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Glenn R. Flierl. Trevino Lozano, Carlos H. (Carlos Horatio), 1971- Massachusetts Institute of Technology. Dept. of Earth, Atmospheric, and Planetary Sciences. Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences 2010-08-30T14:26:06Z 2010-08-30T14:26:06Z 1999 1999 http://hdl.handle.net/1721.1/57668 44623155 S.M., Joint Program in Physical Oceanography (Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 1999 Includes bibliographical references (p. 59). Several numerical experiments were carried out to study the effects of chaotic behavior on the net tracer flux across a channel. The flow is given by a superposition of two propagating waves. The domain was set up so that a mode-I wave would fit on it, and the perturbation was a mode-4 wave. The experiments were carried out using a grid model with a second-order upwind differencing scheme. Simple Newtonian diffusion was used, and the velocities were calculated from a stream-function satisfying no normal flow boundary conditions. The experiments showed a small increase in the flux does appear due to the chaotic behavior, but this effect is only around 5% when the flux is compared to the one obtained from a pure 1-mode wave system. In contrast there is a difference of around 20% when the pure mode- 1 wave is compared to the pure mode-4 wave, the first one being more transportive. The chaotic behavior of the system is described in detail and a Lagrangian experiment was carried out as well to examine the motion of the particles and to explore a different approach to describing the dispersion of a tracer. by Carlos H. Trevino Lozano. S.M. 59 p. eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Earth, Atmospheric, and Planetary Sciences. Effects of the chaotic behavior of a superposition of waves in the flux across a channel Thesis application/pdf false Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="eccac981-7a9d-4fc1-afbd-44eca5a0954a"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Effects of the chaotic behavior of a superposition of waves in the flux across a channel</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>1999</PublicationDate> <Authors> <Author> <DisplayName>Trevino Lozano, Carlos H. (Carlos Horatio), 1971-</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Earth, Atmospheric, and Planetary Sciences.</Keyword> <Abstract>Several numerical experiments were carried out to study the effects of chaotic behavior on the net tracer flux across a channel. The flow is given by a superposition of two propagating waves. The domain was set up so that a mode-I wave would fit on it, and the perturbation was a mode-4 wave. The experiments were carried out using a grid model with a second-order upwind differencing scheme. Simple Newtonian diffusion was used, and the velocities were calculated from a stream-function satisfying no normal flow boundary conditions. The experiments showed a small increase in the flux does appear due to the chaotic behavior, but this effect is only around 5% when the flux is compared to the one obtained from a pure 1-mode wave system. In contrast there is a difference of around 20% when the pure mode- 1 wave is compared to the pure mode-4 wave, the first one being more transportive. The chaotic behavior of the system is described in detail and a Lagrangian experiment was carried out as well to examine the motion of the particles and to explore a different approach to describing the dispersion of a tracer.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>