简介：这份报纸报导巨浪的试验性、理论的学习发生在原型一台极端微离心的压缩机。作为第一步，10次缩放有40公里的一台极端微离心的压缩机的模型外部直径被设计并且生产。为有B参数的几不同价值的巨浪的短暂行为的详细试验性的调查被执行。试验性的结果在巨浪期间与非线性的lumped参数理论获得以便为微离心的压缩机验证理论巨浪模型的有效性的那些相比。作为结果，巨浪的相当不同的行为在实验并且在分析为B的不同价值出现了。关键词微离心的压缩机-澎湃-lumped参数模型CLC数字TK474.8+2

简介：Withanincreasingemphasisonrenewableenergyresources,wavepowertechnologyisbecomingoneoftherealisticsolutions.However,the2011tsunamiinJapanwasaharshreminderoftheferocityoftheocean.Itisknownthattsunamisarenearlyundetectableintheopenoceanbutasthewaveapproachestheshoreitsenergyiscompressed,creatinglargedestructivewaves.Thequestionposedhereiswhetheranoscillatingwavesurgeconverter(OWSC)couldwithstandtheforceofanincomingtsunami.Severaltoolsareusedtoprovideananswer:ananalytical3Dmodeldevelopedwithintheframeworkoflineartheory,anumericalmodelbasedonthenon-linearshallowwaterequationsandempiricalformulas.Numericalresultsshowthatrun-upanddraw-downcanbeamplifiedundersomecircumstances,leadingtoanOWSClyingondryground!

简介：在Bohai海湾的热带以外的暴风雨巨浪和淹没的一个二维的数字模型基于不稳定的流动海军司烧方程被造。模型包括了二节，一个人为暴风雨巨浪的模拟为在沿海的区域的暴风雨巨浪淹没的模拟的潮汐的水平和其它。当模仿暴风雨时，澎湃潮汐的水平，轮流出现的方向含蓄(ADI)方法被用于驱散并且解决2D暴风雨巨浪方程。在暴风雨巨浪淹没的模拟，2D不稳定的流动方程被驱散并且解决了使用有限体积方法(FVM)的无结构的格子。淹没和暴风雨巨浪的过程的Acoupling计算模式潮汐的水平变化被建议，当模仿并且预报暴风雨巨浪的过程时，因此，暴风雨巨浪淹没过程和区域能被计算潮汐的安装。而且，在Bohai海湾的热带以外的暴风雨巨浪和淹没用这个数字模型被模仿。模拟结果在对测量数据的好同意，它证明这个数字模型提供在Bohai海湾模仿并且预报暴风雨巨浪和淹没的一个新方法。

简介：ThesolutionfortheDuffingequationinanonlinearvibrationproblemisstudiedinthispaper.Clearly,inthecaseoftheperturbparameterbeingalargervalue,thetraditionalperturbationmethodisnolongervalidbuttheHomotopyPerturbationMethod（HPM）isapplicableusually.HPMisusedtosolvetheweakandstrongnonlineardifferentialequationsforfindingtheperturbedfrequencyoftheresponse.TheobtainedfrequenciesviaHPMandtheapproximatemethodhavegoodaccordanceforweakandstrongnonlineardifferentialequations.Additionally,thecalculatedresponsesbyuseoftheapproximatemethodarecomparedwiththeresponsesobtainedfromtheNumericalmethodinthetimehistoryoftheresponseandphaseplane.Theresultsrepresent~oodaccordancebetweenthem.

简介：Inthispaper,theparametrictropicalcyclonemodelsforstormsurgemodelingarefurtherdeveloped.Insteadoftangentialwindspeedviacyclostrophicbalanceandradialwindspeedusingasimpleformulationofdefectionangle,theanalyticalexpressionsoftangentialandradialwindspeeddistributionarederivedfromthegoverningmomentumequationsbasedonthegeneralsymmetricpressuredistributionofHollandandFujita.Theradiusofthemaximumwindisestimatedbytropicalcyclonewindstructurewhichischaracterizedbytheradialextentofspecialwindspeed.TheshapeparameterinthepressuremodelisestimatedbythedataofseveraltropicalcyclonesthatoccurredintheEastChinaSea.Finally,theFredcyclone(typhoon199417)iscalculated,andcomparisonsofthemeasuredandcalculatedairpressuresandwindspeedarepresented.

简介：在一台接近音速的离心的压缩机发展的流动的完整的体环模拟在二个稳定的操作点(山峰效率和近的巨浪)并且在路径期间被执行澎湃。以稳定的条件，流动地性质被比较用落后途径以前执行了的一个阶段与试验性的数据和数字模拟分析。关于舞台外套表演，一个优秀协议在数字结果之间被获得(两个与时间落后途径和完整体环的计算)并且实验。从完整体环的模拟，在到巨浪的从山峰效率的流动模式的变化被发现非常类似于用时间从模拟获得了那落后途径。特别地，如果操作的点是稳定的，流动证明是chorochronic.The完整体环模拟在法律在数字领域的出口使用了的throttle在一个唯一的小面值硬币以后被继续。集体流动，压力比率和效率然后显著地更加掉时间进步。模拟变得不稳定并且很好在进行之中的巨浪开始。澎湃的路径被发现由于根据从chorochronic模拟和实验得出的结论的更弥漫的翼的吸方面上的边界层分离的增大。但是当时间进行，流动失去它的chorochronic特性。在约7%转子速度点旋转的货摊房间在约5条革命开发并且导致巨浪。

简介：现在的纸给在SAFRAN直升飞机引擎设计并且造的一个离心的压缩机阶段获得的试验性的结果。压缩机由入口指南翼组成，被扫向後面的splitteredunshroudedimpeller，splitteredvaned光线的更弥漫、轴的插头指南翼。以前的数字模拟以部分旋转速度揭示了一个特别S形状压力上升特征并且在vaned预言了一个交替的流动模式光线在低质量更弥漫流动率。这个交替的流动模式包含二个邻近的翼段落。一个段落展出很低的动量和低压力恢复，而邻近的经过在经过入口有很高的动量并且高效地扩散。就算稳定性限制试验性地比数字地预言发生在更高集体的流动，试验性的大小证实压力上升特征的S形状。在低集体流动，交替的货摊模式由于高周波的压力传感器获得的数据被证实。当压缩机被扼杀，到不稳定性的路径被登记了，巨浪开始的第一种情形被给。压缩机首先经历一个稳定的交替的货摊在更弥漫。作为集体流动减少，交替的货摊在vaned放大并且被触发温和巨浪更弥漫。不稳定的行为源于交替的货摊和温和巨浪的相互作用。最后，当压力坡度变得太强壮时，交替的货摊征服，压缩机进入深巨浪。

简介：

简介：MuchattentionshouldbepaidtoalargeFPSOmooredpermanentlyinanoilfieldwithwaterdepthofonlyabout20m,sinceshallowwatereffectsonthehydrodynamicsmaybringaboutcollisionanddamage.A160kDWTFPSOwithapermanentsoftyokemooringsystemisinvestigatedwithvariousshallowwaterdepthsandfocusesarethelowfrequencysurgemotionandmooringload.ComputationfortheFPSOsystemismadebasedonlinear3-Dpotentialfluidtheoryandtime-domainnumericalsimulationmethod.CorrespondingmodeltestiscarriedoutintheoceanengineeringbasinofShanghaiJiaoTongUniversity.Itisshownthat,inthesurgenaturalperiod,lowfrequencysurgemotionandmooringforceincreaseremarkablywiththedecreaseofwaterdepth.Especially,thesmallertheratioofwaterdepthanddraughtis,thequickertheincreaseis.Theshallowwatereffectsshouldbetakenintoaccountcarefullyfordeterminingthedesignloadofasinglepointmooringsystem.

简介：联系沿海的结构的风险分析和评价最近是在沿海的保护的区域的热话题之一。在这份报纸，从三，关节的方面分别地归还多重负担，堤失败率和堤的时期连续风险预防，有关海堤高出的三个新风险分析方法被开发。导致高出的暴风雨巨浪的因素也在三个方法被考虑，是值得注意的。以便验证并且估计最新发达的方法的有效性和可靠性，确定的相互的信息被采用。借助于测试的大小写，不同优先的变量可能dividedly被选择，这能被发现，根据特殊工程申请或负担的优势的要求。基于优先的变量的选择，相关风险分析方法能成功地被用于实际工程。

简介：Thesurgeinpopularityfornon-traditionalcandidatesaheadoftheUS2016presidentialprimariesisnotonlyareflectionofthementalityofAmericansociety—onethatisincreasinglyanti-establishment,anti-globalizationandexclusionist—butitwillalsohaveasignificantimpactonelectionsinseveralways,includingcampaignagenda-setting,competitionbetweennominees,and,ofcourse,thefinalelectionresult.

简介：AnestednumericalstormsurgeforecastmodelfortheEastChinaSeaisdeveloped.Aone-wayrelaxingnestmethodisusedtoexchangetheinformationbetweencoarsegridandfinegrid.Intheinnerboundaryofthefinegridmodelatransitionareaissetuptorelaxtheforecastvariables.Thisensuresthattheforecastvariablesofthecoarsemodelmaytransittothoseoffinegridgradually,whichenhancesthemodelstability.Byusingthismodel,anumberofhindcastsandforecastareperformedforsixseverestormsurgescausedbytropicalcyclonesintheEastChinaSea.Theresultsshowgoodagreementwiththeobservations.

简介：ThispaperpresentstheHillinstabilityanalysisofTensionLegPlatform(TLP)tetherindeepsea.The2-Dnonlinearbeammodel,whichisundergoingcoupledaxialandtransversevibrations,isapplied.ThegoverningequationsarereducedtononlinearHillequationbyuseoftheGalerkin'smethodandthemodessuperpositionprinciple.TheHillinstabilitycharteduptolargeparametersisobtained.AnimportantparameterMisdefinedandcanbeexpressedasthefunctionsoftetherlength,theplatformsurgeandheavemotionamplitudes.Someexamplestudiesareperformedforvariousenvironmentalconditions.Theresultsdemonstratethatthenonlinearcouplingbetweentheaxialandtransversevibrationshasasignificanteffectontheresponseofstructure.ItneedstobeconsideredfortheaccuratedynamicanalysisoflongTLPtethersubjectedtothecombinedplatformsurgeandheavemotions.

简介：在在一台三阶段的轴的流动压缩机的转子blade-to-blade段落之间的不稳定的流动结构被不稳定的表演特征，casing墙压力变化和他们的小浪分析的详细大小试验性地调查。测试压缩机的主要特征是在系列连接到压缩机插头以便供应压缩或扩大波浪从的一台能力坦克设备压缩机下游。研究注意集中于同时发生的巨浪和旋转货摊的货摊以后的特征。在不稳定的表演曲线上操作点的压缩机的影响证明巨浪周期不规则地变化取决于不变的抵抗特征，并且墙压力变化的小浪分析的结果建议巨浪周期可以被旋转货摊房间结构有选择地在转子串联以内决定。

简介：Theformingmechanismsoflow-latitudecirculationcellsandprecipitationduringanEastAsiancoldsurgehavebeenstudiedbyusingafive-layerprimitiveequationmodel.Numericalexperimentsshowthatinmid-highlatitudes,thepropagationoftheEastAsianwintermonsoonisnearlyadryprocess;inlow-latitudes,theeffectsofcumuluscon-vectionintensifythenortheastmonsoonandnortheasttradewind;however,theyalsopreventtheintertropicalconvergencezone(ITCZ)fromfurthersouthwardinvasion,andstrengthenthemeridionalandzonalcellsoverEastAsia.NumericalresultsalsoindicatethatthewintermonsoonprecipitationinIndonesiaandNorthernAustraliacanexistindependently.BoththeSouthChinaSea(SCS)coldsurgeandtheWestPacificnortheastcross-equatorialtradewindareofimportancefortheformationoftheNorthernAustraliasummermonsoonanditsprecipitation.Numericalresultsshowthatthedevelopmentofcumulusconvection,triggeredbytheSCScoldsurge,isacrucialfactorinformingtheheavymonsoonprecipitationandlow-levelstationarydisturbancesinIndonesiaandBorneo.Thetropicaltopographyandnortheasttradewinddisturbancesonlyaffecttheintensityofprecipitationthere.