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

who can help to resolve the UDF problem?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 26, 2008, 08:40
Default who can help to resolve the UDF problem?
  #1
poiu
Guest
 
Posts: n/a
My problem is an reactor with three-phase in it,air bubbles ,biomass granules and water. I use FLUENT to simulate the flow in the reactor.But how can i set the boundary conditions if i want to use my owe equations? Where to write them? I am a new man here in CFD. Thanks!
  Reply With Quote

Old   October 27, 2008, 06:02
Default Re: who can help to resolve the UDF problem?
  #2
Thiru
Guest
 
Posts: n/a
Hai I suggest you to go through the FLUENT's 'udf manual'. It clearly describes everything related to udf's.

FLUENT provides user-defined 'macros'. These are similar to sub-routines or functions in 'C'. One can use such macros to input own Boundary conditions, source terms, scalar equations, etc.

For ex. DEFINE_SOURCE, DEFINE INIT, DEFINE ON DEMAND, etc.

DEFINE_PROFILE(name,t,nv) macro is used for user defined Boundary Conditions (BC). After coding your BC using this macro. You can compile the same in Fluent. After the successful compilation your function will be available in BC drop-down panel.(select 'user-defined' first, then name of your udf)

  Reply With Quote

Reply

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
???how to resolve 'FLEXlm' error. plz help!??? rok FLUENT 1 September 28, 2007 13:29
How can I resolve transition point kuky OpenFOAM Running, Solving & CFD 0 June 17, 2007 14:22
How to resolve boundary condition problem? sam FLUENT 2 July 20, 2003 02:19
how many points needed to resolve a vortex? Jiaying Xu Main CFD Forum 2 February 25, 2003 15:28
Fluent 5/ASM : how to resolve the abnormality? zhou_eric FLUENT 4 June 22, 2001 00:09


All times are GMT -4. The time now is 20:19.