摘要
在冶金工业中，钢坯在经过热轧工序后需要冷却到室温后才能被锻造、加工成各种钢材、零件。而厂房内的空气流场状况，对于钢坯是否能够快速冷却，起到了较大的的作用。本文主要探究特定厂房进风口和出风口面积及进风角度对于冷却通风效率的影响，运用CFD软件建立了厂房冷却通风的数学模型，采用Realizablek-ε湍流双方程模型对该工业厂房的流场和温度场进行了数值计算，而后采用正交试验，比较分析了进风口、出风口面积及进风角度这三种因素的变化对于厂房内流场的影响，从而对厂房内的自然通风进行优化。
Abstract
Inmetallurgicalindustry,billetsrequirecoolingafterhotrollingprocesssothattheycanbeforgedintovariousparts.Theventilatingconditioninaworkshopbuildingmattersalottothecoolingofbillets.Thisarticlemainlyfocusesonhowtheareasofair-inletsandair-outlets,andtheanglesofair-inletsinfluencetheefficiencyofcoolingandventilating.ItutilizedCFDsoftwaretobuildthemathematicalmodelofthenaturalcoolingandventilatinginaworkshopbuilding,adoptedRealizablek-εmodeltocalculatetheflowdistributionandheatdistributionintheworkshopbuilding,andthenemployedorthogonaldesigntoanalyzehowtheareasofair-inletsandair-outlets,andtheanglesofair-inletsinfluencetheefficiencyofcoolingandventilating,toachievethegoalofoptimizingthenaturalventilationinaworkshopbuilding.
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