Effects of the chaotic behavior of a superposition of waves in the flux across a channel
Name
44623155-MIT.pdf
Description
Full printable version
Size
5.83 MB
Format
Adobe PDF
Checksum (MD5)
76fb51bef329142e2bab33577105f34e
Author(s)
Trevino Lozano, Carlos H. (Carlos Horatio), 1971-
Advisor(s)
Glenn R. Flierl.
Date Issued
1999
Publisher
Massachusetts Institute of Technology
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.
Description
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).
Subjects
Earth, Atmospheric, and Planetary Sciences.
MIT Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Terms of Use
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.
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.
Persistent DSpace Link
