Results 141 to 150 of about 597 (184)

Video measurement of swash zone hydrodynamics

Geomorphology, 1999
A new technique for recording two-dimensional uprush and backwash depth profiles using standard analogue camcorder technology is introduced. This technique has the potential to provide low cost, high frequency, high resolution measurements of individual swash events.
Matthew Foote, Diane Horn
openaire   +1 more source

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

NUMERICAL MODELLING OF SWASH ZONE HYDRODYNAMICS

Coastal Engineering 2002, 2003
Abstract : The swash zone is the area of the nearshore that is intermittently covered and uncovered by wave run-up. Since swash hydrodynamics control the evolution of beach morphology, understanding these motions is of paramount importance. Typical studies of swash zone hydrodynamics involve the deployment of several instruments to measure the swash ...
Jack A. Puleo, K. Todd Holland, Don N. Slinn, Ernie Smith, Bret M. Webb   +4 more
openaire   +1 more source

Turbulence in the swash zone and in the surf zone: a review

2002
This paper reviews mainly conceptual models and experimental work, in the field and in the laboratory, dedicated during the last decades to studying turbulence of breaking waves and bores moving in very shallow water and in the swash zone. The phenomena associated with vorticity and turbulence structures measured are summarised, including the ...
LONGO, Sandro Giovanni, PETTI M., LOSADA I. J.   +2 more
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Numerical investigation of swash zone hydrodynamics

Science China Technological Sciences, 2013
This paper presents a novel numerical model using a fully three-dimensional (3D), incompressible, two-phase flow Navier-Stokes (NS) solver, which are discretized by the finite volume method. A high-resolution STACS-VOF method is used to capture the interface between the air and water phases.
ChangBo Jiang, Bin Deng, ShiXiong Hu, HanSong Tang   +3 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 ...
M. Petti, LONGO, Sandro Giovanni
openaire   +4 more sources

Swash zone sediment transport modes

Marine Geology, 1994
Abstract The result of field experiments, designed to investigate the relative proportions of bedload and suspended load, are described. The ratio of bedload to suspended sediment load in the swash zone is examined in both swash and backwash on four beaches by measuring the amounts collected in a sediment trap.
Diane P Horn, Travis Mason
openaire   +1 more source

Radiocesium in the swash zones off the coast of the Japan Sea

Applied Radiation and Isotopes, 2018
Radiocesium concentrations were measured in seawater and sediment samples collected in the swash zones in Ishikawa and Niigata prefectures, off the coast of Japan Sea opposite to the side where TEPCO Fukushima dai-ichi Nuclear Power Plant (FDNPP) is located in September 2016 and August 2017, five to six years after the accident.
Hyoe, Takata, Mutsuo, Inoue, Yuhei, Shirotani, Natsumi, Kudo   +3 more
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Swash zone response under various wave regimes

Journal of Hydraulic Research, 2011
The modelling of swash zone (SZ) sediment transport and the resulting morphodynamics have been areas of active research over the last decade. However, many details are still to be understood, whose knowledge will be greatly advanced by the collection of high-quality data under the controlled large-scale laboratory conditions.
Vicinanza, D., Baldock, T. E., Contestabile, P., Alsina, J.M. Cáceres, I., Brocchini, M., Conley, D., Andersen, T.L., Frigaard, P. and Ciavola, P.   +17 more
openaire   +5 more sources

High-frequency sediment-level oscillations in the swash zone

Marine Geology, 1984
Sediment-level oscillations with heights of about 6 cm and shore-normal lengths of order 10 m have been measured in the swash zone of a high-energy, coarse-sand beach. Crests of oscillations were shore parallel and continuous alongshore. The oscillations were of such low steepness (height-to-length ratio approximately 0.006) that they were difficult to
Asbury H. Sallenger, Bruce M. Richmond
openaire   +1 more source