喷水推进三体船流场与阻力预报

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1、卜白一ABSTRACTAstheexploitationoftheoceanresources，differentkindsofhigh-performanceshipcomeout，Amongthoseships，thetrimaranaremorepopular．Theyhavebetterresistancebecauseoftheirspecialshape．Besides，theirareasofthedeckaresuperiortoanyotherkindswhentheyareforcivilormilitaryuse．Theflowdomainandresistanc

2、eisanalyzedbyviscoushydrodynamicsaimingatdiscussingthemethodoftheresistanceprediction·Theinfluenceofwater-jetOntheresistanceofthetrimaranisresearched．TheresultofthisdissertationcanbeaguidetOthedesignandoptimizationoftrimaran．Inthisdissertationtheapplicabilityofunstructuredgridisanalyzedasregards

3、thecharacteristicoftrimaranadoptingwaterjet．Theinfluenceoftheresistanceofturbulentmodeionthepredictionf．orthemonohuiiisinvestigated．Theflowdomainandtheresistanceofthetrimaranadoptingwater—jetispredictedfortheselectedturbulentmodelandthemeshmodeisregulargridandunstructuredgrid．Thepressuredistribu

4、tionoftheIeanandthelipofwater-jetisresearchedandcompared．Theflowdomainandthehvdrodynamiccharacteristicbetweenthemainhullandthe2Water-jetthrustersanddifferenttypesofthesternisconsidered．Theflowdomainneartheaxial-flowisalsoincluded．Theflowdomainandresistanceofthetrimaranispredictedfor3sterntypesan

5、ddifferentconfigurationofjet．Ingeneralwater-jethasasignificantinfluenceOntheflowdomainaroundthetrimaranespeciallyaroundthestern．AndtheresistanceisincreasedcomparedtOtheonewithoutWater—ietthrusters．Theinfluenceoftheresistanceisdifferentwiththetypeofthevessel．Theminimumresistanceincreaseisbelow5％a

6、ndthemaximumincreaseISupto30}％-40％．Keywords：trimaran；resistance；water-jet；numericalsimulation；哈尔滨I’烈人学硕十’学忙论文．’{．、J卜

7、，‘·喷水推进埘■体日{}15H力硬J圳f；

8、流场的影响目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯··1ABSTRACT⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯··3目录⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯1第1章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

9、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯··l1．1课题研究的背景和意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯·l1．2三体船和喷水推进器的优越，阽⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯·l1．3三体J{}{}的发展现况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一21．4喷水推进器在船舶领域的应刚⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯·41．4．1喷水推进器在民船上的应用⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41．4．2喷水推进器在军船卜的应用⋯⋯⋯