波浪任意方向入射情况下小尺度矩形桩柱惯性力系数的解析解  

AN ANALYTICAL S0LUTI0N OF INERTIAL COEFFICIENTS F0R SMALL RECTANGULAR PILES UNDER WAVES AT ANY ANGULAR INCIDENCE

作　　者：黄河宁[1] 

机构地区：[1]国家海洋局海洋环境保护研究所

出　　处：《海岸工程》1990年第2期8-14,共7页Coastal Engineering

摘　　要：本文利用保角变换和渐近匹配展开法给出了波浪任意方向入射情况下小尺度矩形桩柱惯性力系数的解析解。计算结果表明,对于矩形桩柱,以往在二维平面振荡流情况下得到的惯性力系数比波浪情况下的惯性力系数要小10％左右,因此采用平面振荡流情况得到的惯性力系数计算波浪荷载是偏于不安全的,在设计中应予以注意。An analytical solution of inertial coefficients for small rectangular pi- les under waves at any angular incidence is presented by making use of the conformal transformation and the asymptotically matching expansion method The results show that for rectangular piles, the inertial coefficienst obtained in the case of two-dimensional oscillating flows are smaller than those obtained in the case of waves by about 10%. Therefore, in the desigh of offshore structures, it should be noted that using C_M obtained in the case of plane oscillating flows will give underestimation of wave forces.

关 键 词：波浪 矩形桩柱 惯性力系数 解析解 

分 类 号：O353.2[理学—流体力学]