Tidal dynamics and dispersion around coastal headlands
Signell, Richard P.
MetadataShow full item record
LocationGay Head, MA
The dynamics of shallow tidal currents and tide-induced dispersion are investigated around coastal headlands that have alongshore length scales that are comparable to or less than the tidal excursion. Depth-averaged shallow water equations forced by oscillatory flow are solved numerically for Gaussian headlands. The tidal flows around these headlands are shown to be characterized by flow separation and. transient eddy formation. Idealized models of flow separation and the transport and damping of vorticity away from the headland explain much of the observed behavior. The characteristics of the separated wake are compared with known results from the study of viscous flow around bluff bodies. The kinematics of particle dispersion in the numerical solutions is described and analyzed.
Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution September 1989
Suggested CitationThesis: Signell, Richard P., "Tidal dynamics and dispersion around coastal headlands", 1989-09, DOI:10.1575/1912/1822, https://hdl.handle.net/1912/1822
Showing items related by title, author, creator and subject.
May, Paul Wesley (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1979-05)Concern with the impact of human activities on the coastal region of the world's oceans has elicited interest in the so-called "coastal boundary layer"-that band of water adjacent to the coast where ocean currents ...
Orescanin, Mara M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2015-09)Observations, theoretical models, and a numerical model (ADCIRC) are used to investigate the effects of tides, waves, bay bathymetry, and changing inlet geometry on the hydrodynamics of the multiple-inlet Katama system, ...
Salles, Paulo (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2001-02)The importance of the persistence of multiple inlets in coastal systems is fundamental for issues such as water quality, navigability, and beach/barrier stability. In long embayments, having extended residence times, the ...