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1、TH27INTERNATIONALCONGRESSOFTHEAERONAUTICALSCIENCESNEWMULTI-BLOCKCOMPUTATIONALMETHODOLOGYBYCHARACTERISTICINTERFACECONDITIONSWITHHIGH-ORDERINTERPOLATIONTakahiroSumi*,TakujiKutotaki**andJunHiyama***TottoriUniversity,Japan,**JapanAerospaceExplorationAgency,JapanKeywords:Interfacecond
2、itions,Characteristics,Interpolation,Multi-block,High-ordercomputationAbstractcontrollable,however,mostoftheirapplicationsarelimitedinsimplegeometries.IncurvilinearInthepreviousstudy,theauthorsproposedthecoordinatesaroundcomplexgeometry,generalizedcharacteristicinterfacecondition
3、sconstructionofidealsmoothstructuredgridsis(GCIC)forhigh-orderfinitedifferencemulti-generallydifficulttask,becausemetricblockcomputationonstructuredgrids.ThecontinuitiescannotbeensuredperfectlyintheGCICcanrealizenon-overlappedconnectionwholecomputationaldomain,andasaresult,betwee
4、nadjacentsub-domains(blocks)andnumericalinstabilitiesmaybeobservedaroundallowsmetricdiscontinuitiesontheinterfacethesingularpoints.boundary,however,thegridlinesmustbeAsoneofthepromisingcandidatessolvingcontinuousontheinterface.Inthisstudy,intheaboveproblem,oversetgridmethodscanbe
5、ordertoenhancetheflexibilityoftheGCIC,bytakenintoaccount.Shereretal.haveproposedaincorporatingthehigh-orderinterpolationhigh-orderfinite-differenceoversetalgorismonmethodsuchastheLagrangeorB-splinethestructuredgrids.[1]Theyemployhigh-orderinterpolation,theGCIC+I(GCICwithfinitedif
6、ferenceschemesandhigh-orderinterpolation)arenewlydevelopedandinterpolationmethods,andinvestigatetheirproposed.TheGCIC+Icanrealizecapabilitiesindetail.However,theoversetgriddiscontinuousgridlineconnectiononthemethodsessentiallyhavedifficultyandinterfaceboundary,andthegridspatialco
7、mplexityondomainarrangementsandresolutioncanbearbitrarilychangedineachnumericalproceduresespeciallyin3Dproblems.sub-domain.Inthisarticle,theirtheoreticalOntheotherhand,theauthorshaveconceptisbrieflypresented,andsuitableproposedanothermulti-blockcomputationalnumericaltestanalysisi
8、sconductedinordertomethodologywiththegen
