CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

UDF for porosity

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 13, 2004, 03:39
Default UDF for porosity
  #1
cfd-novice
Guest
 
Posts: n/a
For a packed column, how do we define the porosity of the bed to vary radially in FLUENT? We want to simulate the flow misdistribution due to the radial variation of flow resistance in the column. What I understand is that I have to use a UDF for that. But then,

For the UDF, how do I define (1) the radial variations (all udf examples are in cartesian co-ordinates, and not for cylindrical geometry) (2) the porosity which will physically simulate the flow behavior (change in intersitial velocity radially as the bed porosity changes)?

Thanks, Rakib
  Reply With Quote

Old   January 16, 2004, 10:41
Default Re: UDF for porosity
  #2
Thomas
Guest
 
Posts: n/a
If I remember well Greg Perkins has posted a UDF in which he has a subroutine to calculate the porosity variation. You can search with the term "Perknins" to find his posts and his code. Hope to help you Thomas
  Reply With Quote

Old   August 20, 2009, 04:19
Default porosity variations
  #3
New Member
 
Sebastian
Join Date: May 2009
Posts: 3
Rep Power: 17
stcz is on a distinguished road
Hi Thomas,
i found post you mentioned about Greg Perkins. I was trying to find him but couldn't. I am very interested in UDF to calculate the porosity variations. Could you help me to find this code.
thanks

stcz

Quote:
Originally Posted by Thomas
;110112
If I remember well Greg Perkins has posted a UDF in which he has a subroutine to calculate the porosity variation. You can search with the term "Perknins" to find his posts and his code. Hope to help you Thomas
stcz is offline   Reply With Quote

Reply


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
Dynamic Mesh UDF Qureshi FLUENT 7 March 23, 2017 08:37
UDF parallel error: chip-exec: function not found????? shankara.2 Fluent UDF and Scheme Programming 1 January 16, 2012 23:14
How to add a UDF to a compiled UDF library kim FLUENT 3 October 26, 2011 22:38
UDF...UDF...UDF...UDF Luc SEMINEL FLUENT 0 November 25, 2002 05:03
UDF, UDF, UDF, UDF Luc SEMINEL Main CFD Forum 0 November 25, 2002 05:01


All times are GMT -4. The time now is 07:04.