Author(s)

S. Guillou & K.D. Nguyen

Abstract

This paper presents a Finite-Volume Technique (FVT) to calculate coastal flows in complex geometry. Cartesian unit-width discharge components are chosen as dependant variables, and are placed with collocated Node-Center arrangements. A treatment of the Poisson's equation is used to avoid the pressure oscillations. We present here some test cases to validate our model. 1 Introduction It is well known that in resolving the 2-D Shallow Water Equation (SWE) as well as the Navier-Stokes equations (NSE), the choice of calculating mesh with appropriate variable arrangement is an important problem. The use of a collocated arrangement can produce checkerboard splitting or 2Ax os- cillations. Until 1983, the only way to avoid this problem was the use of staggered grid. That is,

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