CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Wall to Bed Heat Transfer Coefficient

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

LinkBack Thread Tools Display Modes
Old   November 7, 2012, 23:01
Default Wall to Bed Heat Transfer Coefficient
Musango Lungu
Join Date: Dec 2011
Location: China
Posts: 73
Rep Power: 5
Musa is on a distinguished road
I am trying to monitor the transient wall to bed heat transfer coefficient in a fluidized bed using a formula defined in the custom field calculator as
h= (gas volume fraction*gas thermal conductivity* gas temp gradient+ solid volume fraction*solid thermal conductivity* solid temp gradient)/( Wall temp-Bed temp)
However my problem is accessing the temperature gradients in the custom field calculator. I have tried using the /solve/set/expert function and answering yes to the keep temporary solver memory from being freed as suggested in some of the posts on the forum. However I get the following error

FLUENT received fatal signal (ACCESS_VIOLATION)
1. Note exact events leading to error.
2. Save case/data under new name.
3. Exit program and restart to continue.
4. Report error to your distributor.
Error Object: #f
when I try to access the temperature gradients. How do I overcome this problem?
Musa 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 transfer coefficient - what is waht Stan FLUENT 20 March 11, 2014 11:42
Thin Wall Heat Transfer BC for rhoSimpleFoam swahono OpenFOAM Running, Solving & CFD 12 October 4, 2013 11:49
Wall Transfer Coefficien - Heat Transfer Coefficient - CFX Gargioni CFX 9 April 15, 2013 07:46
Wall heat transfer coefficient (HTC) problem Mohamed khamis CFX 1 January 16, 2010 00:12
CFX wall heat transfer coefficient mactech001 CFX 1 January 5, 2010 22:33

All times are GMT -4. The time now is 18:33.