摘要
Performancecomparisonsarecomposedoftwoparts:thefirstpartcontainsthesystematicallyinvestigationofsixdifferenceschemesincludingCDS,FUDS,HDS,PLDS,SUDSandQUICKforconvectiontermsinnumericalfluidflowandheattransferbasedonthefinitevolumemethodusingstaggeredandRhie-Chow'smomentuminterpolationcollocatedgrids,thesecondpartcontainsthecomparativecomputationsbeingconductedonRhie-Chow'smomentuminterpolationcollocatedgridandThiart'sfinitedifferenceschemebasednonstaggeredgrid.Three3-Dcasesthathaveanalyticalorbechmarksolutionsareadopted.FortheFirstpart,theresultsofcomputationsindicatethat,allthesixschemeshavethesamenumericalaccuracywhenthediffusiontermisredominant,Withtheincreaseofconvection,theFUDS,HDSandPLDSalmosthavethesameaccuracyintwoofthosegridsystems,whiletheSUDSandQUICKhavehigheraccuracythantheformer,TheaccuracyofCDSissomethinginbetween,Forthesamunder-relaxationfactorsandconvergencecriterion,theconvergencerateofeachschemeonthosetwogridsystemsarenearlbyequalwiththatonthestaggeredgridbeingalittlebitfaster.ForQUICKandCDS,smooth,non-oscillatingsolutionscanbeobtaninedgridbeingalittlebitfaster,ForQUICKandCDS,smooth,non-oscillatingsolutionscanbeobtainedevenwhenlocalPecletnumbermaybeaslargeas31.2-31.3,Forthesecondpart,itisconcludedthatsimplifiedcollocatedgridsystemispreferablefromnumericalaccuracy,gridPecletnumberlimit,sensitivitytotheunderrelaxationfactorandthefreedominchoosingfinitedifferenceschemeforconvectionterm.
出版日期
1999年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
