Extended Fourth-Order Depth-Integrated Model for Water Waves and Currents Generated by Submarine Landslides

2010 ◽  
Vol 136 (4) ◽  
pp. 506-516 ◽  
Author(s):  
Hongqiang Zhou ◽  
Michelle H. Teng
Keyword(s):  
Fourth Order ◽  
Water Waves ◽  
Integrated Model ◽  
Submarine Landslides ◽  
Waves And Currents

Using OpenFOAM for landslide tsunamis modeling and comparison with a 2D depth-integrated model

2021 ◽  
Author(s):  
Alexandre Paris ◽  
Philippe Heinrich ◽  
Stéphane Abadie
Keyword(s):  
Water Waves ◽  
Slope Angle ◽  
Ocean Waves ◽  
Integrated Model ◽  
Submarine Landslides ◽  
Two Phase ◽  
Tsunami Waves ◽  
Low Viscosity ◽  
Sensitivity Studies ◽  
Landslide Tsunamis

<p>In the literature, OpenFOAM has been used to simulate landslide tsunamis, modeling the landslide as a solid or a two-phase flow. Here we present an approach using three phases (air, water and sediment) modeled as Newtonian fluids. This 3D model is validated against two benchmarks with deformable landslides: one subaerial (Viroulet et al. 2016) and one submarine (Grilli et al. 2017). These benchmarks are also run by a 2D depth-integrated model, AVALANCHE, recently used to reproduce the 2017 Karrat Fjord, Greenland and the 2018 Anak Krakatau, Indonesia events. Both models are able to reproduce either the water waves or the landslide behavior but not both at the same time.</p><p>Considering OpenFOAM as a reference code, sensitivity studies on the slope angle, the landslide viscosity and the landslide initial submergence showed that AVALANCHE produces similar results for slope angles between 10 and 45°, for subaerial or close to the surface landslide and/or for low viscosity values. In the other cases (submarine landslides and higher viscosity values) results indicated that OpenFOAM should be preferred to a 2D depth-integrated model.</p><p> </p><p>References:</p><p>Grilli, S., Shelby, M. & Kimmoun, O. (2017), ‘Modeling coastal tsunami hazard from submarine mass failures: effect of slide rheology, experimental validation, and case studies off the US East Coast’, <em>Natural Hazards</em> <strong>86</strong>, 353-391.</p><p>Viroulet, S., Sauret, A., Kimmoun, O. & Kharif, C. (2016), Tsunami waves generated by cliff collapse: comparison between experiments and triphasic simulations, <em>in </em>E. Pelinovsky & C. Kharif, eds, ‘Extreme Ocean Waves’, Springer International Publishing, Cham, pp. 173-190.</p>

Dispersal and floating ability of dimorphic fruit segments of Cakile edentula var. lacustris

1981 ◽  
Vol 59 (12) ◽  
pp. 2595-2602 ◽  
Author(s):  
Anita M. Payne ◽  
M. A. Maun
Keyword(s):  
Water Waves ◽  
Sandy Beaches ◽  
Georgian Bay ◽  
New Locations ◽  
Waves And Currents ◽  
Cakile Edentula ◽  
Strong Winds

Cakile edentula (Bigel) Hook var. lacustris occurs abundantly along sandy beaches of Lakes Huron, Erie and Ontario. Until now the species had not been reported to occur along Georgian Bay but we located one population at Deanlea Beach. The deciduous upper fruit segments disperse long distances by water waves and currents and short distances by rolling caused by strong winds. The lower fruit segments usually remain attached to the parents which may be uprooted by high waves and then transported as tumble weeds to new locations. The floatation experiment showed that the agitation of jars containing the fruits improved their floating ability. Agitated upper fruit segments showed a significantly lower sinking index than agitated lower fruit segments and upper and lower fruit segments in the still treatment. The overwintering of fruits improved their floating ability.

scholarly journals Research on Separated Flow around A Submerged Horizontal Cylinder in Water Waves and Currents

1990 ◽  
Vol 1990 (168) ◽  
pp. 193-202
Author(s):  
Hisaaki Maeda ◽  
Koichi Masuda ◽  
Fumio Maruyama ◽  
Yuka Kitakouji
Keyword(s):  
Water Waves ◽  
Separated Flow ◽  
Horizontal Cylinder ◽  
Waves And Currents

Energy of Water Waves Induced by Submarine Landslides

2000 ◽  
Vol 157 (3) ◽  
pp. 281-318 ◽  
Author(s):  
S. Tinti ◽  
E. Bortolucci
Keyword(s):  
Water Waves ◽  
Submarine Landslides

scholarly journals Effect of Capillarity on Fourth Order Nonlinear Evolution Equation for Two Stokes Wave Trains in Deep Water in the Presence of Air Flowing Over Water

2015 ◽  
Vol 20 (2) ◽  
pp. 267-282
Author(s):  
A.K. Dhar ◽  
J. Mondal
Keyword(s):  
Fourth Order ◽  
Deep Water ◽  
Water Waves ◽  
Nonlinear Evolution ◽  
Wave Train ◽  
Nonlinear Evolution Equations ◽  
Wave Number ◽  
Stokes Wave ◽  
Instability Wave ◽  
Starting Point

Abstract Fourth order nonlinear evolution equations, which are a good starting point for the study of nonlinear water waves, are derived for deep water surface capillary gravity waves in the presence of second waves in which air is blowing over water. Here it is assumed that the space variation of the amplitude takes place only in a direction along which the group velocity projection of the two waves overlap. A stability analysis is made for a uniform wave train in the presence of a second wave train. Graphs are plotted for the maximum growth rate of instability wave number at marginal stability and wave number separation of fastest growing sideband component against wave steepness. Significant improvements are noticed from the results obtained from the two coupled third order nonlinear Schrödinger equations.

Modelling of submarine landslides and generated water waves

1996 ◽  
Vol 21 (1-2) ◽  
pp. 7-12 ◽  
Author(s):  
S.Assier Rzadkiewicz ◽  
C. Mariotti ◽  
P. Heinrich
Keyword(s):  
Water Waves ◽  
Submarine Landslides

Nonlinear interactions between deep-water waves and currents

2011 ◽  
Vol 691 ◽  
pp. 1-25 ◽  
Author(s):  
R. M. Moreira ◽  
D. H. Peregrine
Keyword(s):  
Deep Water ◽  
Water Waves ◽  
Boundary Integral ◽  
Boundary Integral Method ◽  
Surface Velocity ◽  
Fully Nonlinear ◽  
Individual Wave ◽  
Waves And Currents ◽  
Wave Blocking ◽  
The Individual

AbstractThe effects of nonlinearity on a train of linear water waves in deep water interacting with underlying currents are investigated numerically via a boundary-integral method. The current is assumed to be two-dimensional and stationary, being induced by a distribution of singularities located beneath the free surface, which impose sharp and gentle surface velocity gradients. For ‘slowly’ varying currents, the fully nonlinear results confirm that opposing currents induce wave steepening and breaking within the region where a high convergence of rays occurs. For ‘rapidly’ varying currents, wave blocking and breaking are more prominent. In this case reflection was observed when sufficiently strong adverse currents are imposed, confirming that at least part of the wave energy that builds up within the caustic can be released in the form of partial reflection and wave breaking. For bichromatic waves, the fully nonlinear results show that partial wave blocking occurs at the individual wave components in the wave groups and that waves become almost monochromatic upstream of the blocking region.

THE MOVEMENT OF OIL SPILLS

1971 ◽  
Vol 1971 (1) ◽  
pp. 489-494 ◽  
Author(s):  
Henry G. Schwartzberg
Keyword(s):  
Wind Tunnel ◽  
Water Waves ◽  
Oil Spills ◽  
Wave Interaction ◽  
Open Water ◽  
Wind Drift ◽  
Calm Water ◽  
Waves And Currents ◽  
Infinite Height ◽  
Drift Analysis

ABSTRACT The effects of winds, waves, and currents, and the physical properties of oil and water on the drift rates of oil spills were studied in tests carried out in a combined water basin wind tunnel On calm water, oil drifted at a fairly constant percentage of the wind speed regardless of the nature and spreading tendencies of the oil, the spill size, and water temperature, depth, and salinity. Percent drift varied with wind tunnel height. Extrapolation to infinite height indicated that on calm open water wind drift should be 3.7%. Shallow water waves, which produced no significant drift themselves, reduced wind drift. Analysis indicated that deep water waves produced by the wind should produce significant drift, complicating wind drift prediction, but the magnitude of the wind wave interaction effects is not yet known. Test wind drifts and current drifts were found not to be directly additive.

SPH modelling of water waves generated by submarine landslides

2010 ◽  
Vol 48 (sup1) ◽  
pp. 80-84 ◽  
Author(s):  
Tatiana Capone ◽  
Andrea Panizzo ◽  
Joe J. Monaghan
Keyword(s):  
Water Waves ◽  
Submarine Landslides
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