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Showing 1 to 20 of 31 for “"solitary wave"”.
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Dynamics Of Internal Solitary Wave And Bottom Boundary Interaction
The breaking of internal solitary waves (ISWs) of depression shoaling upon a uniformly sloping boundary in a smoothed two-layer density field was investigated using high-resolution two-dimensional simulations. The simulations were performed for a wide range of boundary slopes S∈[0.01,0.3] and wave …
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ISPH Modelling of Solitary Wave Interaction with Permeable Beaches
… such as storm surges and tsunamis. Dykes, wave-absorbing blocks, and forests, are typical solutions to mitigate coastal disasters. In coastal engineering, these protections and beaches are considered as porous media. Accurate prediction of wave motion around porous structures is necessary …
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The solitary wave and the forces it imposes on a submerged horizontal circular cylinder: an analytical and experimental study
… from the channel bed, due to the passage of a solitary wave. The horizontal cylinder was positioned with its major axis parallel to the direction of the wave crest. The vertical and in-line forces were measured using a force balance. The horizontal fluid velocities were measured using a Hot …
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Quantization Of Spin Direction For Solitary Waves in a Uniform Magnetic Field
It is known that there are nonlinear wave equations with localized solitary wave solutions. Some of these solitary waves are stable (with respect to a small perturbation of initial data)and have nonzero spin (nonzero intrinsic angular momentum in the centre of momentum frame). In this paper we …
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Investigating Wave Forces on Coastal Bridge Decks
Tsunamis and hurricane induced waves are responsible for many coastal bridge failures, especially in the last decade. In the current study, three countermeasures (reducing the entrapped air, elevating the structures and rigidifying the structures) are considered, two wave types (solitary wave …
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Asymptotic stability and completeness in 2D nonlinear Schrodinger equation
… initial data evolves into a superposition of a solitary wave (ground state) and a radiative part that decays in time.
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Experimental study of the development of plastic solitary waves in one-dimensional granular media
… and are of interest because of their unique wave propagation characteristics, as seen in earlier efforts. Loading magnitudes spanning from 9 kN to 40 kN – considerably higher than most previous works on these systems which have been conducted in the elastic regime – cause the granular chains …
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Dynamics and stability of gravity-capillary solitary waves
… it has been recognized that a new class of solitary waves can propagate in nonlinear dispersive wave systems if the phase speed of linear waves attains a local extremum at some finite wavenumber. Near such a point, solitary waves in the form of small-amplitude wavepackets can be obtained for …
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Experimental study of elasto-plastic wave propagation in one-dimensional and two-dimensional disk arrays
… exist. This allows for elasto-plastic wave propagation to be studied in ordered 1D and 2D elasto-plastic arrays. Additionally, the loading pulse durations from the two experimental setups are sufficiently different that the effect of the loading time can be studied. The drop tower load …
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Wave propagation in one dimensional confined granular media
… primary result of this contact, the formation of solitary waves in dynamically loaded one dimensional granular arrays, has been studied at great length. This thesis is the first to consider the effects of different types of lateral confinement on the dynamic response of such one dimensional …
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A Spatial Dynamic Approach to Three-Dimensional Gravity-Capillary Water Waves
Three-dimensional gravity-capillary steady waves on water of finite-depth, which are uniformly translating in a horizontal propagation direction and periodic in a transverse direction, are considered. The exact Euler equations are formulated as a spatial dynamic system in which the variable used …
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Modulation of non-linear wave in a fluid-filled thick elastic tube
This research presents an analytical study on the wave modulation flow in an artery. The artery is simulated as an incompressible, isotropic, and thick walled elastic tube. By considering blood as an incompressible inviscid fluid or incompressible viscous fluid, two mathematical models of …
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Predicting eddy detachment from thin jets
… The MKdV equation admits two types of solitary wave solutions, loop solitons and breathers. The breathers are permanent meanders which propagate on the path , and some are able to form rings. Using the inverse scattering transform , we can predict breather and ring formation for simple …
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Strongly interacting Fermi gases : non-equilibrium dynamics and dimensional crossover
… light. This defect moves through the gas as a solitary wave, or soliton, without dispersing. We measure the oscillation period of the soliton and find it to exceed the predictions of mean-field theory by an order of magnitude.
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Nonlinear wave modulation in an inviscid and viscous fluids-filled thin viscoelastic tube
… is aimed to study the modulation of nonlinear wave in an artery filled with blood. In recent years, many researchers have carried out studies on arterial wave modulation with different perspectives related to blood flow. Most of the studies focused on wave modulation in the artery by …
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A numerical study on the propagation and interaction of strongly nonlinear solitary waves
We study numerically a strongly nonlinear long wave model for surface gravity waves propagating in both one and two horizontal dimensions. This model often referred to as the Su-Gardner or Green-Naghdi equations can be derived from the Euler equations under the assumption that the ratio between the …
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Geochemical Implications of Stirring and Mixing in the Earth's Mantle
… work has shown that the conduit supports solitary waves of elevation, with a region of trapped melt travelling with the wave. The new analysis comes to a different conclusion, showing that the solitary wave is instead one of depression, without a region of trapped melt.
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Electrical properties of some low-dimensional compounds
… suggests that the conductivity results from solitary-wave excitations in a charge-densitywave state. Further~evidence for this interpretation is provided by the observation of non-ohmic behavior below 160 K at high field strengths. A calculation is given to show that the non-ohmic behavior is …
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On Steady Water Waves and Their Properties
… related to various aspects of steady water waves. Paper I: Deep-water waves with vorticity: symmetry and rotational behaviour. We show that for steady, periodic, and rotational gravity deep-water waves, a monotone surface profile between troughs and crests implies symmetry. It is observed …
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A high-order hybrid flow solver for the simulation of nonlinear internal waves in long complex domains
The simulation of nonlinear internal waves (NLIWs) is a challenging task for several reasons. The inherent long width of NLIWs and their long propagation distances necessitate high-aspect-ratio, anisotropic and usually deformed (due to complex bathymetry) computational domains. Furthermore, the …
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