简介：Airentrappedinliquidmetalduringthemoldfillingprocessseriouslyaffectsthecastingquality,thusitisimportanttotrackitsbehaviorinthemoldcavity.Aliquid-gastwo-phaseflowmodelisdevelopedtodescribethemoldfillingprocessandpredicttheairentrapmentdefect.ThemodelisbasedonthecombinationofSOLAandLevelSetMethod.ThepressureandvelocityfieldsarecalculatedbySOLA,andtheinterfacemovementissimulatedbyLevelSetmethodasthemostcommoninterfacetrackingmethodinrecentyears.Inordertovalidatethefeasibilityofthemodel,theliquid-gastwo-phasesimulationresultsweretestedbythebrokendamproblemandtheS-shapedexperiment.ComparisonbetweentheexperimentsandsimulationresultsshowthatLevelSetmethodmightbeaverypromisingtoolintwo-phaseflowsimulationduringthemoldfillingprocess.

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