【摘要】 <正> 在近岸海区,海面对台风的反应虽是为时数天的瞬态现象,但却是灾害性的,也是浅海中一个重要的动力学问题。国内外许多学者对这一现象的研究,大多为灾害性的水位预报方法,而对动力机制的探讨多以数值研究,即使有部分理论上的论述,也多局限于从全流概念(xoy平面)或考虑垂直Reynolds应力项(xoz平面)的二维空间问题。更多还原

【Abstract】 By means of a three-dimensional linear model with constant vertical eddy viscosity the surges and current caused by a model Typhoon wind fields are studied. The analytical solutions for elevation and horizontal current as vertical coordinate Z are obtained using Fourier and Laplace transforms. The field and curves of elevation, vertical distribution of current and current vectors are given. The results are discussed and compared with observations as well as with other authors’ conclusions. It is shown that a strong anticlockwise circulation at centre of storm and a weak clockwise one at the front and the back of storm are present at a horizonal section, whereas the anticlockwise circulation at the front of storm and the clockwise circulation at its back exist at a vertical section.更多还原