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leixiaobo713銀蟲 (正式寫手)
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[求助]
fluent中UDF編譯的問(wèn)題!
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本人想編的程序是這樣的: 材料是有初始溫度的,而且初始溫度為X(X軸坐標(biāo))的函數(shù);模擬開(kāi)始后,在很短時(shí)間內(nèi)材料的溫度將發(fā)生變化,變化的溫度為初始溫度的函數(shù),在一定時(shí)間后(上面提到的很短時(shí)間),材料的溫度僅隨流體的流動(dòng)而自然發(fā)生變化,沒(méi)有再生熱源。我變得程序是這樣的,雖然能編譯,但是模擬一開(kāi)始就出現(xiàn)錯(cuò)誤,請(qǐng)高手指點(diǎn),本人是小白,謝謝! #include "udf.h" DEFINE_PROFILE(unsteady_temperature,thread,position) { real t, temperature; face_t f; real x; begin_f_loop(f,thread) { t=RP_Get_Real("flow-time" ;if(t<=0.000000001) {temperature=325.0-0.115*x; F_PROFILE(f,thread,position) =temperature+(297.68625-7.37218/(1+exp((temperature-299.65187)/7.97379))); } else F_PROFILE(f,thread,position) =temperature; } end_f_loop(f,thread); } 模擬出現(xiàn)的錯(cuò)誤提示: Updating solution at time level N... done. iter continuity x-velocity y-velocity energy time/iter chip-exec: unsteady_temperature: wrong return type: float udf function expectedchip-exec: unsteady_temperature: argument 1: incorrect type (36): int expectedchip-exec: unsteady_temperature: argument 2: incorrect type (5): pointer expected Error: FLUENT received fatal signal (ACCESS_VIOLATION) 1. Note exact events leading to error. 2. Save case/data under new name. 3. Exit program and restart to continue. 4. Report error to your distributor. Error Object: () |

專家顧問(wèn) (著名寫手)
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專家經(jīng)驗(yàn): +60 |
木蟲 (正式寫手)
| 是不是溫度沒(méi)有賦初值?如果t<=0.000000001條件達(dá)不到temperature等于多少呢??還有,即使?jié)M足t<=0.000000001,那么x值為多少?x不知道的話,溫度也確定不了了啊 |
銀蟲 (正式寫手)

銀蟲 (正式寫手)
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#include "udf.h" DEFINE_PROFILE(unsteady_temperature,thread,position) { real t, temperature=298.0; face_t f; real x[ND_ND]; F_CENTROID(x,f,thread); begin_f_loop(f,thread) { t=RP_Get_Real("flow-time" ; if(t>0&&t<=0.1) F_PROFILE(f,thread,position)=temperature; else if(t>=0.1&&t<0.4) { temperature=298.0+5*x[1]; F_PROFILE(f,thread,position) =temperature+(297.68625-7.37218/(1+exp((temperature-299.65187)/7.97379))); } else { temperature=F_PROFILE(f,thread,position); F_PROFILE(f,thread,position) =temperature; } } end_f_loop(f,thread); } 我改成這樣,還是上面的問(wèn)題啊,請(qǐng)指教! FLUENT received fatal signal (ACCESS_VIOLATION) 1. Note exact events leading to error. 2. Save case/data under new name. 3. Exit program and restart to continue. 4. Report error to your distributor. Error Object: () |

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