|December 11, 2012, 09:23||
define profile with multiple threads
Join Date: Apr 2010
Posts: 33Rep Power: 6
I have a domain with a couple of cell threads. I would like to firstly work out the average temperature in one of the threads by looping over the cells.
Then I would like to use that temperature to set the temperature at an inlet face in my domain.
I tried to do both steps in one define_profile. Define_profile is passed a thread from the solver. If I use the profile on my inlet face then the solver passes the inlet face thread. I tried to bring in the cell thread using
Lookup_Thread but I'm having problems.
Is it possible to do both steps in the one define_profile macro?
|December 16, 2012, 00:23||
Join Date: Oct 2012
Posts: 227Rep Power: 4
You should define two threads into that DEFINE_PROFILE, store the thread information into a variable, then call it into the equation of the Profile thread. I have done that before.
Ansys Fluent CFD Consultant
|February 28, 2013, 23:56||
2D airfoil O Grid- negative volume
samrat himvanth nanduri
Join Date: May 2012
Posts: 23Rep Power: 4
I'm carrying out a 2D pitching airfoil simulation using dynamic meshing with a "O" Grid. The dynamic conditions i have given were
1) airfoil - rigid body with UDF with pitching over X=0.25
2)interior - deforming with the min and max length scale from zone scale info
3) fluid -deforming with the min and max length scale from zone scale info.
The spring constant i gave was 0.001 and
convergence tolerance 0.0001
No of iterations 150.
The time step tat i used is 0.001.
After running the iterations and after about 500 time steps i'm getting the following error
negative volume detected
dynamic mesh update failed.
i have worked around with the spring constant and also with the time step nothing worked.
could someone help me out rectify this issue..
thanks in advance,
|Thread||Thread Starter||Forum||Replies||Last Post|
|HELP in UDF||er.mkumar||Fluent UDF and Scheme Programming||23||May 23, 2013 12:55|
|Define Certain Cell Threads in Udfs||payam_IUST||Fluent UDF and Scheme Programming||1||October 2, 2009 15:27|
|ACCESS VIOLATION||MHDWill||FLUENT||1||September 23, 2007 02:51|
|Define an equation for the inlet velocity profile||Alshroof||CFX||3||January 9, 2007 19:34|
|multiple threads||Teresa||FLUENT||2||June 23, 2005 11:46|