Quantitative Theory for the Growth Rate and Amplitude of the Compressible Richtmyer-Meshkov Instability at all Density Ratios

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Original languageEnglish
Article number174502
Journal / PublicationPhysical Review Letters
Volume121
Issue number17
Online published26 Oct 2018
Publication statusPublished - 26 Oct 2018

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  • COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: Zhang, Q., Deng, S., & Guo, W. (2018). Quantitative Theory for the Growth Rate and Amplitude of the Compressible Richtmyer-Meshkov Instability at all Density Ratios. Physical Review Letters, 121(17), [174502]. https://doi.org/10.1103/PhysRevLett.121.174502. The copyright of this article is owned by American Physical Society.
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-85055537914&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(4c378264-403a-4185-ae33-a0c694e86cfe).html

Abstract

Theoretical treatment of the Richtmyer-Meshkov instability in compressible fluids is a challenging task due to the presence of compressibility and nonlinearity. In this Letter, we present a quantitative theory for the growth rate and the amplitude of fingers in Richtmyer-Meshkov instability for compressible fluids based on the methods of the two-point Padé approximation and asymptotic matching. Our theory covers the entire time domain from early to late times and is applicable to systems with arbitrary fluid density ratios. The theoretical predictions are in good agreement with data from several independent numerical simulation methods and experiments.

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100
Density Ratio Engineering
100
Compressible Fluid Engineering
100
Asymptotics Mathematics
100
Good Agreement Mathematics
100
Time Domain Mathematics
100
Fluid Density Mathematics
100
Nonlinearity Mathematics
100
Density Material Science
50
Compressibility Engineering
50
Simulation Experime... Engineering
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Citation Format(s)

[ RIS ] [ BibTeX ]
Quantitative Theory for the Growth Rate and Amplitude of the Compressible Richtmyer-Meshkov Instability at all Density Ratios. / Zhang, Qiang; Deng, Shuyan; Guo, Wenxuan.
In: Physical Review Letters, Vol. 121, No. 17, 174502, 26.10.2018.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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