CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

CFX4.2 user fortran

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

LinkBack Thread Tools Display Modes
Old   June 29, 1999, 21:55
Default CFX4.2 user fortran
wan xiaotao
Posts: n/a
I have some more questions about CFX:

1. In stable problem, how can I set some constants and arrays in the beginning of each outer iteration, which will be used in USRDIF,USRBF,USRVIS and USRSRC. i.e. what is the calling sequence of user fortran. Also, the manual says that USRBF is called several times in a outer iteration, how about USRIPT and USRSRC.

2. How can I change the constants in the K-EPSILON model,such as

C1,C2,C3. Also,how can I get the coefficient of low Renolds

number K-EPSILON model, which includes function f1,f2 and f3.

3. In multi-fluid model, the right hand side is written as

RaSa or Ra(B-div(P))--(re. solver manual) . So, in USRSRC

and USRBF, one set the single phase value Sa,B(let the program

take care of Ra), or one set RaSa and RaB?

best regards
  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
user routine, user funcion, or fortran compile effect on the memroy? princeps11 CFX 1 May 13, 2009 18:37
Double precision & User Fortran Martijn CFX 3 April 4, 2009 05:43
User fortran routines, DEBUG AND OUTPUT Bloshchitsyn Vladimir CFX 5 October 29, 2007 02:31
CFX5 and user FORTRAN Worth CFX 9 December 25, 2003 02:43
USER FORTRAN in CFX4.2 Fabi CFX 1 December 16, 1999 09:38

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