Store Separation from a 3D Delta WIng

User defined function

/*******************************************************

SDOF property compiled UDF with external forces/moments

*******************************************************/

#include "udf.h"

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

{

   prop[SDOF_MASS]       = 907.185;

   prop[SDOF_IXX]        = 27.116;

   prop[SDOF_IYY]        = 488.094;

   prop[SDOF_IZZ]        = 488.094;

   /* add injector forces, moments */

   {

     register real dfront = fabs (DT_CG (dt)[2] - 

                            (0.179832*DT_THETA (dt)[1]));

     register real dback  = fabs (DT_CG (dt)[2] +

                            (0.329184*DT_THETA (dt)[1]));

     if (dfront <= 0.100584)

       {

         prop[SDOF_LOAD_F_Z] = 10676.0;

         prop[SDOF_LOAD_M_Y] = -1920.0;

       }

     if (dback <= 0.100584)

       {

         prop[SDOF_LOAD_F_Z] += 42703.0;

         prop[SDOF_LOAD_M_Y] += 14057.0;

       }

   }

   printf ("\ndelta_missile: updated 6DOF properties");

}