Experimental evidence of random shock-wave intermittency
We report the experimental observation of intermittency in a regime dominated by random
shock waves on the surface of a fluid. We achieved such a nondispersive surface-wave field …
shock waves on the surface of a fluid. We achieved such a nondispersive surface-wave field …
[HTML][HTML] Precession resonance of Rossby wave triads and the generation of low-frequency atmospheric oscillations
The dynamics of the Earth's atmosphere is characterized by a wide spectrum of oscillations,
ranging from hourly to interdecadal and beyond. The low-frequency component of the …
ranging from hourly to interdecadal and beyond. The low-frequency component of the …
Self-similar subgrid-scale models for inertial range turbulence and accurate measurements of intermittency
A class of spectral subgrid models based on a self-similar and reversible closure is studied
with the aim to minimize the impact of subgrid scales on the inertial range of fully developed …
with the aim to minimize the impact of subgrid scales on the inertial range of fully developed …
Universal functions for Burgers turbulence
For the steady state of Burgers turbulence, Saffman [in Topics in Nonlinear Physics
(Springer, Berlin, 1968), pp. 485–614] derived analytical expressions for the second-order …
(Springer, Berlin, 1968), pp. 485–614] derived analytical expressions for the second-order …
A new mechanism for Maunder-like solar minima: Phase synchronization dynamics in a simple nonlinear oscillator of magnetohydrodynamic Rossby waves
B Raphaldini, E Medeiros, CFM Raupp… - The Astrophysical …, 2020 - iopscience.iop.org
The long-term solar cycle variability and Grand solar minima remain open questions from a
theoretical point of view. Recently, a growing basis of evidence points out to the role of the …
theoretical point of view. Recently, a growing basis of evidence points out to the role of the …
Upscale transfer of waves in one-dimensional rotating shallow water
We study the inverse flux of waves in one of the simplest geophysical fluid dynamics models:
one-dimensional rotating shallow water equations. Based on direct numerical integration of …
one-dimensional rotating shallow water equations. Based on direct numerical integration of …
Geophysical turbulence dominated by inertia–gravity waves
Recent evidence from both oceanic observations and global-scale ocean model simulations
indicate the existence of regions where low-mode internal tidal energy dominates over that …
indicate the existence of regions where low-mode internal tidal energy dominates over that …
Poles, shocks, and tygers: The time-reversible Burgers equation
We construct a formally time-reversible, one-dimensional forced Burgers equation by
imposing a global constraint of energy conservation, wherein the constant viscosity is …
imposing a global constraint of energy conservation, wherein the constant viscosity is …
[HTML][HTML] Single-scale two-dimensional-three-component generalized-Beltrami-flow solutions of incompressible Navier-Stokes equations
J Chai, T Wu, L Fang - Physics Letters A, 2020 - Elsevier
Abstract Generalized-Beltrami-flow (GBF) solutions, which are exact solutions of
incompressible Navier-Stokes equations (NSE), are still rare. Most existing GBF solutions …
incompressible Navier-Stokes equations (NSE), are still rare. Most existing GBF solutions …
Dynamically relevant recurrent flows obtained via a nonlinear recurrence function from two-dimensional turbulence
This paper demonstrates the efficient extraction of unstable recurrent flows from two-
dimensional turbulence by using nonlinear triads to diagnose recurrence in direct numerical …
dimensional turbulence by using nonlinear triads to diagnose recurrence in direct numerical …