 7, 2006 07:01
How to simulate 3D shell and Tube heat Exchanger san FLUENT 2 February 22, 2006 05:44

All times are GMT -4. The time now is 06:52.