欢迎来到天天文库
浏览记录
ID:31934609
大小:8.15 MB
页数:90页
时间:2019-01-29
《防爆柴油机进气系统的cfd-分析》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、太原理工大学硕士研究生学位论文researchcontentisasf.ollows:Firstofall,a11alysistheStmctureofmeflameproofdieselengine’sairintakesystem,thenecessityoftheflamearrestera11dcontrastaRerexplosionprotectioneffectsonemissions.Second,then锄earresterstmcturewasoptimized行om似oaspects.An锄earresterdomestructureoptimization
2、,partmeflamearresterdomecylindrical;Second,optimizednameproofunitstmcture,onthebasisoftheoriginalmodelproposedtwoimproVedschemes,respectiVelyis6reelement印erturesectionissquareandcircle.Calculatedbysimulatingwhenstretchedn锄earresterdiVersioncoVerandremoVethegasnowincylinderpancanaVoidnamearres
3、terofeddycurrent;、再,illflreunitcircularaperl=uresectionbythe仃iallgletogasnowpressurelossinthef1锄earresteraresmaller,moreconducivetothesmoothnowofgas.Again,putfbnVardtoimproVet11eintakepipe’sstmcture.Lett11einletentranceoftheoriginalinletpipearrangethemiddleoftheoriginalinletpipe.Throu曲calcula
4、tionandanalysissimulation.WheninletentraJlceisdecoratedint11einte册ediatepositionoft11einletmanifoldthegasdistributionmoreunifbnn.Finally,contrastthegasmassflowrateofairintakesystembetWeenimproVedandmeoriginalsystem.Calculatedbysimulating血eimproVede丘.ectofinletairintal(esystem.Theoriginalsyste
5、mhasbeimproVement.EachcylinderofairinnowhaVeVa叫ingdegreesofincrease.IV太原理工大学硕士研究生学位论文K.正YWORDS:n砒neproofdieselengine,back—flrereliefValVe,fl锄eproofunit,airintakeSystem,simulationcalculationV太原理工大学硕士研究生学位论文Ⅵ太原理工大学硕士研究生学位论文目录摘要⋯..⋯⋯.⋯⋯......⋯...⋯....⋯⋯.⋯⋯⋯..⋯......⋯.IABSTRACT.⋯⋯⋯⋯....⋯⋯..⋯⋯.⋯⋯⋯
6、⋯⋯⋯⋯⋯.....III第一章绪论⋯.⋯.⋯.⋯⋯⋯.⋯.⋯⋯.⋯.⋯⋯⋯⋯⋯......⋯。11.1选题的背景和意义....⋯....⋯⋯....⋯..⋯⋯.⋯⋯⋯..⋯⋯11.2国内外防爆柴油机的研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯....⋯⋯21.2.1国外防爆柴油机的研究现状⋯⋯.⋯⋯⋯⋯⋯.⋯......⋯..21.2.2国内防爆柴油机的研究现状⋯⋯。⋯.⋯⋯⋯⋯⋯⋯..⋯⋯31.2本课题研究的主要内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.4第二章防爆柴油机进气系统流体理论基础⋯⋯⋯⋯⋯⋯⋯⋯⋯....⋯..72.1计算流体动力学理论.⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..72.1.1
7、流体动力学控制方程⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..⋯⋯.72.2进气系统有限元理论基础⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..92.2.1有限体积法.⋯⋯...⋯⋯⋯.⋯⋯⋯⋯⋯⋯⋯....⋯⋯92.2.2有限差分法.⋯⋯.....⋯.⋯⋯⋯..⋯⋯⋯⋯⋯...⋯。.102.2.3有限元法....⋯.......⋯....⋯⋯..⋯...⋯⋯......⋯..102.3CFD求解过程⋯.⋯.⋯⋯⋯⋯.⋯⋯⋯⋯⋯⋯⋯⋯..⋯..102.4本章小结⋯⋯..⋯⋯....⋯..⋯⋯..⋯⋯...⋯⋯⋯
此文档下载收益归作者所有