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¼ÆËã±ÚÃæÌõ¼þµÄ£¬Õâ¸öudfÊÇ·ÂÕÕ°ïÖúÎĵµÐ´µÄ£¬ÄܼÓÔØ£¬µ«ÅöײµÄÁ£×Ó¶¼abortÁË£¬ÎÞ·´µ¯µÄÁ£×Ó£¬ÏëÖªµÀÄÄÀï³öÎÊÌâÁË¡£ #include "udf.h" DEFINE_DPM_BC(my_dpm_bc,p,t,f,f_nomal,dim) { real vn=0.; real alpha; real vc; real vn1; real nor_coeff=0.8; real tan_coeff=0.3; real nomal[3]; real diam; real NV_VEC(x); diam=P_DIAM(p); int i,idim=dim; for(i=0;i<idim;i++) nomal=f_nomal; for(i=0;i<idim;i++) vn+=p->state.V*nomal; vn1=fabs(vn); vc=pow((2*0.00000018/diam/45.3/45.3*pow((45.3+pow(vn1,0.718)),2)),1.43); if(vn1<vc) { return PATH_ABORT; } else if(p->type==DPM_TYPE_INERT) { alpha=M_PI/2.-acos(MAX(-1.,MIN(1.,NV_DOT(nomal,p->state.V)/ MAX(NV_MAG(p->state.V),DPM_SMALL)))); if((NNULLP(t))&&(THREAD_TYPE(t)==THREAD_F_WALL)) F_CENTROID(x,f,t); for(i=0;i<idim;i++) p->state.V-=vn*nomal; for(i=0;i<idim;i++) p->state.V*=tan_coeff; for(i=0;i<idim;i++) p->state.V-=nor_coeff*vn*nomal; for(i=0;i<idim;i++) p->state0.V= p->state.V; return PATH_ACTIVE; } } |
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