ON THE 3-D PULSATING SOURCE OF MICHELL TYPE WITH FORWARD SPEED

作     者：Miao Guo-ping Liu Ying-zhong Yang Qin-zheng Liu Zi-yuan(Shanghai Jiao Tong Univ., shanghai 200030 P. R. China) 

作者机构：Shanghai Jiaotong Univ Shanghai China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：1995年第7卷第2期

页      面：84-95页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0824[工学-船舶与海洋工程] 0701[理学-数学] 082401[工学-船舶与海洋结构物设计制造] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0801[工学-力学（可授工学、理学学位）] 

主　　题：D pulsating source with forward speed radiative behavior of the source,Fourier transform 

摘      要：An expression of the 3-D pulsating source of Michell type with forward speed for infinite water depth is derived in the present paper based on the Fourier transformation and contour integration technique. Emphases are laid on the discussion of the mechanical feature of the source and the radiation behavior far from the source. The relative importance of each components of the pulsating source is discussed in detail. Compared with the commonly used pulsating source of Haskind type, the present expression has the merits of simplicity for numerical treatment and being more meaningful in its physical explanation. The Michell type expression of the 3-D pulsating source with forward speed can be widely used for the estimation of motions and wave forces for ships and offshore structures in waves with forward speed. The radiative behavior of the source in the far field may also give a reasonabel description of the radiation condition or the open boundary condition for other numerical methods, such as the Rankine source method etc.