第44卷第2期2023年2月哈尔滨工程大学学报JournalofHarbinEngineeringUniversityVol.44№.2Feb.2023船用燃气轮机进气部件结冰规律研究任永鹏,万雷,王萌,王忠义,曲永磊(哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001)摘要:结冰会改变船用燃气轮机进气部件的气动特性,影响压气机工作效率。本文对船用燃气轮机进口导叶及导流罩进行二维结冰计算,以BP神经网络为基础,对船用燃气轮机进口导流罩的结冰临界温度进行预测。结果表明:结冰参数会影响部件表面冰形和结冰种类,从而影响部件的气动特性;特定条件下,当环境温度高于冰点时,进气部件表面也会发生结冰现象;明冰不仅会影响进气部件的气动特性,还存在冰层脱落的危险;结合BP神经网络可以形成一套具有适用范围的船用燃气轮机进口导流罩结冰临界温度预测代码。关键词:船用燃气轮机;二维结冰;叶型;导流罩;数值模拟;欧拉法;FENSAP-ICE;临界温度;BP神经网络DOI:10.11990/jheu.202107025网络出版地址:https://kns.cnki.net/kcms/detail/23.1390.U.20221122.2134.018.html中图分类号:U664.131文献标志码:A文章编号:1006-7043(2023)02-0235-09ResearchontheinfluenceoficingonintakecomponentsofmarinegasturbineRENYongpeng,WANLei,WANGMeng,WANGZhongyi,QUYonglei(CollegeofPowerandEnergyEngineering,HarbinEngineeringUniversity,Harbin150001,China)Abstract:Theaerodynamiccharacteristicsoftheintakecomponentsofmarinegasturbinewouldbechangedbyicing,whichwillaffectworkingefficiencyofthecompressor.Inthispaper,two-dimensionalicingofinletguidevaneandcen-terdeflectorofmarinegasturbineiscalculated,andthentheicingcriticaltemperatureofthecenterdeflectorofmarinegasturbineispredictedbasedontheBPneuralnetwork.Theresultsshowthattheicingparameterswillinfluencetheic-ingshapeandicingspeciesonthesurfaceofcomponent,andtherebyinfluencetheaerodynamiccharacteristicsofthecomponent.Undercertainconditions,whentheambienttemperatureishigherthanthefreezingtemperature,icingwillalsooccuronthesurfaceofintakecomponents.Glazeicewillnotonlyaffecttheaerodynamiccharacteristicsofintakecomponents,butalsocausetheriskoficefallingoff.CombinedwithBPneuralnetwork,asetofapplicablepredictioncodesforcriticalicingtemperatureofthecenterdeflectorofmarinegasturbinec...
