ISSN1006－7167CN31－1707/TＲESEAＲCHANDEXPLOＲATIONINLABOＲATOＲY第41卷第12期Vol．41No．122022年12月Dec．2022DOI:10．19927/j．cnki．syyt．2022．12．046空气纵掠热板的边界层测定实验设计与教学朱赤，幸文婷，叶晓明(华中科技大学能源与动力工程学院，武汉430074)摘要:边界层理论在能源动力、航空航天、船舶海洋、气候等学科中具有广泛应用。为了加强相关专业本科生对工程传热学对流换热章节中空气外掠平板边界层特征的感性认识，能源学院实验中心开设了空气纵掠热板的边界层测定实验。实验内容包括:空气纵掠热板边界层内部速度和温度分布测定、局部对流换热系数计算、边界层轮廓测定、无量纲准则式计算4个部分。通过该实验教学，可让学生对空气纵掠平板速度边界层和热边界层内的参数分布、边界层厚度变化、换热能力以及努谢尔特数Nu和雷诺数Ｒe计算有了初步了解，同时可提高对温度和速度测量仪器的熟练使用。关键词:传热学;边界层;对流换热;实验教学;实验装置中图分类号:TK124文献标志码:A文章编号:1006－7167(2022)12－0244－04ExperimentalDesignandTeachingofBoundaryLayerDeterminationonanAir-sweptHeatedFlatPlateZHUChi，XINGWenting，YEXiaoming(SchoolofEnergyandPowerEngineering，HuazhongUniversityofScienceandTechnology，Wuhan430074，China)Abstract:Boundarylayertheoryhasbeenwidelyappliedinenergyandpower，aerospace，shipbuildingandoceanography，climatescienceandotherdisciplines．Inordertoenhanceundergraduates’perceptualunderstandingofboundarylayercharacteristicsofairsweptplateinconvectionheattransferchapterof“EngineeringHeatTransfer”，theExperimentalTeachingCenterofEnergyCollegesetsup“BoundarylayerMeasurementExperimentofAirSweptaHeatedPlate”．Theexperimentconsistsoffourparts:“determinationofvelocityandtemperaturedistributioninsidetheboundarylayerofairsweptacrossaheatedflatplate”，“calculationoflocalconvectiveheattransfercoefficient”，“determinationofboundarylayerprofile”and“calculationofnon-dimensionalcriterion”．Throughtheexperimentalteaching，studentscanhaveapreliminaryunderstandingofthedistributionofparametersinthevelocityboundarylayerandthermalboundarylayerofairsweptflatplate，thechangeofboundarylayerthickness，heattr...
