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Controlling surface waves with temporal discontinuities of metasurfaces [PDF]

open access: yesNanophotonics, 2023
Static reactive metasurfaces allow excitation and propagation of surface waves. In this paper, we theoretically elucidate how surface-wave propagation along a reactive boundary is affected by temporal discontinuities of effective parameters ...
Wang Xuchen   +2 more
doaj   +2 more sources

Dyakonov-Voigt surface waves. [PDF]

open access: yesProc Math Phys Eng Sci, 2019
Electromagnetic surface waves guided by the planar interface of an isotropic dielectric medium and a uniaxial dielectric medium, both non-dissipative, were considered, the optic axis of the uniaxial medium lying in the interface plane. Whereas this interface is known to support the propagation of Dyakonov surface waves when certain constraints are ...
Mackay TG, Zhou C, Lakhtakia A.
europepmc   +6 more sources

Surface Waves Enhance Particle Dispersion

open access: yesFluids, 2019
We study the horizontal dispersion of passive tracer particles on the free surface of gravity waves in deep water. For random linear waves with the JONSWAP spectrum, the Lagrangian particle trajectories are computed using an exact nonlinear model known ...
Mohammad Farazmand, Themistoklis Sapsis
doaj   +3 more sources

Interacting Seismic Waveguides: Multimode Surface Waves and Leaking Modes

open access: yesSeismica, 2023
Recent developments in seismic recording provide dense sampling of the seismic wavefield that allows the extraction of higher surface wave modes as well as the fundamental, and in some circumstances also P-dominated modes.
Brian Kennett
doaj   +1 more source

Waves and Ripples in Liquid Films [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2004
In this paper we present a mathematical model for two- dimensional incompressible flow in a symmetric thin liquid films with the viscosity forces, which can be very small, compared with surface tension and inertia forces.
Joseph G. Abdulahad   +1 more
doaj   +1 more source

Non-Linear Damping of Surface Alfvén Waves Due to Uniturbulence

open access: yesFrontiers in Astronomy and Space Sciences, 2022
This investigation is concerned with uniturbulence associated with surface Alfvén waves that exist in a Cartesian equilibrium model with a constant magnetic field and a piece-wise constant density.
Rajab Ismayilli   +4 more
doaj   +1 more source

Observations and Parametrization of the Turbulent Energy Dissipation Beneath Non-Breaking Waves

open access: yesFluids, 2022
Here, for non-breaking short surface waves, we have experimentally determined the value of the turbulent eddy viscosity νT or its ratio νT*≡νT/ν, where ν is the water kinematic viscosity.
Darek J. Bogucki   +2 more
doaj   +1 more source

Estimation of the Soil Layers Thickness Using Multi-Chanel Analysis of Surface Waves and Surface Wave Dispersion Curve [PDF]

open access: yesJournal of Structural and Construction Engineering, 2021
One of the most interesting topics in the geotechnical and geophysical engineering is the use of surface waves to characterize the earth subsurface layers.
Mehdi Hashemi Jokar   +2 more
doaj   +1 more source

The use of surface acoustic waves to evaluate of the near-surface layers of metal processed shot peening

open access: yesDiagnostyka, 2021
The surface layers of low-carbon steel metal subjected to shot peening were studied. The velocity of Rayleigh surface waves of various frequencies in the range of 3-9 MHz by the phase-pulse method using contact piezoelectric transducers measured.
Valentyn Skalsky   +6 more
doaj   +1 more source

Broadband inverted T-shaped seismic metamaterial

open access: yesMaterials & Design, 2021
Seismic metamaterials (SMs) are expected to assist or replace traditional isolation systems owing to their strong attenuation of seismic waves. In this work, a one-dimensional inverted T-shaped SM (1D ITSM) composed of arrays of inverted T-shaped ...
Yi Zeng   +8 more
doaj   +1 more source

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