A numerical model for tidal currents in the Changjiang River estuary

Zhao Shiqing

doi:10.1007/BF02850433

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A numerical model for tidal currents in the Changjiang River estuary

Updated：2023-05-16

- A numerical model for tidal currents in the Changjiang River estuary
- Journal of Oceanology and Limnology Vol. 4, Issue 2, Pages: 171-182(1986)
- Affiliations：
  
  Nanjing Hydraulic Research Institute
- Author bio：
- Funds：
- DOI：10.1007/BF02850433
  CLC：
- Published：1986
- Accepted：
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Shiqing, Z. A numerical model for tidal currents in the Changjiang River estuary., Chin. J. Ocean. Limnol. 4, 171–182 (1986). https://doi.org/10.1007/BF02850433
DOI：

Shiqing, Z. A numerical model for tidal currents in the Changjiang River estuary., Chin. J. Ocean. Limnol. 4, 171–182 (1986). https://doi.org/10.1007/BF02850433 DOI：

摘要

Abstract

A generalized finite difference scheme is presented for the solution of two-dimensioned tidal current equations (averaged over the depth of water). This method has been used to simulate the tidal currents in the Changjiang River estuary

with computed results being in good agreement with the field observations. The two-dimensional domain consists of triangular elements with acute angles. First- and second-order partial derivatives are defined at nodal points. In addition

the basic tidal current equations contain an extra term to account for horizontal eddy viscosity. The method has the great advantage of allowing a wide flexibility in configuration simulation

thereby exhibiting the capability to arbitrarily subdivide the region of interest as well as to provide a more accurate boundary shape

and what is more

it offers savings in computing costs.

关键词

Keywords

references

Zhao Shiqing and Zhang Jingchao, 1983. A Simple Mathematical Model for Two-Dimensional Tidal Currents.Journal of Nanjing Hydraulic Research Institute 2:15–23. (in Chinese with English abstract)

Kazuo Murakami, 1981. Numerical Simulation of Tidal Current by Means of Finite element Method.Technical Note of the Port & Harbour Research Institute (Ministry of Transport)404:1–95. (in Japanese with English abstract)

Shen Huanting and Pan Dingan, 1979. Characteristics of Tidal Currents in the Changjiang Estuary and their Influence on River Channel Evolution.Journal of East China Teachers University (Nature Science Edition)1:131–144. (in Chinese with English abstract)

Willian, G. Gray, 1977. An Efficient Finite Element Scheme for Two-Dimensional Surface Water Computation, Finite Elements in Water Resource. PP. 4–60.

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