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15Â¥: Originally posted by opporoppor at 2015-05-19 13:00:54
¶÷¶÷£¬×îºóÒ»¸öÎÊÌ⣬Õâ¸öfloat xºÍÏÂÃæµÄy = x £¬ÐèÒª¸ü¸ÄÂð?ʲôÇé¿öϸıäÀïÃæµÄÊý×Ö£¿...

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#include "udf.h"
DEFINE_PROFILE(velocity1,t,i)  /* ¶¨ÒåÊôÐÔºê Èý¸ö²ÎÊý µÚÒ»ÊÇÃû³Æ µÚ¶þ¸öÊÇÏß³ÌÖ¸Õë µÚÈý¸öÊDZäÁ¿±êºÅ */
{
    real x[ND_ND];    /* ´æ·Å2D»òÕß3DλÖòÎÊý */
    real y;          /* yֵΪģÐÍÖеÄy×ø±êÖµ */
    cell_t f;        /* ´´½¨Íø¸ñÌåÖ¸Õë */
    begin_c_loop(f,t)  /* ÌåÏß³ÌtÖÐËùÓÐÍø¸ñÌåÖ¸ÕëfµÄ±éÀúÑ­»· */
      {
       C_CENTROID(x,f,t);  /* °ÑÌåÏß³ÌtÖÐËùÓÐÖ¸ÕëfÖеÄÍø¸ñÌåµÄÖÐÐĵãµÄ×ø±êÖµ¸³¸øÊý×éx[ND_ND] */
       y = x[1];          /* °Ñx[ND_ND]Öеĵڶþ¸öÔªËØ¼¯ºÏ¸³¸ø±äÁ¿y */
       if ( y > 0.5 )      /* Ìõ¼þÅжϣ¬µ±yÖµ´óÓÚ0.5ʱ£¬Ö´ÐÐÏÂÁÐÓï¾ä */
           {
                   C_PROFILE(f, t, i) = y^2;   /* y^2ÊDZíʾÈë¿ÚËٶȵÈÓÚy×ø±êÖµµÄƽ·½£¬ÕâÀï¿ÉÒԸijÉÄãÒªµÄ¹ØÏµÊ½ */
       }
       else                              /* Ìõ¼þÅÐ¶Ï */
           {
                   C_PROFILE(f, t, i) = 1;      /* Ìõ¼þÅжϣ¬µ±yֵСÓÚ0.5ʱ£¬Ö´ÐÐÓï¾ä */
       }
          
      }
    end_c_loop(f,t)          /* ±éÀúÑ­»·½áÊø */
}
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liukan12

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opporoppor

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3Â¥: Originally posted by liukan12 at 2015-05-18 18:00:18
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