Numerical Simulation of Single-Mode 3D Rayleigh-Taylor Instability. (9th November 2022)

• Record Type: Journal Article
• Authors: Kim, Dongyung
• Other Names: Ameur Houari Academic Editor.
• Is Part Of: Modelling and simulation in engineering. Volume 2022(2022)
• Publication Date: 2022-11-09
• Subjects: Engineering -- Simulation methods -- Periodicals; Engineering -- Mathematical models -- Periodicals; 620.004
• DOI: 10.1155/2022/6544820
• Languages: English
• ISSNs: 1687-5591

Abstract

Abstract : Rayleigh-Taylor instability (RTI) is analyzed theoretically by Taylor, and 2-dimensional experimental results are obtained by Lewis in 1950. Over the 72 years, several experiments and theories are developed with the shock-driven Ritchmyer-Meshkov instability (RMI) and the shear-driven Kelvin-Helmholtz instability (KHI). Here, we emphasize the single-mode Rayleigh-Taylor instability (RTI) mixing simulation with a surface area in 3 dimensions. The simulation uses concentration equations and nonzero transport. We observed chaotic interface behavior even for this single-mode simulation, in the sense that the interface appears to have an area proportional to Δ x − 1, with respect to its mesh (non)convergence (i.e., rate of divergence) properties.