Results 181 to 190 of about 8,712 (235)

Swash zone sediment fluxes: Field observations

Coastal Engineering, 2011
Abstract This paper describes newly obtained, high-frequency observations of beach face morphological change over numerous tidal cycles on a macrotidal sandy beach made using a large array of ultrasonic altimeters. These measurements enable the net cross-shore sediment fluxes associated with many thousands of individual swash events to be quantified.
C.E. Blenkinsopp, I.L. Turner, G. Masselink, P.E. Russell   +3 more
openaire   +1 more source

Surf and Swash Zone Hydrodynamics

1997
Abstract : The long-term goal is to improve understanding of the hydrodynamics of the near-shore motions on beaches, with particular reference to the zone where the incident waves break, form surf, and run-up on the beach to give a fluctuating shoreline.
Ib A. Svendsen, D. H. Peregrine
openaire   +1 more source

Hydrokinematic regions within the swash zone

Continental Shelf Research, 2007
Abstract A method for delimiting the swash zone and regions within is presented. Two regions are recognized and distinguished by their differing flow kinematics. The outer swash region involves wave-swash interactions and related processes, whereas the inner swash region consists of pure swash motion (i.e., free from interaction with subsequent waves)
Michael G. Hughes, Adrienne S. Moseley
openaire   +1 more source

Swash zone boundary conditions for long-wave models

Coastal Engineering, 2005
Abstract In this note, a description of swash zone boundary conditions for implementation in wave-resolving and wave-averaging long-wave models is given along with a discussion of the role of such conditions on the modelling of the entire surf zone hydro-morphodynamics.
BELLOTTI, GIORGIO, M. BROCCHINI
openaire   +2 more sources

Onshore-Offshore Swash Zone Properties

2001
Abstract : The goals of the project are to develop better understanding and predictive capability for non-linear time-dependent dynamics in the swash zone. Although sophisticated models for simulating swash hydrodynamic processes are available (a Navier-Stokes based swash model that implements the Volume of Fluid (VOF) method is being adapted under ...
openaire   +1 more source

Probabilistic-Deterministic Modelling of Swash Zone Morphology

Coastal Sediments '07, 2007
A probabilistic‐deterministic model for swash zone sediment transport is presented and applied to predict cross‐shore beach profile change under random waves. For accretionary conditions, inclusion of a random wave approach is essential for accurate representation of berm building processes. The model provides good estimates of beach volume changes for
T. E. Baldock, P. Kim Son, P. Manoonvoravong, M. P. Barnes, J. M. Alsina   +4 more
openaire   +1 more source

Numerical simulation of swash zone fluid accelerations

Journal of Geophysical Research: Oceans, 2007
A volume‐of‐fluid Navier‐Stokes solver incorporating a k‐ɛ closure model, NumErical Water FLUME (NEWFLUME) (Lin and Xu, 2005) is used to investigate the temporal and spatial structure of accelerations in the swash zone of steep beaches for surging, plunging, and nearly spilling waves.
Jack A. Puleo, Ali Farhadzadeh, Nobuhisa Kobayashi   +2 more
openaire   +1 more source

Hydrodinamics in the swash zone

2000
This paper describes a study of the hydrodynamics in the swash zone using an impermeable concrete beach in a laboratory flume. Analysis was made of the measurements achieved using level wave gauges and a laser Doppler velocimeter. From these measurements we could derive the mean motion and turbulence characteristics along the main flow direction in ...
PETTI, Marco, LONGO S.
openaire   +2 more sources

Beach-face evolution in the swash zone

Journal of Fluid Mechanics, 2010
We investigate swash on an erodible beach using the one-dimensional shallow-water equations fully coupled to a bed-evolution (Exner) equation. In particular, the dam-break/bore-collapse initial condition of Shen & Meyer (J. Fluid Mech., vol. 16, 1963, pp. 113–125) and Peregrine & Williams (J. Fluid Mech., vol. 440, 2001, pp.
Kelly, David Matthew, Dodd, Nick
openaire   +2 more sources

Swash Zone Dynamics due to Impulsive Waves

Journal of Waterway, Port, Coastal, and Ocean Engineering, 2011
On the basis of the recently proposed boundary value problem for the nonlinear shallow water equations and the extension of its available solutions for swash zone flows, we propose regression curves for the prediction of the maximum runup and the maximum rundown induced by impulsive waves on a frictionless, uniformly sloping beach.
Antuono Matteo, Brocchini Maurizio
openaire   +3 more sources