高速方尾船兴波阻力的一种理论预报方法  

The theoretical prediction of wave resistance of high-speed ship with a transom stern

作　　者：李志恒[1] 祝海勇[1] 

机构地区：[1]中国舰船研究设计中心,湖北武汉430064

出　　处：《舰船科学技术》2013年第4期58-60,87,共4页Ship Science and Technology

摘　　要：应用经典薄船理论,以Michell兴波阻力积分公式为基础,针对高速船的方尾船型特点,采用"虚长度"法,编制了方尾船兴波阻力的计算程序。即在方尾后增加一个虚拟附体以使尾部封闭,通过对NPL船模系列(包括3b,4a,4b,4c,5a,5b,5c,6a,6b,6c共10条船型)的文献数据进行分析总结,得到一个计算虚长度的公式;对代号分别为3b,4b,5b,6b的4种单体船型兴波阻力进行数值计算,并与文献中的实验数据进行比较。结果显示,本文方法具有较高精度,适合于工程上方尾船兴波阻力的快速预报。A numerical method for calculating the wave resistance of the high-speed ship has been improved,which is based on the classical thin-ship theory and the Michell＇s wave resistance integral by placing the planar arrays of sources on the local hull centre-lines. The virtual appendage model is employed to correct the transom stern effects. A formula for calculating the re-attachment length is obtained by analyzing experimental data of ten ship models of 3b, 4a, 4b, 4c, 5a, 5b, 5c, 6a, 6b, 6c. Feasibility and reliability of computation model is demonstrated by the comparison between numerical results and experimental data of NPL series high-speed monohulls of 3b,4b,5b ,6b,this method is proven to be effective prediction of wave resistance of high-speed ship.

关 键 词：虚长度 高速 方尾船 兴波阻力 

分 类 号：U661.3[交通运输工程—船舶及航道工程]