Journal article
Richtmyer–Meshkov instability growth: experiment, simulation and theory
Journal of fluid mechanics, v 389, pp 55-79
25 Jun 1999
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Richtmyer–Meshkov instability is investigated for negative Atwood number and
two-dimensional sinusoidal perturbations by comparing experiments, numerical simulations
and analytic theories. The experiments were conducted on the NOVA laser
with strong radiatively driven shocks with Mach numbers greater than 10. Three
different hydrodynamics codes (RAGE, PROMETHEUS and FronTier) reproduce
the amplitude evolution and the gross features in the experiment while the fine-scale
features differ in the different numerical techniques. Linearized theories correctly calculate
the growth rates at small amplitude and early time, but fail at large amplitude
and late time. A nonlinear theory using asymptotic matching between the linear theory
and a potential flow model shows much better agreement with the late-time and
large-amplitude growth rates found in the experiments and simulations. We vary the
incident shock strength and initial perturbation amplitude to study the behaviour of
the simulations and theory and to study the effects of compression and nonlinearity.
Metrics
Details
- Title
- Richtmyer–Meshkov instability growth: experiment, simulation and theory
- Creators
- RICHARD L. Holmes - Los Alamos National LaboratoryGUY Dimonte - Lawrence Livermore National LaboratoryBRUCE Fryxell - Goddard Space Flight CenterMICHAEL L. Gittings - Los Alamos National Laboratory, Los Alamos, NM 87545, USAScience Applications International Corporation, San Diego, CA 92121, USAJOHN W. Grove - Los Alamos National Laboratory, Los Alamos, NM 87545, USADepartment of Applied Mathematics and Statistics, University at Stony Brook, Stony Brook, NY 11794-3600, USAMARILYN Schneider - Lawrence Livermore National LaboratoryDAVID H. Sharp - Los Alamos National LaboratoryALEXANDER L. Velikovich - Berkeley Research AssociatesROBERT P. Weaver - Los Alamos National LaboratoryQIANG Zhang - Science Applications International CorporationMichael C Schneider - Pediatrics
- Publication Details
- Journal of fluid mechanics, v 389, pp 55-79
- Publisher
- Cambridge University Press
- Number of pages
- 25
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Pediatrics
- Web of Science ID
- WOS:000081596900003
- Scopus ID
- 2-s2.0-0032650314
- Other Identifier
- 991019168218404721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Mechanics
- Physics, Fluids & Plasmas