二维半理论的船舶运动及波浪增阻计算适用性研究  

Investigations on applicability of 2.5D theory for calculation of motions and added resistance of ship advancing in waves

作　　者：李帅[1] 朱仁传[1] 缪国平 洪亮[1] 李裕龙[1] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240 [2]高新船舶与深海开发装备协同创新中心,上海200240

出　　处：《水动力学研究与进展（A辑）》2017年第2期148-157,共10页Chinese Journal of Hydrodynamics

基　　金：国家重点基础研究发展计划项目(2014CB046203);国家自然科学基金(51479117,51579147)资助~~

摘　　要：波浪增阻是计算船舶能效指标中气象因子w_f的关键。该文基于二维半理论(又称高速细长体理论)实现了船舶运动响应预报并采用辐射能量法开发了波阻增加计算程序。通过对不同航速下Wigley III和S175船的水动力、运动和波浪增阻的细致计算与分析,并与切片理论和三维航速修正法求解的结果及试验值进行了比较,验证该方法的可靠性和适用性。研究表明二维半理论适用于船舶运动与波浪增阻的计算,相较于工程上常用的切片理论和航速修正方法,计算结果准确性适用性更高,为船舶波阻增加预报提供了快速有效的手段。Added wave resistance is crucial for calculating the ship＇s meteorological coefficient w_f in EEDI. Hydrodynamic forces and ship motions are carried out by 2.5D theory（also known as the high-speed slender body theory）, and added wave resistance of ship is evaluated by the radiation energy method via the developed codes. Ship motions and added wave resistances of Wigley III hull and S175 containership with various forward speeds are investigated and analyzed. The numerical results are validated for the models by comparing them with experimental data and other publication data. From the investigation, present method has better accuracy and applicability than the conventional engineering methods by the strip theory or the threedimensional speed correction method. It provides a rapid and efficient approach to estimate added resistance of ships in waves.

关 键 词：二维半理论 辐射能量法 波浪增阻 船舶运动 

分 类 号：U661.22[交通运输工程—船舶及航道工程]