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ÇëÎÊÄÄλ´óÉñÖªµÀudfÈçºÎ¶¨ÒåÃܶÈÂ𣿠¿ÉѹËõÁ÷£¬ÃÜ¶È ºÍѹÁ¦ÓÐ¹Ø Density = 890/(1 - dp/beta) ÆäÖÐdpÊÇѹÁ¦Î¢·Ö£¬betaÊÇÌå»ýµ¯ÐÔÄ£Á¿ ÎҵijÌÐòÊÇ # include"udf.h" # define beta 1.4e9 //¶¨ÒåÌå»ýµ¯ÐÔÄ£Á¿ Pa DEFINE_PROPERTY(cell_density,thread) { real init_pressure = 100000; //³õʼѹÁ¦ÉèΪ0.1MPa£¬´ËʱµÄÃܶÈΪ³õʼÃÜ¶È real init_density = 890; //³õʼÃܶÈÉèΪ890kg/m^3 real delta_pressure; real density; face_t f; cell_t c; begin_f_loop(f,thread) { real temp = C_P(c,thread); //»ñÈ¡µ±Ç°Ñ¹Á¦Öµ delta_pressure = temp - init_pressure; density = init_density/(1 - delta_pressure/beta); init_pressure = temp; } end_f_loop(f,thread) return density; } |
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