CFD Online Logo CFD Online URL
Home > Forums > FLUENT


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

LinkBack Thread Tools Display Modes
Old   April 21, 2003, 19:42
Default UDS
Posts: n/a
I'm trying to use UDS to implement the complete granular temperature equation balance in FLUENT 6.0 (eqn. number 20.4.56 in FLUENT user's guide), but I've some problem (it's my first UDS).

1) I need to know the drag coefficient of the solid phase, but I can't find a macro in the user manual. In sg_mphase.h I found:

C_DRAG_COEFF_IJ (cell,thread,i,j)

but I don't know what i and j are.

2) I use C_VOF(c,pt[n]) to obtain volume fraction of the solid granular phase (secondary phase), but I'm not sure about the right syntax. I'll explain better: pt is defined as

Thread **pt

but if I use this macro in a

DEFINE_SOURCE (name,c,t,dS,eqn)

what is pt? An example would be really useful

3) Trying to compile a partial version of the UDS in FLUENT as an interpreted UDF and setting the UDS, all source terms appear in the fluid-mixture boundary condition panel even if they refer to the secondary phase. Is this normal?
  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
UDS Flux Function Choice Yang Chung FLUENT 1 November 17, 2015 02:14
PEM modeling UDS diffusivity in mixture gemini FLUENT 6 August 7, 2012 07:37
fixed value in the domain for a UDS in case of multiphase flow swati_mohanty FLUENT 2 November 30, 2010 04:17
Doubts UDS Flux, UDS Unsteady for VOF model kel85uk FLUENT 0 March 17, 2010 09:53
A good question about UDS Z FLUENT 1 March 31, 2005 15:14

All times are GMT -4. The time now is 17:20.