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#include"udf.h"

DEFINE_ON_DEMAND(cavern_cals_s)

{
    Domain *d;
    real strain,volume,vol_tot;
    Thread *t;
    cell_t c;
    d=Get_Domain(1);

    thread_loop_c(t,d)
                  {
                  begin_c_loop(c,t)
                         {
                         volume=C_VOLUME(c,t);
                         strain=C_STRAIN_RATE_MAG(c,t);

                         if(strain>=0.984)
                                 vol_tot+=volume;
                         }
                  end_c_loop(c,t)
                  }
    printf("The cavern volume is %10.8f",vol_tot);
}

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£¨2£©È»ºóuser define/execute on demand/execute¡£
  (3)µ«Êǽá¹ûÔÚÆÁÄ»ÏÔʾ the cavern volume is 0.0000000.
ÉÏÊö¸Õ¿ªÊ¼µÄʹÓõÄÓ¦±ä´óСÁÙ½çֵΪstrain>=5.64£¬¼ÆËã½á¹ûΪ0.00000000£¬ÎÒÒÔΪӦ±äÁÙ½çֵȡ´óÁË£¬¾Í¸ÄΪÉÏÃæµÄ0.984ÊÔһϣ¬¿ÉÊǼÆËã½á¹û»¹ÊÇ0.0000000£¬²»ÖªµÀÎÊÌâ³öÏÖÔÚÄÄÀ£¡£¡Çó´óÉñ°ïÖú£¡
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