| Summary: | 碩士 === 國立臺灣大學 === 土木工程研究所 === 82 === The purpose of this study is to investigate numerically the
hydraulic characteristics of a tidal river. To reflect the
unsteadiness and stratification of the flow pattern, water
continuity equation, momentum equations and salinity convection-
diffusion equation are solved in the model. Body fitted
coordinate and curvilinera coordinate systems are adopted to
generate grids and to reflect the irregularities of the
boundaryies. Split-operator approach method is adopted to
solved the governing equations. The equations are separated
into three portions, namely propagation, advection, diffusion,
and solved with different numerical schemes. Each solution is
verified with the analytical solutions, and the results are
quite accurate.
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