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1、哈尔滨工业大学本科毕业设计（论文）摘要本文为了探究导管螺旋桨数值模拟的网格无关性，使用了网格划分软件Pointwise、Autogrid5进行网格制作、流体分析软件CFX进行数值模拟。先对二维翼型的网格无关性进行探究，后观察导管螺旋桨是否符合翼型得到的趋势。首先，通过三组二维翼型的数值模拟与实验值的对比，验证了本文使用的数值方法的可靠性；其次，探究了不同最小壁面厚度、网格的结构化和非结构化对翼型网格无关性的影响；之后，探究了不同网格增长率、单侧翼面点数以及一种形式的分块网格对翼型网格无关性的影响；最后，验证最小壁面厚度和单侧翼面点数对二维翼型的影响规律，在导管螺旋桨上是
2、否可行。关键词：网格无关性；翼型；导管螺旋桨IV哈尔滨工业大学本科毕业设计（论文）AbstractThispaperinordertoexploregridindependenceofductedpropellergridindependence,usingPointwiseandAutogrid5,botharegridsoftware,forgeneratingthemesh,andusingCFX,afluidanalysissoftware,tosimulateflowfields.Afterthepaperexploresthegridindependence
3、oftwo-dimensionalairfoil,itobserveswhetherthetrendoftheductedpropellerisinlinewiththeairfoil.Firstofall,throughthenumericalsimulationofthreegroupsoftwo-dimensionalairfoilwithexperimentalvaluecontrast,verifythereliabilityofthenumericalmethodusedinthispaper;Second,exploringtheminimumwallth
4、ickness,differentgridofstructuredandunstructuredeffectsonairfoilgridindependence;Later,exploresthedifferentgridpointsofgrowthrate,singlewingsurface,aformofblockgrideffectsonairfoilgridindependence;Finally,verifytheminimumwallthicknessandsingleflanksurfacepointsontheinfluencelawoftwo-dime
5、nsionalairfoil,ontheshroudedpropellerisworkable.Keywords：gridindependence,airfoil,ductedpropellerIV哈尔滨工业大学本科毕业设计（论文）目录摘要............................................................................................................................IAbstract...................................
6、..........................................................................................II第1章绪论.............................................................................................................11.1课题背景及研究的目的和意义.................................................................
7、...........11.1.1课题的背景.....................................................................................................11.1.2课题的目的及意义.........................................................................................21.2国内外在该方向的研究现状及分析...........................
