武汉地区基于自然通风优化的街区空间形态设计策略分析-analysis of design strategy of block space shape based on natural ventilation optimization in wuhan area.docx
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武汉地区基于自然通风优化的街区空间形态设计策略分析-analysis of design strategy of block space shape based on natural ventilation optimization in wuhan area
AbstractInrecentyears,therapiddevelopmentandexcessiveexpansionofcitiesresultinginthecityunderlyingsurfaceseriouslyartificilizedleadstoawildernessofbuildingsinsidecitiesespeciallyincitycenters,whichhasanadverseeffectuponnaturalventilationgivingrisetotheurbanheatislandeffectsincetheaccumulationofheat.Basedontheabove,thispaperresearchesquantitativelyintotherelationbetweennaturalventilationandexternalspaceformofurbanblocks,usingclimateofWuhancityasthebackgroundthroughviewpointsofnaturalventilationandintroducingthecitymorphologyindex.Thisresearchselectstwoindicatorsystems,theobstructionratioproposedinthe‘cityresidentialthermalenvironmentdesignstandard’,RugosityandPorosityproposedbyAdolphe,findsoutthemoresuitableindicatorsystemaccordingtotheapplicabilityinassessingthenaruralventilationeffect.Itthenanalysesthesimulationresultsofventilationinmodelsofdifferentstylesofurbanblocksthroughmethodsofnumericalsimulationandsensitivityanalysis,discussestherelationofnaturalventilation,RugosityandPorosity,andfinallyputsforwardthedesignstrategiestoimprovenaturalventilationofurbanblocks.Thispaperfurtherdemonstratesthevalidityofthedesignstrategiescombinedwithpracticalengineeringcases.Keywords:NaturalventilationRugosityPorosityobstructionratioUrbanmorphology目录摘要IAbstractII目录III1绪论11.1课题来源11.2研究背景11.3研究尺度界定与城市形态学指标的概念21.4研究目的及意义71.5研究内容和方法71.6国内外研究现状81.7论文框架122皱褶率、孔隙率与阻塞比对街区自然通风评价的适用性比较152.1研究概要152.2边界条件设定152.3皱褶率与通风阻塞比对街区自然通风评价的适用性比较分析152.4孔隙率与通风阻塞比对街区自然通风评价的适用性比较分析282.5本章小结363点式街区的自然通风模拟及敏感度分析373.1研究概要373.2边界条件设定373.3皱褶率对点式街区自然通风影响的模拟及敏感度分析373.4孔隙率对点式街区自然通风影响的模拟及敏感度分析423.5本章小结504板式街区的自然通风模拟及敏感度分析514.1研究概要514.2边界条件设定514.3皱褶率对板式街区自然通风影响的模拟及敏感度分析514.4孔隙率对板式街区自然通风影响的模拟及敏感度分析604.5本章小结645混合式街区的自然通风模拟及敏感度分析665.1研究概要665.2边界条件设定665.3皱褶率对混合式街区自然通风影响的模拟及敏感度分析665.4孔隙率对混合式街区自然通风影响的模拟及敏感度分析785.5平面形式对混合式街区自然通风影响的模拟及敏感度分析875.6本章小结926居住区自然通风设计策略及案例研究936.1研究概要936.2案例背景936.3边界条件设定936.4自然通风案例现状分析936.5改善案例自然通风设计策略966.6小结997结论和展望1007.1结论1007.2本研究的思考和探索1017.3未来研究的展望101致谢102参考文献103附录1硕士期间发表论文目录1071绪论1.1课题来源气候作为城
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