不同二阶绕射波浪力理论公式的结果互比  

THE RESULTS CONTRAST WITH DIFFERENT THEORY FORMULA OF SECOND-ORDER DIFFRACTION WAVE FORCE

作　　者：严开[1] 邹志利[1] 李献丽[2] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024 [2]浙江国际海运职业技术学院,浙江舟山316002

出　　处：《工程力学》2013年第4期28-34,共7页Engineering Mechanics

基　　金：国家自然科学基金项目(51079024);国家创新群体科学基金项目(50921001)

摘　　要：该文研究了一种简单快速回转体的二阶波浪力计算方法,并给出了直立圆柱和截断圆柱的二阶波浪力的计算结果,将所得计算结果与其它3种不同的理论公式的结果进行了对比,验证了该文计算方法的正确性。因该文方法不涉及自由表面上无穷积分,表达式简单、计算速度快,所以更适合快速计算二阶速度势所引起的二阶波浪力。A simple and fast method to calculate the second-order wave force on an axisymmetric body is studied,and the results of the vertical cylinder and the truncated cylinder’s second-order wave force are attained.The results obtained with the other three different theoretical formulas are compared to verify the correctness of this method.Because this method does not involve a free surface infinite integral,and has a simple expression and high computational efficiency,it is more suitable for fast calculating second-order wave forces caused by second-order potential.

关 键 词：回转体 二阶速度势 二阶波浪力 自由表面条件 波浪 

分 类 号：TV131.2[水利工程—水力学及河流动力学]