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溫雅Betty新蟲 (小有名氣)
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[求助]
udf導出".txt"格式數(shù)據(jù) 已有1人參與
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| 如題,在fluent中使用DEFINE_CG_MOTION計算出剛體運行速度,想把速度值輸出成txt格式的文檔,求助各位前輩指點,本人試過用DEFINE_RW_FILE不行,也不知道是不是自己寫錯了 |
新蟲 (初入文壇)
專家顧問 (著名寫手)
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專家經(jīng)驗: +60 |
新蟲 (小有名氣)
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#include "stdio.h" #include "udf.h" static real v_prev = 0.5; void main() { FILE *fp; fp=fopen("result.txt","w" ;if (fp==NULL) { Message("無法打開文件\n" ;return; } else fprintf(fp,"%f",v_prev); fclose(fp); } DEFINE_CG_MOTION(piston,dt,vel,omega,time,dtime) { Thread *t; face_t f; real NV_VEC(A); real force, dv, total_area; /* reset velocities */ NV_S(vel, =, 0.0); NV_S(omega, =, 0.0); if (!Data_Valid_P()) return; t = DT_THREAD(dt); force = 0.0; total_area =0; begin_f_loop(f,t) { F_AREA(A,f,t); total_area += NV_MAG(A); force += F_P(f,t) * NV_MAG(A); } end_f_loop(f,t) dv = dtime * force / 250.0; v_prev -= dv; Message ("time = %f, x_vel = %f, force = %f\n, area=%f", time, v_prev, force, total_area); vel[0] = v_prev; } 早上忘了給出程序 |
新蟲 (小有名氣)
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