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1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/288157406CentrifugalpumpimpellerdesignbyusingdirectinverseproblemiterationArticleinNongyeJixieXuebao/TransactionsoftheChineseSocietyofAgriculturalMachiner
2、y·July2010DOI:10.3969/j.issn.1000-1298.2010.07.007CITATIONSREADS131504authors,including:ShunshengCaoBaoshanZhuJiangsuUniversityTsinghuaUniversity130PUBLICATIONS1,152CITATIONS109PUBLICATIONS698CITATIONSSEEPROFILESEEPROFILESomeoftheauthorsofthispublication
3、arealsoworkingontheserelatedprojects:fluidmachineryViewprojectMetalNanoparticlesConfinedintheNanospaceofDouble-ShelledHollowSilicaSpheresforHighlyEfficientandSelectiveCatalysisViewprojectAllcontentfollowingthispagewasuploadedbyBaoshanZhuon03February2016.
4、Theuserhasrequestedenhancementofthedownloadedfile.2010年7月农业机械学报第41卷第7期DOI:10.3969/j.issn.1000-1298.2010.07.007*离心泵叶轮正反问题迭代设计方法谭磊曹树良桂绍波祝宝山(清华大学水沙科学与水利水电工程国家重点实验室,北京100084)【摘要】基于流体的连续方程和运动方程,建立了S1流面速度势函数方程和S2流面速度梯度方程,并通过两类相对流面的迭代求解完成了离心泵内部流场的正问题计算。基于正问题计算得
5、到的轴面流场,应用逐点积分法进行叶片绘型,在轴面上加厚叶片,在保角变换平面上修圆叶片头部,实现了离心泵叶轮的反问题设计。利用正问题计算的轴面流场进行反问题设计,将反问题设计得到的叶轮进行正问题计算,正反问题迭代计算直至收敛,得到最终设计的叶轮。该方法反问题设计所需的轴面速度采用叶轮正问题计算的结果,弥补了传统设计方法中轴面速度根据一元假定给出的缺陷,设计得到的叶轮负荷均匀、效率高、抗空化性能好,同时具有设计计算精度高、叶片表面光滑、数据齐全、便于数控机床加工制造等特点。关键词:离心泵叶轮流场计算设计中图
6、分类号:TH311文献标识码:A文章编号:1000-1298(2010)07-0030-06CentrifugalPumpImpellerDesignbyUsingDirectInverseProblemIterationTanLeiCaoShuliangGuiShaoboZhuBaoshan(StateKeyLaboratoryofHydroscienceandEngineering,TsinghuaUniversity,Beijing100084,China)AbstractBasedontheco
7、ntinuityandmotionequationsoffluid,thevelocitypotentialfunctionalequationoftheS1streamsurfaceandthevelocitygradientequationoftheS2streamsurfacewereestablished.Theflowfieldofthedirectproblemwassolvedbycalculatingthetwofamiliesofstreamsurfaces.Basedontheflo
8、wfieldofthedirectproblem,theinverseproblemofcentrifugalpumpindrawingbladeshapebypoint-by-pointintegration,thickeningbladeandsmoothingleadingedgeofthebladebyconformalmappingwasaccomplished.Byusingtheflowfieldofthedirectprob