On the numerical simulations of vortical cavitating flows around various hydrofoils-中国Betway体育网页登陆

摘要 Thispaperreviewsthenumericalmodelsofvariouscavitatingflowsaroundhydrofoils.Numericalmodelsrelatingtocavitationflows,includingmasstransfermodelsandturbulencemodels,aresummarizedatfirst.Thennumericalresultsandanalysisofflowcharacteristicsforthecavitatingflowsaroundtwistedhydrofoils,truncatedhydrofoilandtipleakagearediscussedrespectively.Formeanflowfields,ReynoldsaveragedNavier-Stokes(RANS)simulationassociatedwithakindofnonlinearturbulencemodelisfoundtobeaneconomicandrobustnumericalapproachfordifferentkindsofcavitatingflowsincludingcloudcavitation,tipcavitationandtipleakagecavitation.Topredictthefluctuationsofpressureandvelocity,largeeddysimulation(LES)anddetachededdysimulation(DES)aretwoeffectiveapproaches.Finally,afewopenquestionsareproposedforfutureresearch.

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On the numerical simulations of vortical cavitating flows around various hydrofoils

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