Author(s)

H.S. Jin & K.W. Chau

Abstract

An unsteady finite difference mathematical model of depth-averaged 2-d flow for Tolo Harbour in Hong Kong, based upon the numerically generated boundary-fitted orthogonal curvilinear grid system and the grid "block" technique, has been developed. In the model, a time splitting scheme, with 2 fraction steps: (1) advection and diffusion, (2) propagation along with source/sink terms, is employed to discretize the governing equations and the discrete algebraic equation set is solved iteratively with TDM A method. The model can overcome the Courant-Friedrichs-Lewy (CFL) stability criterion constraint and can allow the specification of a flexible initial condition. The model has been calibrated and verified with the three available measured

Keywords