Boundary Conditions of Tidal Model at River Mouthby Suphat Vongvisessomjai, Asian Inst of Technology, Thailand,
Santi Charuskumchornkul, Asian Inst of Technology, Thailand,
Document Type: Proceeding Paper
Part of: Hydraulic Engineering
A small grid is required to schematize irregular shape of shoreline in the vicinity of river mouth which limits the modeling area to be small. Tidal records along the boundary show no variation as the tides are long waves while data of currents along the boundary are in general not available. A methodology is developed in which a complementary tidal model of sea region with larger grid is used to generate tidal currents along the open boundary for the major model. Both are two dimensional depth averaged finite difference models. This approach is successfully applied to compute circulation patterns in the vicinity of the mouth of the Chao Phraya River, Thailand.
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