Numerical simulation of motion and deformation of ring bubble along body surface＊-中国Betway体育网页登陆

摘要 Numericalsimulationforfluidflowoveranattachedrigidbodywithadeformableringbubbleisanalyzedbasedonthevelocitypotentialtheorytogetherwiththeboundaryelementmethod(BEM).Theanalysisisfocusedontheaxisymmetriccase.Thebubblesurfaceistreatedasawelldefinedair-liquidinterfaceandistrackedbyamixedEulerian-Lagrangianmethod;Thepointsofintersectionbetweenthebubbleandbodyaretreated,speciallyinthenumericalprocedure.Theauxiliaryfunctionmethodisadoptedtocalculatethepressureonthebodysurfaceandintheflowfield.Theconvergencestudyisundertakentoassessthedevelopednumericalmethodandthecomputationcode.Somecasestudiesareundertakeninwhichtheinteractionsbetweenthebubble/bodyandtheincomingflowfieldaresimulated.Theeffectsofvariousphysicalparametersontheinteractionsareinvestigated.

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Numerical simulation of motion and deformation of ring bubble along body surface＊

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