›› 2017, Vol. 37 ›› Issue (5): 68-.doi: 10.16708/j.cnki.1000-758X.2017.0074

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Successiveoverrelaxationparallelalgorithmforsolvingcomplexelectricfieldinelectricthrusters

 HAN  Ya-Jie, XIA  Guang-Qing, WU  Qiu-Yun, CHEN  Liu-Wei, ZHOU  Nian-Dong, WEN  Zheng   

  1. 1StateKeyLaboratoryofStructureAnalysisforIndustrialEquipment,DalianUniversityofTechnology,Dalian116024,China
    2InstituteofTelecommunicationSatellite,ChinaAcademyofSpaceTechnology,Beijing100094,China
  • Received:2017-03-21 Revised:2017-08-09 Online:2017-10-25 Published:2017-09-12

Abstract: Atpresent,solvingthethreedimensionalPoissonequationofcomplexelectricfieldintheelectricthrusterstillhasthedisadvantagesofslownessandpoorparallelism.
Asuccessiveoverrelaxationparallel(PSOR)iterativealgorithmwasproposedtosolvethethreedimensionalPoissonequationbasedontheideaofdomaindecomposition.Thesolutionregionwasdividedintoseveralsubdomains.AndanumberofexplicitschemeswereconstructedbyusingtheSORmethod.Thenaccordingtothedifferentschemes,thesolvingequationsfordifferentiterativestepsweregivenforparallelcomputation.Thenumericalsimulationresultsshowthatthecalculationtimeisreducedbyatleasthalf.AndthePSORmethodhasmadegreatprogressinthecomputationspeedcomparedwiththetraditionaliterativescheme.

Key words: electricthruster, Poissonequation, successiveoverrelaxationiteration, parallelalgorithm