would someone give me a example of udf for 6DOF calculation?

best regard

dude,

isnt it there on fluent site, cutomer-support web-page?

Sai

#include "udf.h"

DEFINE_SDOF_PROPERTIES(stage, prop, dt, time, dtime)

{

prop[SDOF_MASS] = 1;

prop[SDOF_IXX] = 1.333e-4;

prop[SDOF_IYY] = 1.333e-4;

prop[SDOF_IZZ] = 1.333e-4;

}

* * * * *

where SDOF_MASS - mass of the element, SDOF_IXX,YY,ZZ - moment of inertia.

[holysky]

Originally Posted by Maciej
;125806

#include "udf.h"

DEFINE_SDOF_PROPERTIES(stage, prop, dt, time, dtime)

{

prop[SDOF_MASS] = 1;

prop[SDOF_IXX] = 1.333e-4;

prop[SDOF_IYY] = 1.333e-4;

prop[SDOF_IZZ] = 1.333e-4;

}

* * * * *

where SDOF_MASS - mass of the element, SDOF_IXX,YY,ZZ - moment of inertia.

using the code above, i got a message: 6dof must have a positive mass,,
can you explain it,,thank you!