%0 Journal Article %T 基于AVL-FIRE的GPF性能仿真研究 %A 牛彦凯 %A 张铁臣 %A 刘晓日 %A 封 %A 硕 %A 张启城 %J 河北工业大学学报 %D 2018 %R 10.14081/j.cnki.hgdxb.2018.04.008 %X 利用仿真软件FIRE对汽油机颗粒捕集器(GPF)的工作过程进行模拟,研究了进气流量、载体孔目 数、尾气温度、载体长度等参数对GPF压降、过滤效率等工作特性的影响.结果表明:减小GPF的进气流量会 有效地降低载体前后的压降;提高载体的孔目数,GPF的前后压降会变大,内部温度和流速会相应降低,但可 以提高捕集效率;增加载体长度,可以提高捕集效率,但内部压降值和温度也会增大.</br>ThedimensionalcapturemodelofGPFissetupbyusingCFDsoftwareFIREandtheworkingprocessofthe GPFwassimulated.GPFpressuredropandfiltrationefficiencywerethemaincharacters,theywouldbeinfluencedby theparametersofGPFincludetheinletflowrate,thenumberofholesandlength.Thesimulationresultindicatesthatre? ducingtheGPFinletflowcaneffectivelyreducepressuredropofthecarrierandbyraisingthenumberofholes,GPF pressuredropwillbebigger,internaltemperatureandflowratewillbereduced,butcanimprovetheefficiencyofcap? ture.ByincreasingthelengthoftheGPF,captureefficiencyimproved,buttheinternalpressuredropvaluesandtempera? turealsoincreased. %K 汽油机微粒捕集器 %K 压降 %K 捕集效率 %K 模拟仿真< %K /br> %K gasolineparticulatefilter %K pressuredrop %K captureefficiency %K simulation %U http://zrxuebao.hebut.edu.cn//oa/darticle.aspx?type=view&id=201804008