简介：文章给出了与实船设备接口一致的仿真本船动态信息输出方案以及AIS接口目标船数据NMEA0183报文采集、解析并利用数据库对信息进行存储的方案，设计了统一时间基准的数据库关联检索方法，并由此提出了虚拟航海仪器界面、海图平面态势、三维视景相结合实时再现的模拟器架构方案，具有一定的应用价值。

简介：Inthepresentwork,computationalsimulationswasmadeusingANSYSCFXtopredicttheimprovementsinfilmcoolingperformancewithdualtrench.Dual-trenchconfigurationconsistsoftwotrenchestogether,onewidertrenchandtheotherisnarrowtrenchthatextrudedfromthewiderone.Severalblowingratiosintherange(0.5:5)wereinvestigated.Thepitch-to-diameterratioof2.775isused.Byusingthedualtrenchconfiguration,thecoolantjetimpactedthetrenchwalltwotimesallowingincreasingthespreadingofcoolantlaterallyinthetrench,reducingjetvelocityandjetcompletelycoveredonthesurface.Theresultsindicatethatthisconfigurationincreasedadiabaticeffectivenessasblowingratioincreased.Thespatiallyaveragedadiabaticeffectivenessreached57.6%foratM=2.Noobservedfilmblow-offatallblowingratios.Theadiabaticfilmeffectivenessofdualtrenchcaseoutperformedthenarrowtrenchcase,laidbackfan-shapedhole,fan-shapedholeandcylinderholeatdifferentblowingratios.

简介：Themainchallengeforcontainerportsistheplanningrequiredforberthingcontainershipswhiledockedinport.Growthofcontainerizationiscreatingproblemsforportsandcontainerterminalsastheyreachtheircapacitylimitsofvariousresourceswhichincreasinglyleadstotrafficandportcongestion.Goodplanningandmanagementofcontainerterminaloperationsreduceswaitingtimeforlinerships.Reducingthewaitingtimeimprovestheterminal’sproductivityanddecreasestheportdifficulties.Twoimportantkeystoreducingwaitingtimewithberthallocationaredeterminingsuitableaccesschanneldepthsandincreasingthenumberofberthswhichinthispaperarestudiedandanalyzedaspracticalsolutions.Simulationbasedanalysisistheonlywaytounderstandhowvariousresourcesinteractwitheachotherandhowtheyareaffectedintheberthingtimeofships.WeusedtheEnterpriseDynamicssoftwaretoproducesimulationmodelsduetothecomplexityandnatureoftheproblems.WefurtherpresentcasestudyforberthallocationsimulationofthebiggestcontainerterminalinIranandtheoptimumaccesschanneldepthandthenumberofberthsareobtainedfromsimulationresults.Theresultsshowasignificantreductioninthewaitingtimeforcontainershipsandcanbeusefulformajorfunctionsinoperationsanddevelopmentofcontainershipterminals.

简介：在TRANSASNTPRO4000航海模拟平台上，尝试通过设置相同环境下不同船模按相同船速进行蛇形绕标以及同一船模在同一环境下按不同船速进行蛇形绕标的模拟实验，通过测试比较，分析总结结果，探索绕标场地设置的最佳方法．

简介：圆柱绕流问题对于研究海上浮基风电平台在波浪和海流作用下的动力特性以及开发深海风能具有重要的理论和工程应用价值，很多不可压缩流体力学数值模拟方法都基于圆柱绕流的实验或计算结果进行验证。基于自适应时间步长理论及小雷诺数（Re=100）情况下，采用有限体积法，借助FLUENT软件中的用户自定义（UDF）功能，通过二次开发在FLUENT中实现圆柱绕流的数值模拟，并对计算结果与先前的研究结果作了比较，依此来验证时间步长自适应技术和精细边界层网格设计的合理性。计算结果表明了该方法能有效获得准确的流体动力学参数并提高数值模拟计算精度，为该领域的深入研究提供依据。