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Homotopic method applied to solving the flow field in a gas centrifuge

机译:适用于求解气体离心机的流场的同型方法

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Toinvestigatetheflowfieldinahyper-speedgascentrifuge,ahybriddifferenceschemeisusedtodiscretizetheaxisymmetricNavier-Stokesequation.Sourcetermsareincludedtosimulatetheinjectionandextractionofgas,alsothemechanicaldriveofthescoops.Thenonlinearityisobviousasthedriveisstrong.ANewtoniterationusedtosolvetheequationsystembecomessensitivetotheinitialguessofthesolution,whichmakesitdifficulttoconverge.Ahomotopicmethodwithself-adaptivestepsisadoptedtocopewiththisproblemandtoacceleratetheiterationprocess.Numericalexperimentssimulatingdifferentstrengthsofscoopdriveprovetheeffectivenessofthealgorithm...
机译:Toinvestigatetheflowfieldinahyper-speedgascentrifuge,ahybriddifferenceschemeisusedtodiscretizetheaxisymmetricNavier-Stokesequation.Sourcetermsareincludedtosimulatetheinjectionandextractionofgas,alsothemechanicaldriveofthescoops.Thenonlinearityisobviousasthedriveisstrong.ANewtoniterationusedtosolvetheequationsystembecomessensitivetotheinitialguessofthesolution,whichmakesitdifficulttoconverge.Ahomotopicmethodwithself-adaptivestepsisadoptedtocopewiththisproblemandtoacceleratetheiterationprocess.Numericalexperimentssimulatingdifferentstrengthsofscoopdriveprovetheeffectivenessofthealgorithm ...

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