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kehuanshukan金蟲 (小有名氣)
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[求助]
請教fluent中help里DEFINE_VR_RATE中 *rate等含義
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/********************************************************************* UDF for specifying a volume reaction rate The basics of ANSYS FLUENT’s calculation of reaction rates: only an Arrhenius ("finite rate" reaction rate is calculatedfrom the inputs given by the user in the graphical user interface **********************************************************************/ #include "udf.h" DEFINE_VR_RATE(vol_reac_rate,c,t,r,wk,yk,rate,rr_t) { real ci, prod; int i; /* Calculate Arrhenius reaction rate */ prod = 1.; for(i = 0; i < r->n_reactants; i++) { ci = C_R(c,t) * yk[r->reactant] / wk[r->reactant]; prod *= pow(ci, r->exp_reactant); } *rate = r->A * exp( - r->E / (UNIVERSAL_GAS_CONSTANT * C_T(c,t))) * pow(C_T(c,t), r->b) * prod; *rr_t = *rate; /* No "return..;" value. */ } 語句中不明白*rate和*rr_t中*表示什么含義 |
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