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

UDF using data from postprocessing surface

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

LinkBack Thread Tools Display Modes
Old   July 31, 2005, 12:58
Default UDF using data from postprocessing surface
Posts: n/a

I'm trying to create a UDF where I need to get the pressure average from a post processing surface. How can I get this data? how can I get the cell index of the cells that my postprocessing surface crosses?

Many thanks

  Reply With Quote

Old   August 1, 2005, 04:21
Default Re: UDF using data from postprocessing surface
Posts: n/a
Could you discribe your case more detailedly? So, maybe I could give some useful information to you.
  Reply With Quote

Old   August 1, 2005, 11:16
Default Re: UDF using data from postprocessing surface
Posts: n/a

I have a pressure outlet.I'm forcing this pressure outlet with a UDF (thanks to "DEFINE PROFILE"). The pressure at this outlet as to follow a certain equation: it has to be the same than the pressure on a certain point that is in the middle of my computation domain. I have defined this point in surface>point in Fluent. What i need to do is to get the pressure at the cell where this point is situated and to use it in my pressure outlet UDF. I know that the fonction C_P(c,t) can give you the pressure if you know the cell index "c" and the thread "t". So, what I think is that if I have the cell index, then, I should have solved my problem. Can you help me on this?

many thanks cedric
  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
fluent udf, saving data in udf mohsen zendehbad Fluent UDF and Scheme Programming 15 June 13, 2017 23:23
Error : Self intersecting surface mesh, computing intersections & Error : Impossible velan Open Source Meshers: Gmsh, Netgen, CGNS, ... 3 October 22, 2015 11:05
Use of Experimental Data in fluent using UDF anvitaa.sharma FLUENT 2 February 18, 2010 11:46
Data logging in UDF carno FLUENT 2 October 6, 2008 01:43
Postprocessing Pressure data spanwise over a wing Rick FLUENT 1 February 3, 2006 10:28

All times are GMT -4. The time now is 10:49.