EEMCS

Home > Publications
Home University of Twente
Education
Research
Prospective Students
Jobs
Publications
Intranet (internal)
 
 Nederlands
 Contact
 Search
 Organisation

EEMCS EPrints Service


23056 Revisiting Hele-Shaw dynamics to better understand beach evolution
Home Policy Brochure Browse Search User Area Contact Help

Bokhove, O. and van der Horn, A.J. and van der Meer, R.M. and Gagarina, E. and Zweers, W. and Thornton, A.R. (2013) Revisiting Hele-Shaw dynamics to better understand beach evolution. Memorandum 2004, Department of Applied Mathematics, University of Twente, Enschede. ISSN 1874-4850

Full text available as:

PDF

990 Kb
Open Access



Official URL: http://www.math.utwente.nl/publications

Exported to Metis

Abstract

Wave action, particularly during storms, drives the evo lution of beaches. Beach evolution by non-linear break ing waves is poorly understood due to its three-dimensional character, the range of scales involved, and our limited understanding of particle-wave interactions. We show how a novel, three-phase extension to the classic “Hele-Shaw” laboratory experiment can be designed that creates beach morphologies with breaking waves in a quasi-two-dimensional setting. Our thin Hele-Shaw cell simplifies the inherent complexity of three-phase dynamics: all dynamics become clearly visible and measurable. We show that beaches can be created in tens of minutes by several types of breaking waves, with about one-second periods. Quasi-steady beach morphologies emerge as function of initial water depth, at-rest bed level and wave-maker frequency. These are classified mathematically and lead to beaches, berms and sand bars.

Item Type:Internal Report (Memorandum)
Research Group:EWI-MACS: Mathematics of Computational Science
Research Program:MESA-General
Research Project:A numerical Wave Tank for Complex Wave and Current Interactions, Compatible Mathematical Models for Coastal Hydrodynamics, Flow of granular matter in thin layers pipes and open channels
Uncontrolled Keywords:Water waves, Granular Flows, Coastal engineering, Geophysical fluid dynamics
ID Code:23056
Deposited On:04 February 2013
More Information:statisticsmetis

Export this item as:

To correct this item please ask your editor

Repository Staff Only: edit this item