Results 41 to 50 of about 1,660,853 (215)
Physics Letters B, 2017 Sound waves on a fluid stream, in a de Laval nozzle, are shown to correspond to quasinormal modes emitted by black holes that are physical solutions in a quadratic curvature gravity with cosmological constant.
R. da Rocha, R.F. Sobreiro, A.A. Tomaz
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Time-Dependent Propagation of Tsunami-Generated Acoustic–Gravity Waves in the Atmosphere
Journal of the Atmospheric Sciences, 2020 Tsunami-generated linear acoustic–gravity waves in the atmosphere with altitude-dependent vertical stratification and horizontal background winds are studied with the long-term goal of real-time tsunami warning.
Yue Wu +4 more
semanticscholar +1 more source
Nonlinear interaction of gravity and acoustic waves
Tellus: Series A, Dynamic Meteorology and Oceanography, 2020 Here we have investigated the possibility of an inertio-acoustic wave-mode to be unstable with regards to gravity mode perturbations through non-linear triad interactions in the context of a shallow non-hydrostatic model.
André Seiji Wakate Teruya +1 more
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Time-Reversal Analogy by Nonlinear Acoustic–Gravity Wave Triad Resonance
Fluids, 2019 Time reversal of free-surface water (gravity) waves due to a sudden change in the effective gravity has been extensively studied in recent years. Here, we show that an analogy to time-reversal can be obtained using nonlinear acoustic-gravity wave theory.
Usama Kadri
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Geophysical Journal InternationalThis study introduces a new method for calculating acoustic-gravity waves in a spherically layered atmosphere. The method introduces a model assumption and divides the atmosphere into finely stratified layers to solve the PDE with respect to the radial
Jun-Zhe Zhang +2 more
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Atmospheric Chemistry and Physics. A multi-group of strong atmospheric waves (wave packet nos. 1–5) over China associated with the 2022 Hunga Tonga–Hunga Ha′apai (HTHH) volcano eruptions were observed in the mesopause region using a ground-based airglow imager network.
Qin-Zeng Li +7 more
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Low frequency twisted waves in a self-gravitating nonextensive complex plasma
New Journal of Physics, 2023 The effects of dust–dust self-gravitational force and nonextensive characteristics of plasma species on the low frequency twisted waves owing to the helical wave structure in complex (dusty) plasmas are analyzed.
S Bukhari +3 more
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Detection of acoustic‐gravity waves in lower ionosphere by VLF radio waves [PDF]
, 2017 We present a new method to study harmonic waves in the low ionosphere (60–90 km) by detecting their effects on reflection of very low frequency (VLF) radio waves.
A. Nina, V. Čadež
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Entropy, 2023 The aim of this study is to explore the insights of the information-theoretic definition of similarity for a multitude of flow systems with wave propagation.
Robert K. Niven
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Journal of Fluid Mechanics, 2023 In this paper, we construct an accurate linear model describing the propagation of both acoustic and gravity waves in water. This original model is obtained by the linearization of the compressible Euler equations, written in Lagrangian coordinates.
Juliette Dubois +4 more
semanticscholar +1 more source