|
[Sponsors] |
June 7, 2010, 08:43 |
incorrect grid motion
|
#1 |
New Member
Ambareesh Rishi
Join Date: May 2010
Posts: 2
Rep Power: 0 |
I am modelling flow around a vibrating cylinder.i have successfully compiled and hooked this UDF but i am continuously getting this error.
Warning: incorrect grid motion UDF valve::libudf on zone 6 (assuming no motion). is something wrong with my UDF or compiler This is my UDF #include<udf.h> #include<math.h> #define A4 1.25 #define F4 0.255 DEFINE_CG_MOTION(vibration, dt, cg_vel, cg_omega, time, dtime) { real st; real va; va = A4*2*M_PI*F4; cg_vel[0] = 0.0; cg_vel[1] = va*cos(2*M_PI*F4*time); cg_vel[2] = 0.0; NV_S(cg_omega, =, 0.0); } |
|
July 14, 2010, 05:51 |
|
#2 |
Senior Member
Herman
Join Date: Nov 2009
Posts: 122
Rep Power: 16 |
Hi ambareesh13,
I have the same problem, compiling a UDF written for fluent 6.3.26... I wrote an UDF that work well in fluent 6.3.26, but it doesn't work when I compile the same UDF in fluent 12. I tried also to compile an other udf finding on cfd on line, that was written for fluent 12, but the same problem appears on the screen. Have you solved your problem? Could be a library problem? Thanks in advance. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
UDF problem: incorrect grid motion | Fil | FLUENT | 5 | December 19, 2020 10:16 |
Grid motion with UDF | fivos | Fluent UDF and Scheme Programming | 5 | June 30, 2018 09:50 |
Moving mesh | Niklas Wikstrom (Wikstrom) | OpenFOAM Running, Solving & CFD | 122 | June 15, 2014 07:20 |
MapFields to New Grid For Extreme Grid Deformations due to Body Motion | albcem | OpenFOAM | 0 | May 5, 2009 15:17 |
Combustion Convergence problems | Art Stretton | Phoenics | 5 | April 2, 2002 06:59 |