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简介：Theanalysisofthesolutionoffluidnetworkmodeliscarriedouttomatchtheneedofgraphicallymodularauto-modellingforpowerplantsimulatorsbecauseofthesymmetryandsparsityofthelinearsystemofequations,anewmethodofimprovedGausseliminationispresentedforthesolutionoflargescalematrices.ComparisonofthenewmethodwiththeclassicalGausseliminationmethod,theGauss-Seideliterativemethodaregiven.Theresultsshowthatthealgorithmprovidedisbetterthantheothersandissuitableforauto-modellingoffluidnetowrksofpowerplants.

简介：本文介绍了利用AutoCAD软件演示物理教学的方法，可促进教学改革，提高教学质量。

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简介：Thecontrollableactivethermo-atmospherecombustor(CATAC)hasbecomeautilizableandeffectivefacilitybecauseitbenefitstheopticaldiagnosticsandmodeling.Thispaperpresentsthemodelingresearchoftheauto-ignitionandflamesoftheH2/N2(H2/CH4/N2,orH2/H2O2/N2)mixtureonaCATAC,andshowscurvesvaryingwithtemperaturesofauto-ignitiondelay,theheightofthesiteofauto-ignitionofliftedflames,andflamelift-offheight.Theresultsofauto-ignitiondelayandthelift-offheightarecomparedtheexperimentalresultstovalidatethemodel.Aturningpointcanbeseenoneachcurve,identifiedwithcriteriontemperature.Itcanbeconcludedthatwhentheco-flowtemperatureishigherthanthecriteriontemperature,theauto-ignitionandliftedflameofthemixturearenotstable.Conversely,belowthecriteriontemperature,themixturewillauto-igniteinastablefashion.Stabilizationmechanismsofauto-ignitionandliftedflamesareanalyzedintermsofthecriteriontemperature.