A Simple Quasi-three Dimensional Model of Longshore Currents Over Arbitrary Profile

A Simple Quasi-three Dimensional Model of Longshore Currents Over Arbitrary Profile
Author :
Publisher :
Total Pages : 52
Release :
ISBN-10 : UCSD:31822020657128
ISBN-13 :
Rating : 4/5 (28 Downloads)

Book Synopsis A Simple Quasi-three Dimensional Model of Longshore Currents Over Arbitrary Profile by : Antonio Fernando Garcez Faria

Download or read book A Simple Quasi-three Dimensional Model of Longshore Currents Over Arbitrary Profile written by Antonio Fernando Garcez Faria and published by . This book was released on 1995 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The long shore current maximum observed in the trough of a barred beach during the nearshore dynamics experiment DELILAH at Duck, North Carolina, is not predicted by present theory. The simplest longshore curren models balance cross-shore changes in the alongshore wave momentum (radiation stress) with the alongshore bottom shear stress. Waves break over the bar, reform in the trough and again break on the foreshore resulting in changes in the radiation stress, which predicts two jets, one over the bar and the other at the foreshore, which does not agree with the observed current maximum in the trough. The advection of the momentum of the longshore current by mean cross-shore currents as a source of momentum mixing is investigated. The longshore current is strongest toward the surface and decreasing to zero at the bottom. The cross-shore mean current has an onshore transport in the wave crest/trough region and an offshore transport beneath (undertow). The net interaction can induce significant lateral mixing of the alongshore momentum of the mean currents, which is shown using a simplified three- dimension model of nearshore currents to explain much of the differences with observations.


A Simple Quasi-three Dimensional Model of Longshore Currents Over Arbitrary Profile Related Books

A Simple Quasi-three Dimensional Model of Longshore Currents Over Arbitrary Profile
Language: en
Pages: 52
Authors: Antonio Fernando Garcez Faria
Categories: Ocean circulation
Type: BOOK - Published: 1995 - Publisher:

DOWNLOAD EBOOK

The long shore current maximum observed in the trough of a barred beach during the nearshore dynamics experiment DELILAH at Duck, North Carolina, is not predict
Compilation of Theses Abstracts, October 1994-September 1995
Language: en
Pages: 560
Authors: United States. Naval Postgraduate School, Monterey, CA.
Categories: Dissertations, Academic
Type: BOOK - Published: 1995 - Publisher:

DOWNLOAD EBOOK

Government Reports Announcements & Index
Language: en
Pages: 586
Authors:
Categories: Science
Type: BOOK - Published: 1996 - Publisher:

DOWNLOAD EBOOK

Bibliography of Scientific and Industrial Reports
Language: en
Pages: 922
Authors:
Categories: Science
Type: BOOK - Published: 1970 - Publisher:

DOWNLOAD EBOOK

Selected Water Resources Abstracts
Language: en
Pages: 768
Authors:
Categories: Water
Type: BOOK - Published: 1981 - Publisher:

DOWNLOAD EBOOK