Mechanism of longitudinal magnetic field suppressed Richtmyer-Meshkov instability
نویسندگان
چکیده
منابع مشابه
Hypervelocity Richtmyer–Meshkov instability
The Richtmyer–Meshkov instability is numerically investigated for strong shocks, i.e., for hypervelocity cases. To model the interaction of the flow with non-equilibrium chemical effects typical of high-enthalpy flows, the Lighthill–Freeman ideal dissociating gas model is employed. Richtmyer’s linear theory and the impulse model are extended to include equilibrium dissociation chemistry. Numeri...
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■ Abstract The Richtmyer-Meshkov instability arises when a shock wave interacts with an interface separating two different fluids. It combines compressible phenomena, such as shock interaction and refraction, with hydrodynamic instability, including nonlinear growth and subsequent transition to turbulence, across a wide range of Mach numbers. This review focuses on the basic physical processes ...
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30 LLE Review, Volume 77 In inertial confinement fusion (ICF) implosions, a laser irradiation induces a shock wave propagating through the target. During the shock transit time, the ablation front travels at a constant velocity, and any surface perturbations could grow due to the Richtmyer-Meshkov (RM)–like instability.1–5 Later, when a rarefaction wave reaches the ablation surface, the acceler...
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Two novel experiments are reported which improve upon previous experimental studies of Richtmyer-Meshkov instability in that very well controlled initial interfaces are obtained. The first is an incompressible experiment in which an impulsive acceleration is given to a system of two liquids by bouncing it off of a fixed spring. The second is a shock tube experiment in which a well controlled fl...
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The acceleration of a material interface by a shock wave generates an interface instability known as the Richtmyer-Meshkov instability. Previous attempts to model the growth rate of the instability have produced values that are almost twice that of the experimental measurements. This article presents numerical simulations using front tracking that for the rst time are in quantitative agreement ...
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ژورنال
عنوان ژورنال: Acta Physica Sinica
سال: 2020
ISSN: 1000-3290
DOI: 10.7498/aps.69.20200363