A Numerical Model for Typhoon Surges     

PAN Junning  WANG Hongchuan  YAO Guoquan Graduate Student  River  Harbour Department  Nanjing Hydraulic Research Institute  Nanjing  P. R. China.Engineer  River  Harbour Department  Nanjing Hydraulic Research Institute  Nanjing  P. R. China. Professor  River  Harbour Department  Nanjing Hydarulic Research Institute  Nanjing  P. R. China. 《中国海洋工程》1998,(2)

-In this paper a simple and efficient implicit finite-difference scheme is used for depth-averagedtwo-dimensional storm surge model.This finite-difference scheme is simpler and more efficient than the wi-dely-used ADI scheme.Accuracy analysis and stability analysis indicate that the scheme has two-order ac-curacy and is unconditionally stable when the grid size is constant.The present analysis results show thatthe scheme is of higher numerical accuracy than that introduced by Maa(1990).After tested by ideal mod-els,a calculation example of a real typhoon surge is carried out,the results of the numerical simulation co-incide well with the observed data and the accuracy is sufficient for engineering applications.  相似文献   

江苏地温水温场特征及地热异常分布规律与控制条件探讨   总被引：1，自引：0，他引：1  

赵剑畏  许家法 《江苏地质》1997,21(1):27-35

江苏地温分布的一般规律是：坳陷区地温高于隆起区，坳陷区中次级正向构造高于负向构造，隆起区中则相反，此外，地温随深度加大而增高，全省的第Ⅱ、Ⅲ、Ⅳ含水层中，共划盼出热水异常３５个，按平面分布的重叠性归并为２１个地热异常，其中大部分可归纳为个异常带，扬子准地台区是本省地热异常的主要分布区。  相似文献