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Rayleigh-Taylor instabilities (RTI) play an important role in the evolution of inertial confinement fusion (ICF) processes, while analytical prediction of the RTI growth rate often fails to reach an agreement with the experimental and…

等离子体物理 · 物理学 2024-08-21 Y. Guo , D. Wu , J. Zhang

We analyse the behaviour of the linear phase of the Rayleigh-Taylor instability (RTI) in the presence of a foam. Such a problem may be relevant, for example, to some inertial confinement fusion (ICF) scenarios such as foams within the…

等离子体物理 · 物理学 2026-05-21 Antoine Bret , Audrey DeVault , Skylar Dannhoff , Maria Gatu Johnson , Chikang Li , Johan Frenje

We study the modification of the classical criterion for the linear onset and growth rate of the Rayleigh-Taylor instability (RTI) in a partially ionized (PI) plasma in the one-fluid description, considering a generalized induction…

太阳与恒星天体物理 · 物理学 2015-06-18 A. J. Diaz , E. Khomenko , M. Collados

A number of applications utilise the energy focussing potential of imploding shells to dynamically compress matter or magnetic fields, including magnetised target fusion schemes. This paper examines the effect of fluid rotation on the…

流体动力学 · 物理学 2019-04-29 Justin Huneault , David Plant , Andrew Higgins

When a liquid drop strikes a deep pool of a second liquid, an impact crater opens while the liquid of the drop decelerates and spreads on the surface of the crater. If the density of the drop is larger than the surrounding, the interface…

流体动力学 · 物理学 2020-12-21 V. Lherm , R. Deguen , T. Alboussière , M. Landeau

The effects of isothermal stratification strength on vorticity dynamics for single-mode Rayleigh-Taylor instability (RTI) are examined using two dimensional fully compressible wavelet-based direct numerical simulations. The simulations…

流体动力学 · 物理学 2018-12-17 Scott A. Wieland , Peter E. Hamlington , Scott J. Reckinger , Daniel Livescu

We study the Rayleigh-Taylor instability (RTI) of electrostatic plane wave perturbations in compressible relativistic magnetoplasma fluids with thermal ions under gravity in three different cases of when (i) electrons are in isothermal…

等离子体物理 · 物理学 2024-12-31 R. Dey , A. P. Misra

We numerically calculate the growth and saturation of the Rayleigh-Taylor instability caused by the deceleration of relativistic outflows with Lorentz factor {\Gamma} = 10, 30, and 100. The instability generates turbulence whose scale…

高能天体物理现象 · 物理学 2015-06-15 Paul C. Duffell , Andrew I. MacFadyen

The linear growth rate of the Rayleigh-Taylor instability (RTI) at ionization fronts is investigated via perturbation analysis in the limit of incompressible fluids. In agreement with previous numerical studies is found that absorption of…

宇宙学与河外天体物理 · 物理学 2015-06-17 Massimo Ricotti

We address the linear stability of a discontinuous surface of a relativistic flow in the context of a jet that oscillates radially as it propagates. The restoring force of the oscillation is expected to drive a Rayleigh-Taylor instability…

高能天体物理现象 · 物理学 2017-09-20 Jin Matsumoto , Miguel A. Aloy , Manel Perucho

The distribution functions of field fluctuations of the turbulent mixing layer produced by a Rayleigh-Taylor instability (RTI) have long been hypothesized to involve bimodal effects. The present work reviews existing quantitative and…

流体动力学 · 物理学 2024-11-26 R. Watteaux , J. A. Redford , A. Llor

We study the Rayleigh-Taylor instability (RTI) at a prominence-corona transition region in a non-linear regime. Our aim is to understand how the presence of neutral atoms in the prominence plasma influences the instability growth rate, and…

太阳与恒星天体物理 · 物理学 2014-05-08 E. Khomenko , A. Diaz , A. de Vicente , M. Collados , M. Luna

Instabilities, where small fluctuations seed the formation of large-scale structures, govern dynamics in a variety of fluid systems. The Rayleigh-Taylor instability (RTI), present from tabletop to astronomical scales, is an iconic example…

The Rayleigh-Taylor instability (RTI) arises at the interface between two fluids of different densities, notably when a heavier fluid lies above a lighter one in an effective gravitational field. In astrophysical systems with high…

高能天体物理现象 · 物理学 2025-06-05 Qiqi Jiang , Guang-Xing Li , Chandra B. Singh

The effect of rotation on the classical gravity-driven Rayleigh-Taylor instability has been shown to influence the scale of the perturbations that develop at the unstable interface and consequently alter the speed of propagation of the…

流体动力学 · 物理学 2018-08-29 M. M. Scase , R. J. A. Hill

Early studies on Rayleigh-Taylor instability (RTI) primarily relied on the Navier-Stokes (NS) model. As research progresses, it becomes increasingly evident that the kinetic information that the NS model failed to capture is of great value…

流体动力学 · 物理学 2024-07-04 Jie Chen , Aiguo Xu , Yudong Zhang , Dawei Chen , Zhihua Chen

This work examines the effect of the embedded magnetic field strength on the non-linear development of the magnetic Rayleigh-Taylor Instability (RTI) (with a field-aligned interface) in an ideal gas close to the incompressible limit in…

太阳与恒星天体物理 · 物理学 2017-09-20 Jack Carlyle , Andrew Hillier

Nonlinear evolutions of two-dimensional single-mode compressible Rayleigh--Taylor instability (RTI) with isothermal stratification are investigated in cylindrical geometry via direct numerical simulation for different Atwood numbers…

流体动力学 · 物理学 2025-02-04 Ming Yuan , Zhiye Zhao , Luoqin Liu , Pei Wang , Nan-Sheng Liu , Xi-Yun Lu

The Rayleigh-Taylor (RT) instability is ubiquitously observed, yet has traditionally been studied using ideal fluid models. Collisionality can vary strongly across the fluid interface, and previous work demonstrates the necessity of kinetic…

流体动力学 · 物理学 2024-03-15 John Rodman , James Juno , Bhuvana Srinivasan

Rayleigh-Taylor instability (RTI) occurs in a range of industrial and natural processes. Whereas the vast majority of existing studies have considered constant acceleration, RTI is in most instances driven by variable acceleration. Here we…

流体动力学 · 物理学 2019-11-01 Desmond L. Hill , Aklant K. Bhowmick , Snezhana I. Abarzhi
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