Numerical simulation of a two-dimensional internal wave attractor

N Grisouard, C Staquet, I Pairaud - Journal of Fluid Mechanics, 2008 - cambridge.org
Internal (gravity) wave attractors may form in closed containers with boundaries non-parallel
and non-normal to the gravity vector. Such attractors have been studied from a theoretical …

Comparison of laboratory and numerically observed scalar fields of an internal wave attractor

J Hazewinkel, N Grisouard, SB Dalziel - European Journal of Mechanics-B …, 2011 - Elsevier
Observations of internal gravity wave beams are frequently accompanied by theory that is
purely two-dimensional, or two-dimensional numerical models. Although qualitative …

Observations on the wavenumber spectrum and evolution of an internal wave attractor

J Hazewinkel, P Van Breevoort, SB Dalziel… - Journal of Fluid …, 2008 - cambridge.org
Reflecting internal gravity waves in a stratified fluid preserve their frequency and thus their
angle with the gravitational direction. At boundaries that are neither horizontal nor vertical …

Direct numerical simulations of an inertial wave attractor in linear and nonlinear regimes

L Jouve, GI Ogilvie - Journal of Fluid Mechanics, 2014 - cambridge.org
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 …

Internal wave attractors: different scenarios of instability

C Brouzet, E Ermanyuk, S Joubaud, G Pillet… - Journal of Fluid …, 2017 - cambridge.org
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 …

Internal wave attractors in three-dimensional geometries: trapping by oblique reflection

G Pillet, EV Ermanyuk, LRM Maas… - Journal of Fluid …, 2018 - cambridge.org
We study experimentally the propagation of internal waves in two different three-
dimensional (3D) geometries, with a special emphasis on the refractive focusing due to the …

On (n, 1) wave attractors: coordinates and saturation time

I Sibgatullin, A Petrov, X Xu, L Maas - Symmetry, 2022 - mdpi.com
The simplest geometry of the domain, for which internal wave attractors were for the first time
investigated both experimentally and numerically, has the shape of a trapezium with one …

Linear and nonlinear regimes of an inertial wave attractor

M Brunet, T Dauxois, PP Cortet - Physical Review Fluids, 2019 - APS
We present an experimental analysis of the linear and nonlinear regimes of an attractor of
inertial waves in a trapezoidal cavity under rotation. Varying the rotation rate and the forcing …

Observations on the robustness of internal wave attractors to perturbations

J Hazewinkel, C Tsimitri, LRM Maas, SB Dalziel - Physics of fluids, 2010 - pubs.aip.org
Previously, internal wave attractors have been studied in the laboratory in idealized
situations. Here, we present a series of experiments in which these conditions are modified …

Damping of quasi-two-dimensional internal wave attractors by rigid-wall friction

F Beckebanze, C Brouzet, IN Sibgatullin… - Journal of Fluid …, 2018 - cambridge.org
The reflection of internal gravity waves at sloping boundaries leads to focusing or
defocusing. In closed domains, focusing typically dominates and projects the wave energy …