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

UDF defined mass flux

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

LinkBack Thread Tools Search this Thread Display Modes
Old   October 5, 2008, 20:26
Default UDF defined mass flux
Posts: n/a
I tried to simulate the mass transfer distribution from a to surface where there is a mass flux of 2.4e-13 kg/s. The bulk flows at 0.0001 m/s. I used UDF defined flux as shown below: #include "udf.h"

DEFINE_PROFILE(mass_flux,t,i) { face_t f;




} end_f_loop(f,t)


However, the results are not reasonable since at such low velocity and low surface rate at steady flow, the mass distribution should not show such gradient. I checked the sets and parameters, and I cannot find why it causes. Can anybody please tell me what's wrong at the UDF defined flux?

  Reply With Quote


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
UDS flux defined in each domain Davis FLUENT 0 June 28, 2007 20:36
Mass flux and mass flow rate us Phoenics 10 March 31, 2006 03:06
Flux functions for User-Defined Scalars Zhengcai Ye FLUENT 0 October 8, 2004 11:34
How are the mass flux and mass flow rate defined? Miles Siemens 2 November 7, 2002 09:45
User-Defined Scalar convective flux Ola Nordblom FLUENT 3 March 19, 2001 10:59

All times are GMT -4. The time now is 13:41.