Density gradient stabilization of the Richtmyer--Meshkov instability

Journal Article · Fri Nov 01 04:00:00 EST 1991 · Physics of Fluids A; (United States)

DOI:https://doi.org/10.1063/1.858152· OSTI ID:5167791

Mikaelian, K O ^[1]

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1. University of California, Lawrence Livermore National Laboratory, Livermore, California (USA)

Numerical and analytical results on the growth rate of the Richtmyer--Meshkov (RM) instability in continuous density profiles are presented, and this paper relates them to the Rayleigh--Taylor (RT) instability by treating the shock as an instantaneous acceleration of incompressible fluids. Most of this work is in the linear regime, where it is found that density gradient stabilization is even more effective for the RM instability than for the RT instability. Recent experimental results are discussed and a numerical simulation of a shock-tube experiment with a continuous density profile between two gases is presented.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5167791
• Journal Information: Physics of Fluids A; (United States), Journal Name: Physics of Fluids A; (United States) Vol. 3:11; ISSN 0899-8213; ISSN PFADE
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
COMPUTER CALCULATIONS
DENSITY
ERUPTIVE VARIABLE STARS
ICF DEVICES
INSTABILITY
INSTABILITY GROWTH RATES
PHYSICAL PROPERTIES
RAYLEIGH-TAYLOR INSTABILITY
SHOCK WAVES
STABILIZATION
STARS
SUPERNOVAE
THERMONUCLEAR DEVICES
VARIABLE STARS