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Numerical Modeling of Ebb-Dominant Tidal Flow in the Mokpo Coastal Zone  

Jung, Tae-Sung (Department of Civil & Environmental Engineering, Hannam University)
Choi, Jong-Hwa (Department of Civil & Environmental Engineering, Hannam University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.22, no.5, 2010 , pp. 333-343 More about this Journal
Abstract
In Mokpo coastal zone, the characteristics showing ebb-dominant tidal flow was confirmed by analysis of observed tide and tidal currents, Physical factors occurring ebb-dominant flow were reviewed. Influence of critical depth for drying, bottom shear stress, coastal reclamation, tidal amplitude, nonlinear tide, and eddy viscosity on the change of ebb-dominant flow was investigated by applying a two-dimensional circulation model. The simulation results for a variety of conditions showed that eddy viscosity and critical depth for drying does little or no impact on the generation of asymmetric flow. Strong bottom friction stress makes ebb-dominant flow clearly. Change of tidal flat into land swells ebb- dominant flow, and change of tidal flat into sea disappears ebb-dominant flow. Nonlinear tides play a decisive role in the generation of asymmetrical tidal flow. Non-linear tides should be included in the open boundary conditions of hydrodynamic modeling in the Mokpo coastal zone.
Keywords
Tidal flow; Tide model; Ebb-dominant flow; Asymmetric tidal flow; Mokpo coastal zone;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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