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Title: Validation of an Instability Growth Model Using Particle Image Velocimetry Measurements

Abstract

A varicose-profile, thin layer of heavy gas (SF{sub 6} ) in lighter gas (air) is impulsively accelerated by a planar, Mach 1.2 shock, producing the Richtmyer-Meshkov instability. We present the first measurements of the circulation in the curtain during the vortex-dominated, nonlinear stage of the instability evolution. These measurements, based on particle image velocimetry data, are employed to validate an idealized model of the nonlinear perturbation growth. (c) 2000 The American Physical Society.

Authors:
 [1];  [2];  [1];  [1]
  1. Dynamic Experimentation Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  2. Department of Mechanical Engineering, University of New Mexico, Albuquerque, New Mexico 87131 (United States)
Publication Date:
OSTI Identifier:
20216436
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 84; Journal Issue: 19; Other Information: PBD: 8 May 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GAS FLOW; INSTABILITY GROWTH RATES; SHOCK WAVES; VORTEX FLOW; AIR; SULFUR FLUORIDES; EXPERIMENTAL DATA; THEORETICAL DATA

Citation Formats

Prestridge, K., Vorobieff, P., Rightley, P. M., and Benjamin, R. F. Validation of an Instability Growth Model Using Particle Image Velocimetry Measurements. United States: N. p., 2000. Web. doi:10.1103/PhysRevLett.84.4353.
Prestridge, K., Vorobieff, P., Rightley, P. M., & Benjamin, R. F. Validation of an Instability Growth Model Using Particle Image Velocimetry Measurements. United States. doi:10.1103/PhysRevLett.84.4353.
Prestridge, K., Vorobieff, P., Rightley, P. M., and Benjamin, R. F. Mon . "Validation of an Instability Growth Model Using Particle Image Velocimetry Measurements". United States. doi:10.1103/PhysRevLett.84.4353.
@article{osti_20216436,
title = {Validation of an Instability Growth Model Using Particle Image Velocimetry Measurements},
author = {Prestridge, K. and Vorobieff, P. and Rightley, P. M. and Benjamin, R. F.},
abstractNote = {A varicose-profile, thin layer of heavy gas (SF{sub 6} ) in lighter gas (air) is impulsively accelerated by a planar, Mach 1.2 shock, producing the Richtmyer-Meshkov instability. We present the first measurements of the circulation in the curtain during the vortex-dominated, nonlinear stage of the instability evolution. These measurements, based on particle image velocimetry data, are employed to validate an idealized model of the nonlinear perturbation growth. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevLett.84.4353},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 19,
volume = 84,
place = {United States},
year = {2000},
month = {5}
}