Browsing WHOI Theses by Keyword "Fluid dynamics"
Now showing items 111 of 11

The dynamics of unsteady strait and sill flow
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 198204)The dynamics of steady and unsteady channel flow over large obstacles is studied analytically and numerically in an attempt to determine the applicability of classical hydraulic concepts to such flows. The study is motivated ... 
Eddy generation at a convex corner by a coastal current in a rotating system
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 199203)Rotating baroclinic and barotropic boundary currents flowing around a corner in the laboratory were studied in order to discover the circumstances under which eddies were produced at the corner. Such flows are reminiscent ... 
Estimating openocean boundary conditions : sensitivity studies
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 199508)The problem of estimating boundary and initial conditions for a regional openocean model is addressed here. With the objective of mimicking the SYNOP experiment in the Gulf Stream system, a meandering jet is modeled by ... 
An experimental study on mixing induced by gravity currents on a sloping bottom in a rotating fluid
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 200209)Mixing induced by gravity currents on a sloping bottom was studied through laboratory experiments in a rotating fluid. The dense fluid on the sloping bottom formed a gravity current that could be in regimes where the ... 
Geochemical and fluid dynamic investigations into the nature of chemical heterogeneity in the Earth's mantle
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 199209)Variations in the abundances of elements and radiogenic isotopes in mantle derived peridotites and volcanic rocks are chemical integrals over time, space, and process, which ultimately contain information about the role ... 
Hydraulics and instabilities of quasigeostrophic zonal flows
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 199409)The thesis addresses the applicability of traditional hydraulic theory to an unstable, midlatitude jet where the only wave present is the Rossby wave modified by shear. While others (Armi 1989, Pratt 1989, Haynes et ... 
Interaction of an eddy with a continental slope
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 199209)This study concerns the barotropic interactions between a mesoscale eddy and a straight monotonic bottom topography. Through simple to relatively complicated modeling effort, some of the fundamental properties of the ... 
A laboratory study of localized boundary mixing in a rotating stratified fluid
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 200302)Oceanic observations indicate that abyssal mixing is localized in regions of rough topography. How locally mixed fluid interacts with the ambient fluid is an open question. Laboratory experiments explore the interaction ... 
A model of a Mediterranean salt lens in external shear
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 199204)A pair of simple models representing the interaction of a continuously stratified fplane quasigeostrophic lens with a uniform external shear flow is examined. The study is motivated by the desire to understand the ... 
Predicting eddy detachment from thin jets
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 199108)Using a semigeostrophic, reduced gravity thin jet model, we analytically study the evolution of initial meanders into pinchedoff rings. The model used is similar to the path equation developed by Flierl and Robinson ... 
Response of a pendulum spar to 2dimensional random waves and a uniform current
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 197808)A linearized theory for the response of a circular pendulum spar in 2dimensional waves and a uniform current is developed. The linear forces on the cylinder are predicted using an approximate potential flow theory for ...