船舶最佳纵倾及节能  

Best trim and energy saving effect of ships

作　　者：王伟[1] 孙守超 郭春雨[1] 魏少鹏 

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2017年第5期1-4,共4页Applied Science and Technology

基　　金：国家自然科学基金项目(51209048;41176074;51409063);工信部高技术船舶科研项目(G014613002);哈尔滨工程大学青年骨干教师支持计划项目(HEUCFQ1408)

摘　　要：随着船舶节能理念的逐渐深入,纵倾优化的作用机理是研究的热点,目前主要采用数值计算和模型试验相结合的方法来研究船舶纵倾发生变化后,对于湿表面积、水线长度、水线面形状以及总阻力的影响。文中利用计算流体动力学(computational fluid dynamics,CFD)方法对KCS船进行不同纵倾角下的阻力预报,得到船舶的最佳纵倾角及其节能效果,同时分析了当船舶纵倾角度发生变化后对船体的水线面形状等的影响。结果表明,对于KCS当其以设计航速临近的速度航行时,其纵倾角度控制在尾倾0.84°左右时,其节能效果最好,约节能4%~6%。With the concept of ship energy saving gradually spreading,the optimization mechanism of trim is a hotspot of research,at present the main method of numerical calculation and model test are combined to study how the wet surface area,the waterline length,waterline shape and the total resistance will change with the ship trim.The study found that ship in a different speed and different ballast condition exists an optimal angle of trim with the minimum resistance. CFD（ computational fluid dynamics） method was used to analyze the KCS（ KRISO container ship） resistance under different trim angle,then get the best pitch angle of the ship and its energy-saving effect,and at the same time,the shape of hull waterline was discussed. Results show that KCS sailing under the speed nearly designed with the trim angle about 0.84° has the best energy-saving effect,which will reach about 4% ~ 6%.

关 键 词：船舶纵倾 阻力预报 计算流体动力学 KCS 湿表面积 水线长度 水线面形状 节能 

分 类 号：U673.3[交通运输工程—船舶及航道工程]