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Field measurements of second-mode internal solitary waves (mode-2 ISWs) during the winter on the upper continental slope of the northern South China Sea were reported in Yang et al. (2009), but their generation mechanism remains elusive. We…

Atmospheric and Oceanic Physics · Physics 2019-02-20 JianJun Liang , Xiao-Ming Li

Intermediate-mass main sequence stars have large radiative envelopes overlying convective cores. This configuration allows internal gravity waves (IGWs) generated at the convective-radiative interface to propagate towards the stellar…

Solar and Stellar Astrophysics · Physics 2020-08-12 R. P. Ratnasingam , P. V. F. Edelmann , T. M. Rogers

In this paper, we present the first laboratory experiments that show the generation of internal solitary waves by the impingement of a quasi-two-dimensional internal wave beam on a pycnocline. These experiments were inspired by observations…

Internal gravity waves (IGW) propagate in the radiation zones of all stars. During propagation, their amplitudes are affected by two main features: radiative diffusion and density stratification. We have studied the implications of these…

Solar and Stellar Astrophysics · Physics 2018-12-05 R. P. Ratnasingam , P. V. F. Edelmann , T. M. Rogers

Fronts and near-inertial waves are energetic motions in the upper ocean that can interact and provide a route for kinetic energy (KE) dissipation of balanced oceanic flows. A quasilinear model is developed to study the KE exchanges between…

Atmospheric and Oceanic Physics · Physics 2022-06-20 Subhajit Kar , Roy Barkan

The internal-wave (IW) continuum of a regional ocean model is studied in terms of the vertical spectral kinetic-energy (KE) fluxes and transfers at high vertical wavenumbers. Previous work has shown that this model permits a partial…

Atmospheric and Oceanic Physics · Physics 2023-02-06 Joseph Skitka , Brian K. Arbic , Ritabrata Thakur , Dimitris Menemenlis , William R. Peltier , Yulin Pan , Kayhan Momeni , Yuchen Ma

We experimentally study nonlinear generation of the second harmonic by backward volume spin waves propagating in microscopic magnonic waveguides fabricated from a low-loss magnetic insulator with a thickness of several tens of nanometers.…

Mesoscale and Nanoscale Physics · Physics 2025-02-27 K. O. Nikolaev , S. R. Lake , B. Das Mohapatra , G. Schmidt , S. O. Demokritov , V. E. Demidov

Nonlinear two-dimensional internal gravity waves (IGWs) in the atmospheres of the Earth and the Sun are studied. The resulting two-dimensional nonlinear equation has the form of a generalized nonlinear Schr\"{o}dinger equation with nonlocal…

Pattern Formation and Solitons · Physics 2024-08-23 Volodymyr M. Lashkin , Oleg K. Cheremnykh

This paper evaluates the experimental generation of internal solitary waves (ISWs) in a miscible two-layer system with a free surface using a jet-array wavemaker (JAW). Unlike traditional gate-release experiments, the JAW system generates…

Fluid Dynamics · Physics 2024-11-08 Jen-Ping Chu , Mitul Luhar , Partrick Lynett

The evolution of wind-generated near-inertial waves (NIWs) is known to be influenced by the mesoscale eddy field, yet it remains a challenge to disentangle the effects of this interaction in observations. Here, the model of Young and Ben…

Atmospheric and Oceanic Physics · Physics 2024-01-04 Scott Conn , Joseph Fitzgerald , Jörn Callies

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

We propose, for the first time, a two-dimensional model for the nonlinear coupling of internal gravity and thermal waves in the presence of temperature-dependent density inhomogeneity due to thermal expansion and thermal feedback in…

Atmospheric and Oceanic Physics · Physics 2025-11-04 S. Das Adhikary , A. P. Misra

Triadic resonance is one mechanism via which internal waves dissipate their energy, often at locations away from their generation sites. In this paper, we perform a combined theoretical and numerical study of triadic resonance in internal…

Fluid Dynamics · Physics 2019-10-18 Dheeraj Varma , Vamsi K. Chalamalla , Manikandan Mathur

Laboratory experimental results are presented for nonlinear Internal Solitary Waves (ISW) propagation in deep water configuration with miscible fluids. The results are validated against direct numerical simulations and traveling wave exact…

Two-mode squeezed states as paradigmatic entangled resources have broad applications in quantum information processing. Here, we study the generation of stable optical-microwave squeezing in structured environments within a hybrid…

Quantum Physics · Physics 2026-04-28 Chen Wang , Man Shen , Shi-fan Qi , Yan-kui Bai

Interfacial waves arising in a two-phase swirling flow driven by a low-frequency rotating magnetic field (RMF) are studied. At low RMF frequencies, of the order of 1-10 Hz, the oscillatory part of the induced Lorenz force becomes comparable…

Fluid Dynamics · Physics 2024-01-09 Gerrit Maik Horstmann , Yakov Nezihovski , Thomas Gundrum , Alexander Gelfgat

We present laboratory experiments on turbulence in a linearly stratified fluid driven by an ensemble of internal gravity waves which approaches statistical homogeneity and axi-symmetry. In a way similar to several recent experimental works,…

Fluid Dynamics · Physics 2023-05-31 Nicolas Lanchon , Daniel Odens Mora , Eduardo Monsalve , Pierre-Philippe Cortet

Main-sequence intermediate-mass stars present a radiative envelope that supports internal gravity waves (IGWs). Excited at the boundary with the convective core, IGWs propagate towards the stellar surface and are suspected to impact…

Solar and Stellar Astrophysics · Physics 2023-04-26 A. Le Saux , I. Baraffe , T. Guillet , D. G. Vlaykov , A. Morison , J. Pratt , T. Constantino , T. Goffrey

Sub-stellar objects exhibit photometric variability, which is believed to be caused by a number of processes, such as magnetically-driven spots or inhomogeneous cloud coverage. Recent models have shown that turbulent flows and waves,…

Solar and Stellar Astrophysics · Physics 2021-06-04 Amy Parent , Ruth E. Falconer , Elspeth K. H. Lee , Karen A. Meyer , Craig R. Stark

Internal waves, or waves that propagate within a stratified fluid, may break and cause mixing. While each individual mixing event may be small, collectively, internal wave breaking drive processes in the ocean that are critical to…

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