L
Louis-Alexandre Couston
Researcher at British Antarctic Survey
Publications - 37
Citations - 379
Louis-Alexandre Couston is an academic researcher from British Antarctic Survey. The author has contributed to research in topics: Internal wave & Convection. The author has an hindex of 8, co-authored 36 publications receiving 286 citations. Previous affiliations of Louis-Alexandre Couston include Claude Bernard University Lyon 1 & University of Cambridge.
Papers
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The energy flux spectrum of internal waves generated by turbulent convection
TL;DR: In this article, direct numerical simulations of internal waves excited by turbulent convection in a self-consistent, Boussinesq and Cartesian model of mixed convective and stably stratified fluids are presented.
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Low-frequency Variability in Massive Stars: Core Generation or Surface Phenomenon?
Daniel Lecoanet,Matteo Cantiello,Eliot Quataert,Louis-Alexandre Couston,Louis-Alexandre Couston,Louis-Alexandre Couston,Keaton J. Burns,Benjamin J. S. Pope,Adam S. Jermyn,Benjamin Favier,Michael Le Bars +10 more
TL;DR: In this paper, it was shown that low frequency traveling waves do not break unless their luminosity exceeds the radiative luminosity of the star, and the observed luminosity fluctuations at high frequencies are so small that standing modes would be stable to nonlinear instability.
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Dynamics of mixed convective-stably-stratified fluids
TL;DR: In this article, the generation and effect of internal waves on convective motions were studied via direct numerical simulation, and it was shown that the overall dynamics vary with the stratification strength of the stable fluid layer.
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Order Out of Chaos: Slowly Reversing Mean Flows Emerge from Turbulently Generated Internal Waves.
TL;DR: It is demonstrated via direct numerical simulations that a periodic, oscillating mean flow spontaneously develops from turbulently generated internal waves, demonstrating for the first time that the three-scale dynamics due to convection, waves, and mean flow is generic and hence can occur in many astrophysical and geophysical fluids.
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Landslide tsunamis in lakes
TL;DR: In this paper, a nonlinear model equation in the Lagrangian frame of reference is used to predict landslide tsunamis in lakes and reservoirs, and the authors show that Airy's approximation of an irrotational theory using Lagrangians coordinates can legitimately predict runup of large amplitude.