肖人彬, 陈材侃. 有限水深势流计算的下潜源法及圆球绕流水底效应分析[J]. 工程力学, 1993, 10(2): 123-131.
引用本文: 肖人彬, 陈材侃. 有限水深势流计算的下潜源法及圆球绕流水底效应分析[J]. 工程力学, 1993, 10(2): 123-131.
Xiao Renbin, Chen Caikan. THE SUBMERGED SOURCE METHOD FOR CALCULATING POTENTIAL FLOW IN FINITE DEPTH WATER AND ANALYSIS OF WATER BOTTOM EFFECTS ON A SPHERE[J]. Engineering Mechanics, 1993, 10(2): 123-131.
Citation: Xiao Renbin, Chen Caikan. THE SUBMERGED SOURCE METHOD FOR CALCULATING POTENTIAL FLOW IN FINITE DEPTH WATER AND ANALYSIS OF WATER BOTTOM EFFECTS ON A SPHERE[J]. Engineering Mechanics, 1993, 10(2): 123-131.

有限水深势流计算的下潜源法及圆球绕流水底效应分析

THE SUBMERGED SOURCE METHOD FOR CALCULATING POTENTIAL FLOW IN FINITE DEPTH WATER AND ANALYSIS OF WATER BOTTOM EFFECTS ON A SPHERE

  • 摘要: 本文采用下潜源思想改进的H-S方法,运用“平面镜像原理”对有限水深中的任意形状无升力体绕流问题进行了研究,并编制了相应的程序以圆球绕流为例进行了数值计算。文中首先概述了下潜源法的基本思想,给出了有限水深的格林函数表达式。然后介绍了数值计算要点和若干技巧,对计算结果进行了详细分析。最后总结了下潜源法的特点,并深讨了水底效应的作用。

     

    Abstract: In this paper, H-S method is improved by the idea of sub merged sources and the nonlifting potential flow problem of arbitrary shape bodies in finite depth water is studied by the plane mirror principle.The corresponding computer program is worked out. A sphere is taken as an example for numerical calculation. Firstly, the fundamentalidea of submerged source method is introduces and the Green functionexpression for the case of finite depth water is presented. Then some details and skills in numerical calculations are stated. Discussion on the calculation results arc also made. Finally, the advantages of the submerged source method arc summerized and the functions of water bottom effects on a sphere arc discussed.

     

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