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A new model for Korteweg and de-Vries equation (KdV) is derived. The system under study is an open channel consisting of two concentric cylinders, rotating about their vertical axis, which is tilted by slope {\tau} from the inertial…

Mathematical Physics · Physics 2021-11-16 Hajar Alshoufi

This paper presents an experimental study of different instability scenarios in a parallelogram-shaped internal wave attractor in a trapezoidal domain filled with a uniformly stratified fluid. Energy is injected into the system via the…

Fluid Dynamics · Physics 2021-02-10 Christophe Brouzet , E. V. Ermanyuk , Sylvain Joubaud , Grimaud Pillet , Thierry Dauxois

We propose a new method for detecting high-frequency gravitational waves (GWs) using high-energy pulsed lasers. Through the inverse Gertsenshtein effect, the interaction between a GW and the laser beam results in the creation of an…

General Relativity and Quantum Cosmology · Physics 2023-06-30 Georgios Vacalis , Giacomo Marocco , James Bamber , Robert Bingham , Gianluca Gregori

We analyze a set of bidirectional wave experiments in a linear wave flume of which some are conducive to integrable turbulence. In all experiments the wavemaker forcing is sinusoidal and the wave motion is recorded by seven high-resolution…

Fluid Dynamics · Physics 2022-10-11 Ivan Redor , Hervé Michallet , Nicolas Mordant , Eric Barthélemy

This paper aims to investigate electric dynamics and improve electric power generation of an isolated wave energy converter that uses a linear permanent magnet generator as the power take-off system, excited by regular or irregular waves.…

Applied Physics · Physics 2020-09-29 LiGuo Wang , MaoFeng Lin , Elisabetta Tedeschi , Jens Engström , Jan Isberg

Internal gravity waves (IGWs) have been shown to contribute to the transport of chemical elements in stars with a convective core and radiative envelope. Recent 2D hydrodynamical simulations of convection in intermediate-mass stars have…

Solar and Stellar Astrophysics · Physics 2025-03-26 J. S. G. Mombarg , A. Varghese , R. P. Ratnasingam

Objective: To validate a novel inter-electrode pulse wave velocity (PWV) method that measures pulse propagation between ECG electrodes without left ventricular ejection time (LVET) estimation. Methods: We analyzed 43 three-channel ECG…

The time evolution emanating from "internal dam-break" initial conditions is studied for a class of models of stratified Euler fluids in configurations close to two-homogeneous layers separated by a thin diffused interface. Direct numerical…

Fluid Dynamics · Physics 2017-03-28 Shengqian Chen

Experimental assessment of safe and precise flight control algorithms for unmanned aerial vehicles (UAVs) under gusty wind conditions requires the capability to generate a large range of velocity profiles. In this study, we employ a small…

Fluid Dynamics · Physics 2023-09-04 Songqi Li , Yutong Liu , Zhutao Jiang , Gang Hu , Bernd R. Noack , Franz Raps

We construct a gravity dual for charge density waves (CDW) in which the translational symmetry along one spatial direction is spontaneously broken. Our linear perturbation calculation on the gravity side produces the frequency dependence of…

High Energy Physics - Theory · Physics 2014-08-27 Yi Ling , Chao Niu , Jianpin Wu , Zhuoyu Xian , Hongbao Zhang

The propagation of a dissipative solitary wave across an interface is studied in a binary complex plasma. The experiments were performed under microgravity conditions in the PK-3 Plus Laboratory on board the International Space Station…

Spontaneous creation of solitons in quadratic media by the downconversion, i.e., parametric instability against the generation of fundamental-frequency excitations, from the truncated Airy-wave (AW) mode in the second-harmonic component is…

Pattern Formation and Solitons · Physics 2023-07-19 Thawatchai Mayteevarunyoo , Boris A. Malomed

Three-dimensional equatorial trapped waves excited by stellar isolation and the resulting equatorial superrotating jet in a vertical stratified atmosphere of a tidally-locked hot Jupiter are investigated. Taking the hot Jupiter HD 189733b…

Earth and Planetary Astrophysics · Physics 2015-06-19 Shang-Min Tsai , Ian Dobbs-Dixon , Pin-Gao Gu

In Kohn-Sham electronic structure computations, wave functions have singularities at nuclear positions. Because of these singularities, plane-wave expansions give a poor approximation of the eigenfunctions. In conjunction with the use of…

Numerical Analysis · Mathematics 2023-01-02 Xavier Blanc , Eric Cancès , Mi-Song Dupuy

To date, axisymmetric internal wave fields, which have relevance to atmospheric internal wave fields generated by storm cells and oceanic near-inertial wave fields generated by surface storms, have been experimentally realized using an…

Fluid Dynamics · Physics 2020-12-25 Samuel Boury , Thomas Peacock , Philippe Odier

We report the observation of highly energetic self-interfering matter-wave (SIMW) patterns generated by a moving obstacle in a two-dimensional Bose-Einstein condensate (BEC) inside a power trap cut off by hard-wall box potential boundaries.…

Quantum Gases · Physics 2012-03-06 Roger R. Sakhel , Asaad R. Sakhel , Humam B. Ghassib

The aim of this work is to study numerically the interaction of large amplitude solitary waves with an external periodic forcing using the forced extended Korteweg-de Vries equation (feKdV). Regarding these interactions, we find that a…

Fluid Dynamics · Physics 2022-09-08 Marcelo V. Flamarion , Efim Pelinovsky

Microcavity plasma arrays of inverse pyramidal cavities have been fabricated in p-Si wafers. Each cavity acts as a microscopic dielectric barrier discharge. Operated at atmospheric pressure in argon and excited with high voltage at about 10…

In a uniformly rotating fluid, inertial waves propagate along rays that are inclined to the rotation axis by an angle that depends on the wave frequency. In closed domains, multiple reflections from the boundaries may cause inertial waves…

Solar and Stellar Astrophysics · Physics 2015-06-18 Laurène Jouve , Gordon Ogilvie

We propose an adaptive planewave method for eigenvalue problems in electronic structure calculations. The method combines a priori convergence rates and accurate a posteriori error estimates into an effective way of updating the energy…

Computational Physics · Physics 2021-07-30 Beilei Liu , Huajie Chen , Geneviève Dusson , Jun Fang , Xingyu Gao