Numerical calculations are carried out for JD7704 simplified ducted propeller series and 19A ducted propeller series.Based on the investigations in paragraph 3,circumferential nonaveraged induced velocities on the duct and BTKI=0.43 are adopted for JD7704+KA,19a+KA propeller series.Corresponding results are shown in Figs.10- 12 and Figs.13- 16 for JD7704+KA and 19a+KA propeller series respectively. The“0.43 Cf- PS nav”in figures denotes that BTKI=0.43, the friction drag coefficient is computed by Prandtl- Schlichtin formula, and circumferential non- averaged induced velocities on the duct is applied.In addition,a ducted propeller with PF- W- C (P/D =1.236) propeller and PF- W- D duct provided by MARINTEK is also calculated. Results are described in Fig.17. Results obtained by the coupling method of lifting surface theory and panel method,“NAV_Wbs BEM/LSM”, are also given in the same
figure for comparison.“0.43 NAV BEM”means BTKI=0.43, non- averaged induced velocity on duct surface due to propeller and panel method are used in the calculation.
A numerical study is conducted on open water characteristics and the hydrodynamic
spindle torque of JD7704 duct together with JDC Controllable Pitch Propeller series
[13].Figs.18- 19 show the numerical and experimental results of JD7704 duct with JDC series at design condition, i.e. the blades have no rotation angle !! around the spindle axes. In this case BT-KI=0.48 is employed in the calculations as mentioned above.Fig.20 gives the hydrodynamic performances,including open water characteristics and spindle toque,of JD7704 +JDC7703 ducted CPP at design and off- design conditions. In figure,“BEM - 10, 0, 10 deg.”means that results are obtained by panel method at blade angle- 10, 0, and 10 degree.“LSM/BEM- 10, 0,10 deg.”means that corresponding results are obtained by coupled method of lifting surface theory and panel method
船舶专业术语英文缩写翻译
1.DWT:Dead Weight Tonnage(载重吨)2.MLB:Mini Land Bridge(小陆桥)3.MLD:Moulded Draft(模吃水)4.M\/E HP:Main Engine Horse Power(主机马力)5.M\/E RPM:Main Engine Rotation per Minute(主机转速 )
船舶英语单词解释
hull drafting 船体制图 statics of the ship 船舶静力学 structural mechanics of the ship 船舶结构力学 maneuver and swing of the ship 船舶操纵与摇摆 ship rapidity & theoretical mechanics 船舶快速性和理论力学 mechanics of materials 材料力学 hydromechanics 流体力学 船厂专业翻译,保证...
急求船舶专业英语翻译
International Carriage of Goods by Sea refers to the use of ships at sea through the channel in different countries and regions in the transportation of goods between the port modes of transport. International Carriage of Goods by Sea is characterized by large transport. The internationa...
船舶专业英语
ballast fire pump running 压载\/消防泵运行 steering gear running 舵机运行 steering gear st-by 舵机备用 smash pump running g\/e em"cy stop 应急发电机停止 em`cy fire pump start 应急消防泵启动 em`cy fire pump stop 应急消防泵停止 fan spply start 供风机启动 fan exhaust start 排风机...
船舶与海洋工程 专业 用英语怎么翻译?
船舶与海洋工程专业的英文:naval architecture and Marine Engineering Engineering 读法 英 [endʒɪ'nɪərɪŋ] 美 ['ɛndʒə'nɪrɪŋ] 1、n. 工程,工程学 2、v. 设计;管理(engineer的ing形式);建造 短语: 1、engineering design 工程设计 2、chemical engineering 化学工程 3、...
请帮忙翻译英语(船舶专业)
4 sets of alert signal are required transmitting to AMS system that fitted in engine room.
海员驾驶专业的各科目的英文翻译怎么说?
航海英语 navigation al English 航海学 ship navigation 船舶结构与设备 Structures and Equipment of Ships 气象与 海洋学 Meteorology and Oceanography 值班与 避碰 Duty and Anti- collision 海上货物运输 Carriage of Goods by Sea (注;以上全部为专有词汇)
求帆船各级别的英语翻译!!!急!!!
港口 port, harbor 汽船 steamer 偷渡者 stowaway 船舶 vessel 油轮 oil tanker 走私 smuggle 竹筏 bamboo raft 汽艇 power boat 触礁 strand 独木舟 dugout, canoe 舵 rudder 救生圈 life buoy 帆船 sail boat 锚 anchor 救生衣 life jacket 商船 merchant ship 锚鍊 chain 码头 wharf 货轮 freighter,...
船舶英语翻译,求大神帮忙,旁人绕道
arrangement plan (GAP) and shall be Owner’s supply. Upper deck hatch covers shall be of box folding type made of steel, operated by hydraulic cylinders,six (6) panels at each end, and two (2) middle panels shall be of lift away rolling type. In the open position, hatch ...
求一篇船舶专业的英文文献 最好附有中文翻译,一万字左右。急求。万分感...
Ship commissioning is the act or ceremony of placing a ship in active service, and may be regarded as a particular application of the general concepts and practices of project commissioning. The term is most commonly applied to the placing of a warship in active duty with its ...