dc.rights.license | CC-BY-NC-ND | |
dc.contributor.advisor | de Swart, H.E. | |
dc.contributor.author | Verboven, L.C. | |
dc.date.accessioned | 2021-08-30T18:00:19Z | |
dc.date.available | 2021-08-30T18:00:19Z | |
dc.date.issued | 2021 | |
dc.identifier.uri | https://studenttheses.uu.nl/handle/20.500.12932/41334 | |
dc.description.abstract | Certain field observations indicate irregular tidal oscillations within almost enclosed
coastal basins connected to the sea through a narrow channel. Previous studies have
explained this using models of Helmholtz resonators which incorporate sloping basin
bottoms. These sloping bottoms trigger a nonlinear volume response to external tides
coming from the sea. These studies suggest that the nonlinear response of a sloping
basin bottom is more pronounced when the basin is near Helmholtz resonance, leading
to tides having multiple dynamical equilibria or even exhibit chaotic behaviour within
the basin.
However, situations where the almost enclosed basin is connected to the sea through
multiple channels has not gotten as much exposure in research. This leads, in general,
to multiple coupled oscillator equations.
This thesis aims to extend the model of the aforementioned articles to a system with two
connecting channels and where the coastal basin is, due to a natural barrier, split into
two sub-basins that are allowed to interact with each other. It is researched whether
similar or new nonlinear effects arise in the extended model.
The results imply that the nonlinearities in the extended model still causes, when near
Helmholtz resonance, multiple equilibria and chaotic behaviour. In addition, the results
suggest that multiple equilibria and chaotic effects may even occur for some basins only
if they interact which each other, and not when seperated from each other. | |
dc.description.sponsorship | Utrecht University | |
dc.format.extent | 2630390 | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | |
dc.title | The nonlinear response of a Helmholtz oscillator in an interacting, double tidal inlet system | |
dc.type.content | Bachelor Thesis | |
dc.rights.accessrights | Open Access | |
dc.subject.keywords | Helmholtz oscillator, Helmholtz resonance, tidal inlet system, nonlinear response, water sheds, chaos | |
dc.subject.courseuu | Natuur- en Sterrenkunde | |