| madboy19 |
November 9, 2015 07:15 |
Wankel - Rotary Engine UDF Usage
Hello . I am trying to apply this code to my project
Code:
#include "udf.h"
#define r -0.015 /*Eccentricity*/
#define k 57.2727 /*rad to degree*/
#define w 314.16 /*angular velocity in rad/sec*/
/* for grid motion */
DEFINE_CG_MOTION(rotor, dt, vel, omega,time, dtime)
{
real beta;
NV_S(vel, =, 0.0);
NV_S(omega, =, 0.0);
omega[2] = 314.16; /*angular velocity in rad/sec*/
beta = 942.48; /*angular velocity of rotor in rad/sec*/
vel[0] = -beta*r*sin(beta*time);
vel[1] = beta*r*cos(beta*time);
vel[2]= 0;
}
But I think I am missing something am I need to configure in fluent for that because rotor is rotating so weird. After 1sec I cant even see rotor in my screen it goes somewhere else. |
