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相关论文: Scale-dependent Rayleigh-Taylor dynamics with vari…

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Rayleigh-Taylor (RT) instabilities are prevalent in many physical regimes ranging from astrophysical to laboratory plasmas and have primarily been studied using fluid models, the majority of which have been ideal fluid models. This work is…

等离子体物理 · 物理学 2022-07-13 John Rodman , Petr Cagas , Ammar Hakim , Bhuvana Srinivasan

The Rayleigh-Taylor Instability (RTI) under multi-mode perturbation in compressible flow is probed via the Discrete Boltzmann Modeling (DBM) with tracers. The distribution of tracers provides clear boundaries between light and heavy fluids…

流体动力学 · 物理学 2022-10-28 Hanwei Li , Aiguo Xu , Ge Zhang , Yiming Shan

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

Two-dimensional single-mode Rayleigh-Taylor Instability (RTI) is simulated using an accurate and robust front-tracking/ghost-fluid method (FT/GFM) with high-order weighted essentially non-oscillatory (WENO) scheme. We compare our numerical…

流体动力学 · 物理学 2026-01-01 James Burton , Tulin Kaman

Rayleigh-Taylor interfacial mixing has critical importance in a broad range of processes in nature and technology. In most instances Rayleigh-Taylor dynamics is induced by variable acceleration, whereas the bulk of existing studies is…

流体动力学 · 物理学 2019-02-13 Arun Pandian , Snezhana I. Abarzhi

The single-mode Rayleigh-Taylor instability (smRTI) is well defined, poorly understood, and applicable to many fluid flows directly and through its relationship to multi-mode Rayleigh-Taylor models. This study reproduces three low-Atwood…

流体动力学 · 物理学 2016-03-07 Maxwell Hutchinson

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

Rayleigh-Taylor (RT) mixing has critical importance for a broad range of process in nature and technology, from supernovae and plasma fusion to oil recovery and nano-fabrication. In most instances, RT flows are driven by variable…

等离子体物理 · 物理学 2019-01-16 Snezhana I. Abarzhi

We derive scaling relations based on free-fall and isotropy assumptions for the kinematic small-scale dynamo growth rate and amplification factor over the course of the mixing, saturation, and decay phases of the Rayleigh-Taylor instability…

流体动力学 · 物理学 2021-11-04 Valentin Skoutnev , Elias R. Most , Amitava Bhattacharjee , Alexander A. Philippov

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

The dynamics of self-similar Rayleigh-Taylor (RT) mixing layers are investigated across a broad range of Atwood and Reynolds numbers using the statistically stationary Rayleigh-Taylor (SRT) flow configuration - a computational framework…

流体动力学 · 物理学 2026-03-11 Chian Yeh Goh , Daniel Brito Matehuala , Guillaume Blanquart

We develop a novel multiscale model of interface motion for the Rayleigh-Taylor instability (RTI) and Richtmyer-Meshkov instability (RMI) for two-dimensional, inviscid, compressible flows with vorticity, which yields a fast-running…

计算物理 · 物理学 2020-01-29 Raag Ramani , Steve Shkoller

We study the 3D topology of Rayleigh-Taylor (RT) and Richtmyer-Meshkov (RM) single-modes, which includes bubbles, jets and saddle points. We present an analytic description of the interface as a whole, for arbitrary time-dependant…

流体动力学 · 物理学 2007-05-23 N. A. Inogamov , M. Tricottet , A. M. Oparin , S. Bouquet

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

Rayleigh-Taylor (RT) instability occurs in a variety of scenario as a consequence of fluids of different densities pushing against the density gradient. For example, it is expected to occur in the ion acceleration of solid density targets…

等离子体物理 · 物理学 2024-09-24 Z. Liu , M. K. Zhao , P. L. Bai , X. J. Yang , R. Qi , Y. Xu , J. W. Wang , Y. X. Leng , J. H. Bin , R. X. Li

Richtmyer-Meshkov instability (RMI) plays important role in nature and technology, from supernovae and fusion to scramjets and nano-fabrication. Canonical Richtmyer-Meshkov instability is induced by a steady shock and impulsive…

流体动力学 · 物理学 2020-05-22 Aklant K. Bhowmick , Desmond L. Hill , Miccal Matthews , Snezhana I. Abarzhi

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

The non-linear regime of Rayleigh-Taylor instability (RTI) in a radiation supported atmosphere, consisting of two uniform fluids with different densities, is studied numerically. We perform simulations using our recently developed numerical…

高能天体物理现象 · 物理学 2013-01-17 Yan-Fei Jiang , Shane W. Davis , James Stone

Three-dimensional miscible Rayleigh--Taylor (RT) turbulence at small Atwood number and at Prandtl number one is investigated by means of high resolution direct numerical simulations of the Boussinesq equations. RT turbulence is a…

混沌动力学 · 物理学 2015-05-19 G. Boffetta , A. Mazzino , S. Musacchio , L. Vozella

Fingering instabilities akin to the Rayleigh-Taylor (RT) instability in fluids have been observed in a binary granular system consisting of dense and small particles layered on top of lighter and larger particles, when the system is…