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Atomistic Dynamics of the Richtmyer-Meshkov Instability in Cylindrical and Planar Geometries

Zhakhovskii, V. V. and Zybin, S. V. and Abarzhi, S. I. and Nishihara, K. (2006) Atomistic Dynamics of the Richtmyer-Meshkov Instability in Cylindrical and Planar Geometries. In: Shock compression of condensed matter--2005 : proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter : held in Baltimore, Maryland, 31 July-5 August 2005. AIP Conference Proceedings. No.845. American Institute of Physics , Melville, NY, pp. 433-436. ISBN 0-7354-0341-4.

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We apply molecular dynamics (MD) simulations to study the evolution of the shock-driven Richtmyer-Meshkov instability (RMI) in the cylindrical and planar geometries. Compared to traditional hydrodynamic simulations, MD has a number of fundamental advantages: it accounts for strong gradients of the pressure and temperature, and captures accurately the heat and mass transfers at the early stage (shock passage) as well as the late stage (perturbation growth) of the instability evolution. MD has no hydrodynamic limitations for spatial resolution and thermodynamic quasi-equilibrium at atomic scale. We study the instability evolution for different perturbation modes and analyze the role of the vorticity production for RMI dynamics.

Item Type:Book Section
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Additional Information:© 2006 American Institute of Physics. SVZ is supported by DOE ASC, ONR and ARO MURI. SIA is supported by NRL and by DOE ASC, contract #B523820.
Funding AgencyGrant Number
Department of Energy (DOE)B523820
Office of Naval Research (ONR)UNSPECIFIED
Army Research Office (ARO)UNSPECIFIED
Naval Research LaboratoryUNSPECIFIED
Subject Keywords:molecular dynamics method; shock wave effects; hydrodynamics; thermodynamics
Series Name:AIP Conference Proceedings
Issue or Number:845
Record Number:CaltechAUTHORS:ZHAaipcp06c
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4784
Deposited By: Archive Administrator
Deposited On:06 Sep 2006
Last Modified:02 Oct 2019 23:16

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