Density-ratio-invariant mean-species profile of classical Rayleigh-Taylor mixing

Autor:	Xinting Zhang, Baolin Tian, Yousheng Zhang, Yu-cang Ruan
Rok vydání:	2020
Předmět:	Fluid Flow and Transfer Processes Physics Computational Mechanics Invariant (physics) Mole fraction Instability Computational physics Physics::Fluid Dynamics symbols.namesake Supernova Modeling and Simulation symbols Density ratio Rayleigh scattering Inertial confinement fusion
Zdroj:	Physical Review Fluids. 5
ISSN:	2469-990X
DOI:	10.1103/physrevfluids.5.054501
Popis:	Understanding mixing induced by Rayleigh-Taylor instability is of great interest for Inertial Confinement Fusion and Supernova physics. We study species profiles of classical Rayleigh-Taylor mixing numerically with direct numerical simulations and theoretically by asymptotic analysis. A density-independent hybrid profile of mass and molar fraction is derived which shows good agreement with numerical results and experiments. Using this hybrid profile we find an analytical formula for mass and molar fraction which can be further applied to derive mixing mass and mixing degree.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e09c434e623fd5d63eb69db8f5918b46 https://doi.org/10.1103/physrevfluids.5.054501 Zobrazit plný text záznamu