STUDY ON FINITE ELEMENT METHODS OF THE EXTRUDATE SWELL PROBLEM(Ⅰ)NEWTONIAN FLUID-中国Betway体育网页登陆

摘要 TheproblemofacreepingflowofNewtonianfluidextrudedfromaplaneslitoracircularpipe.intheabsenceofgravity,issimulatedsuccessfullybyusingthecontinuous-pressure-elementmethod,thediscontinuous-pressure-elementmethod,theconsistantpenaltymethod,thereducedintegrationpenaltymethodandthemodifiedreducedintegrationpenaltymethodproposedbyOden.Throughcomparisonsbetweenthesemethods,itisconvincedthatthediscontinuous-pressureinterpolationschemesresultinmoreaccuratemassconservationand,consequently,morerapidconvergenceofthefree-surfaceiterationthanthecontinuousonedoes.Thereducedintegrationpenaltymethodcanfurtherreducethecostofcomputationwhileretainingsufficientaccuracyofthesolution.

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STUDY ON FINITE ELEMENT METHODS OF THE EXTRUDATE SWELL PROBLEM(Ⅰ)NEWTONIAN FLUID

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