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#include"udf.h"
#include"sg.h"
#define e1 8.854E-12
#define pi 3.1415926
#define phi 0
#define electron 1.602E-19
#define qp 2000
DEFINE_ADJUST(adjust_fcn,d)
{
        Thread *t;
        cell_t c;
        if(! Date_Valid_P())
                return;
        thread_loop_c(t,d)
        {
                if(FLUID_THREAD_P(t))
                {
                        begin_c_loop_all(c,t)
                        {
                                C_UDMI(c,t,0)=NV_MAG(C_UDSI_G(c,t,0));
                                C_UDMI(c,t,1)=-C_UDSI_G(c,t,0)[0];
                                C_UDMI(c,t,2)=-C_UDSI_G(c,t,0)[1];
                        }
                        end_c_loop_all(c,t)
                }
        }
}
DEFINE_DPM_BODY_FORCE(particle_body_force,tp,i)
{
        real bforce=0.0;
                real xc[ND_ND];
        Particle *p;
        cell_t c;
        Thread *t;
        c=P_CELL(tp);
        t=P_CELL_THREAD(tp);
        C_CENTROID(xc,c,t);
        if(i==0)
                bforce=-C_UDSI_G(c,t,0)[0]*qp*electron+qp*electron*qp*electron/(16.0*pi*(0.089-xc[0])*(0.088-xc[0]));
        else if(i==1)
                bforce=-C_UDSI_G(c,t,0)[1]*qp*electron+qp*electron*qp*electron/(16.0*pi*(0.089-xc[0])*(0.088-xc[0]));
        return (bforce/P_MASS(tp));
}
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