Rossby waves in astrophysics
Rossby waves are a pervasive feature of the large-scale motions of the Earth's atmosphere
and oceans. These waves (also known as planetary waves and r-modes) also play an …
and oceans. These waves (also known as planetary waves and r-modes) also play an …
Equatorial magnetohydrodynamic shallow water waves in the solar tachocline
T Zaqarashvili - The Astrophysical Journal, 2018 - iopscience.iop.org
The influence of a toroidal magnetic field on the dynamics of shallow water waves in the
solar tachocline is studied. A sub-adiabatic temperature gradient in the upper overshoot …
solar tachocline is studied. A sub-adiabatic temperature gradient in the upper overshoot …
Edge-coherent oscillation providing nearly continuous transport during edge-localized mode mitigation by n= 1 resonant magnetic perturbation in HL-2A
TF Sun, Y Liu, XQ Ji, YQ Liu, R Ke, JM Gao… - Nuclear …, 2021 - iopscience.iop.org
An edge-coherent oscillation (ECO) with a bursting feature was observed in the steep-
gradient pedestal region of H-mode plasmas in the HL-2A tokamak, where the type-I edge …
gradient pedestal region of H-mode plasmas in the HL-2A tokamak, where the type-I edge …
Vorticity wave interaction, Krein collision, and exceptional points in shear flow instabilities
C Meng, Z Guo - Physical Review E, 2023 - APS
We relate the model of vorticity wave interaction to Krein collision, PT-symmetry breaking,
and the formation of exceptional points in shear flow instabilities. We show that the …
and the formation of exceptional points in shear flow instabilities. We show that the …
Understanding the destabilizing role for surface tension in planar shear flows in terms of wave interaction
Both surface tension and buoyancy force in stable stratification act to restore perturbed
interfaces back to their initial positions. Hence, both are intuitively considered as stabilizing …
interfaces back to their initial positions. Hence, both are intuitively considered as stabilizing …
[HTML][HTML] Coupling of damped and growing modes in unstable shear flow
AE Fraser, PW Terry, EG Zweibel, MJ Pueschel - Physics of Plasmas, 2017 - pubs.aip.org
Analysis of the saturation of the Kelvin-Helmholtz instability is undertaken to determine the
extent to which the conjugate linearly stable mode plays a role. For a piecewise-continuous …
extent to which the conjugate linearly stable mode plays a role. For a piecewise-continuous …
Edge-wave phase shifts versus normal-mode phase tilts in an Eady problem with a sloping boundary
One mechanistic interpretation of baroclinic instability is that of mutual constructive
interference of Rossby edge waves. The suppression of baroclinic instability over slopes has …
interference of Rossby edge waves. The suppression of baroclinic instability over slopes has …
Inertio–elastic instability of a vortex column
Inertio–elastic instability of a vortex column Page 1 J. Fluid Mech. (2022), vol. 937, A27, doi:10.1017/jfm.2022.122
Inertio–elastic instability of a vortex column Anubhab Roy1,‡, Piyush Garg1, Jumpal …
Inertio–elastic instability of a vortex column Anubhab Roy1,‡, Piyush Garg1, Jumpal …
Normal form of synchronization and resonance between vorticity waves in shear flow instability
A minimal model of linearized two-dimensional shear instabilities can be formulated in terms
of an action-at-a-distance, phase-locking resonance between two vorticity waves, which …
of an action-at-a-distance, phase-locking resonance between two vorticity waves, which …
Shear flow instabilities in shallow-water magnetohydrodynamics
Within the framework of shallow-water magnetohydrodynamics, we investigate the linear
instability of horizontal shear flows, influenced by an aligned magnetic field and stratification …
instability of horizontal shear flows, influenced by an aligned magnetic field and stratification …