Showing papers in "Coastal Engineering in 2016"

TL;DR: Survey-grade UAVs that incorporate internal RTK-GPS for high accuracy positioning and requiring a single operator only to safely deploy in the field, remove the need for separate and time-consuming on-ground surveying of ground control points (GCPs), previously required during post-deployment data processing.

TL;DR: In this article, the effect of vegetation on wave damping under severe storm conditions, based on a combination of field measurements and numerical modelling, is analyzed and validated using the new field data.

TL;DR: The Sand Engine peninsula, a highly concentrated nourishment of 17 million m3 of sand in the shape of a sandy hook and protruding 1 km from shore, was measured intensively on a monthly scale in the first 18 months after completion as discussed by the authors.

TL;DR: In this paper, a composite simulation of 2D and 3D physical block model tests was conducted for subaerial landslide-tsunamis with a composite (experimental-numerical) modeling approach.

TL;DR: In this paper, the effects of four densities of vegetation cover (none, low, medium, high) on the movement of sediment along two beach-dune profiles (with and without a berm), under three storm conditions (mild, moderate and intense).

TL;DR: In this article, the impact of tsunami bores on a square prism model having different orientations to the flow direction was investigated in a 14m long, 1.2m wide and 0.8m deep wave flume equipped with an automatic gate designed to generate a tsunami bore.

TL;DR: In this paper, a new parameterisation for runup on gravel beaches is proposed, which is based on the run-up parameterization for run-down on gravel sand. But this parameterization is not suitable for run up on sand dunes.

TL;DR: In this article, a new analytical formulation for the evaluation of wave damping under the combined effect of waves and both following and opposing currents is presented, which allows the derivation of analytical expressions for the vegetation drag coefficient as a function of wave-damping parameters.

TL;DR: In this article, the authors present an equation with terms representing all phenomena affecting shoreline change including Bruun-rule recession, onshore sand transport, sand sources and sinks, and longshore transport gradients.

TL;DR: In this paper, a decade-long effort to estimate nearshore (20m depth) wave conditions based on offshore buoy observations along the California coast is described, and the buoy-driven wave model shows significant skill at most validation sites, but prediction errors for individual swell or sea events can be large.

TL;DR: In this paper, a new library of turbulence models for application to multiphase flows has been developed and is assessed for numerical efficiency and accuracy by comparing against existing laboratory data for surface elevation, velocity and turbulent kinetic energy profiles.

TL;DR: In this article, a probabilistic Bayesian Network (BN) is proposed to predict the impact of a storm on sandy coast by using the hydraulic boundary conditions, characteristics of the coastal zone, and onshore hazards.

TL;DR: In this article, an integrated Finite Element Method (FEM) model is proposed to investigate the dynamic seabed response for several specific pipeline layouts and to simulate the pipeline stability under waves loading.

TL;DR: In this paper, a new "equivalent slope" concept was introduced to obtain an estimation of average wave overtopping discharges on sea dikes with shallow and very shallow foreshores.

TL;DR: In this article, a numerical wave model is used to transform deep water buoy spectra to the nearshore to evaluate the accuracy of static (bathtub) and hydrodynamic coastal flood modeling methodologies.

TL;DR: In this article, an improved weakly compressible smoothed particle hydrodynamic (WCSPH) model is developed to model wave motions and turbulent flows through porous structures, which is validated by available numerical results and experimental data for dam-break wave passing through permeable dam.

TL;DR: In this article, a suite of numerical experiments using XBeach demonstrate reasonable skill in reproducing wave runup observations in dissipative settings, explore the relative influence of seasonal to interannual variability in nearshore morphology on runup and its constitutive components, and illustrate differences between empirical and numerically modeled estimates of runup.

TL;DR: In this article, a new method is presented to characterize the randomness of the fault slip in terms of the moment magnitude, peak slip location, and a fault slip shape distribution parameterized as a Gaussian distribution.

TL;DR: In this article, an improved coupling method of smoothed particle hydrodynamics (SPH) and element bending group (EBG) is developed for modeling the interaction of viscous flows with free surface and flexible structures with free and fixed ends.

TL;DR: In this paper, the authors investigated the mitigation of storm tides by coastal wetlands by enhancing a well-established three-dimensional hydrodynamic model to include vegetation effects on mean flow and turbulence quantities.

TL;DR: In this article, the role of individual vegetation parameters in this water-vegetation interaction was evaluated by conducting drag force measurements under a wide range of wave loadings in a large wave flume, where artificial vegetation elements were used to manipulate stiffness, frontal area in still water and material volume as a proxy for biomass.

TL;DR: In this article, a technique is presented that uses standard marine navigational radar operating at X-band frequency to identify the elevation of the wetting and drying transitions at each pixel in the radar images, thereby building up a morphological map of the target intertidal area.

TL;DR: In this article, the hydrodynamics and morphology of Bay Head during Hurricane Sandy were simulated with XBeach, a numerical model designed to study these processes during storm events, showing that the seawall protected Bay Head by effectively dissipating wave energy during the peak of the storm and from rapidly increasing bay water levels that flood the backbarrier region of the island.

TL;DR: In this article, the authors present a comprehensive and critical review of work on the numerical modelling of swash zone processes between 2005 and 2015, comparing different numerical models against laboratory experiments of a dam-break-driven swash event.

TL;DR: In this article, the results of a study carried out in the Large Wave Flume (Groser Wellenkanal, GWK), where waves of periods between 30 s and more than 100 s at 1 m water depth were successfully generated with a piston type wave maker.

TL;DR: In this paper, the authors report on plant collection and growing strategies, plant properties, physical set-up, instrumentation, and experimental strategy and dismantling, providing guidelines aimed at being helpful for future experimental efforts at the interface of engineering and ecology.

TL;DR: In this article, the authors reviewed and synthesized from 2004 onward the research advances of small-scale hydrodynamics and sediment transport processes considering field, laboratory and numerical modeling efforts.

TL;DR: In this article, a second-order corrected NewWave profile was proposed to capture the average features of large waves recorded during two large storms in January 2014, and validated against field data for waves on deep and intermediate water depths.

TL;DR: In this paper, the authors examined the impact of floodwater caused by the storm surge brought about by Typhoon Haiyan in 2013, focusing on downtown Tacloban in Leyte Island, the Philippines.