SEMI-LAGRANGIAN ADVECTIVE SCHEMES AND THEIR NONLINEAR COMPUTATIONAL CHAOS

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摘要 Inthispaper,wehavesuggestedseveralinterpolatingformulaewhichareconvinientforvectorcom-puterstoperformvectorcalculation.Analysisshowsthatforasimpleadvectiveproblem,thesemi-Lagrangianschemesconstructedwiththeseformulaearelinearlyunconditionallystable.Moreover,wehavediscussedthenonlinearcomputationalchaosinthesemi-Lagrangianschemes.Itisfoundthatforasimplenonlinearadvectiveproblem,wecanintroducephysicallyunrealanddirectinteractionofthreeormorewaves.Nu-mericaltestsindicatethatthisphenomenonhascertaininfluenceonthesimulatedresultsoftwo-dimensionalBenardconvection.
机构地区 不详
出处 《气象学报:英文版》 1990年3期
出版日期 1990年03月13日(中国期刊网平台首次上网日期,不代表论文的发表时间)