请教各位，该怎么对边界附近的单元赋值，比如下面这个UDF.我想将一个区域的 C_UDMI(c, tt, 0)全部设置为0，然后边界附近的 C_UDMI(c, tt, 0)设置为1，该怎么操作？谢谢！
void set_zone(Thread* t) { cell_t c; real vol; Thread *tt = THREAD_SUPER_THREAD(t); begin_c_loop(c, t) { if (THREAD_ID(t) == 1047) { C_UDMI(c, tt, 0) = 1; } end_c_loop(c, lct) } void set_cells(Thread *t) { Thread *tt = THREAD_SUPER_THREAD(t); face_t f; Thread *t_nbr; cell_t c0, c1; Domain *mix_domain = Get_Domain(1); for (int i = 0; i < num_boundaries; i++) { t_nbr = Lookup_Thread(mix_domain, 1); begin_f_loop(f, t_nbr){ c0 = F_C0(f, t_nbr); c1 = F_C1(f, t_nbr); if (c0 != -1 && THREAD_ID(THREAD_T0(t_nbr)) == 1047) { C_UDMI(c0, tt, 1) = 0.0; } if (c1 != -1 && THREAD_ID(THREAD_T1(t_nbr)) == 1047) { C_UDMI(c1, tt, 1) = 0.0; } } end_f_loop(f, t_nbr) } } DEFINE_ADJUST(aaa, mix_domain) { Thread* mix_thread; int phase_domain_index = 0; thread_loop_c(mix_thread, mix_domain) { Thread* t = THREAD_SUB_THREAD(mix_thread, phase_domain_index); if (t != NULL) { set_capillary_pressure_sources(t); set_boundary_cells(t); } } }Fluent
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