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Numerical simulation of costal current and sediment transport around the island of O'ahu

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Item Summary

Title: Numerical simulation of costal current and sediment transport around the island of O'ahu
Authors: Liu, Jianping
Advisor: Teng, Michelle H
Issue Date: Aug 2003
Publisher: University of Hawaii at Manoa
Abstract: For coastal hazards related to sediment transport, Oahu has experienced serious problems of both beach erosion and sand accumulation. There have been many useful field studies to observe sediment transport around Oahu, however, thus far, studies involving numerical modeling and prediction of sediment transport in Hawaii have been relatively limited. The objective of the present study is to validate an accurate hydrodynamic model and an efficient computer simulation package for predicting sediment transport and the associated erosion and deposition processes that are suitable for application to Hawaii and other insular coastal waters in the Pacific Basin. Our numerical study involves several modules including: analyzing seasonal variation of wave condition based on the NOAA/WAM data and the buoy data, modeling wave transformation from deep water to shallow water based on an improved parabolic wave model, simulation of sediment transport based on a set of newly developed phase averaged shallow water equation and advection-diffusion transport equation in coastal water, and prediction of topographical change due to sediment transport. Sediment transport pattern around the entire Island of Oahu on a coarse scale and detailed sediment transport rate and topographical change on a fine scale in Kailua Bay as a case study are simulated. The simulated results are compared with the available field observations and show promising agreement.
Description: xii, 85 leaves
Rights: All UHM dissertations and 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 from the copyright owner.
Appears in Collections:M.S. - Civil Engineering

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