Derivation of a two-layer non-hydrostatic shallow water model

Date

1995-08

Authors

Contributor

Advisor

Department

Instructor

Depositor

Speaker

Researcher

Consultant

Interviewer

Narrator

Transcriber

Annotator

Journal Title

Journal ISSN

Volume Title

Publisher

Water Resources Research Center, University of Hawaii at Manoa

Volume

Number/Issue

Starting Page

Ending Page

Alternative Title

Abstract

A theoretical non-hydrostatic model is developed to describe the dynamics of a two-layer shallow water system in the presence of viscous and Coriolis effects. The Navier-Stokes equations are integrated over the water depth in each layer to obtain the layer-mean equations. To close the resulting equation set, perturbation expansions of the vertical momentum equation are used and the dynamic pressures are solved in terms of wave elevations and horizontal velocities. A preliminary analysis is also carried out and a result for the quasigeostrophic problems is given based on an previous study. Our final model is of the Bousinesq class which is nonlinear and dispersive, and includes the effects of surface wind stress, bottom friction, eddy diffusion and earth rotation. It is shown that our new model can be readily reduced to previous inviscid non-hydrostatic models. Our model can be used in numerical simulations to study real ocean problems such as hurricane generated waves, tidal induced current, and interactions among surface waves, internal waves and variable topographies.

Description

Keywords

Hydrodynamics--Mathematical models, Fluid dynamics—Mathematical models., Hydrodynamics--Mathematical models.

Citation

Feng Y. 1995. Derivation of a two-layer non-hydrostatic shallow water model. Honolulu (HI): Water Resources Research Center, University of Hawaii at Manoa. WRRC unedited report, 95-03.

Extent

x, 59 pages

Format

Geographic Location

Time Period

Related To

Theses for the degree of Master of Science (University of Hawaii at Manoa). Civil Engineering; no. 3088

Related To (URI)

Table of Contents

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.

Rights Holder

Local Contexts

Email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.