Modeling of Bathymetry-Locked Residual Eddies in Well-Mixed Tidal Channels with Arbitrary Depth Variations

摘要: Abstract The concept of the in–out-type exchange flow in estuaries only applies to situations with significant freshwater discharge and/or elongated channels relatively simple variations depth and coastline along channel. In waterways complex bottom topography, flows may be replaced by residual eddies that are locked bathymetry. This paper develops an analytic model for such tidally induced eddies. allows arbitrary both along- across-channel directions. produces bathymetry features, similar observations Wassaw Sound using a ship-mounted ADCP. Analysis indicates problems “short” channel standing wave characteristics, circulation is significantly influenced advection. frictional effect, however, dominant propagation effect cannot uniformly neglected (i.e., it sometimes can still compete or reinforce advection...