Instability growth patterns of a shock-accelerated thin fluid layer

Journal Article · Sun Jan 31 23:00:00 EST 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.70.583· OSTI ID:6901192

Jacobs, J W ^[1]; Klein, D L; Jenkins, D G; Benjamin, R F ^[2]

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1. Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, Arizona 85721 (United States)
2. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

Laser-induced fluorescence imaging of a shock-accelerated thin gas layer, produced by a planar SF[sub 6] jet in air, shows multiple flow evolutions. Richtmyer-Meshkov instability causes spatially periodic perturbations initially imposed on the jet to develop into one of three distinct flow patterns, indicating nonlinear instability growth. Slight differences in the vorticity distribution deposited on the air-SF[sub 6] interfaces by the shock interaction produce a bifurcated flow, observed as mushroom-shaped or sinuous-shaped interfacial patterns.

• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6901192
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:5; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
ACCELERATION
AIR
DATA
DENSITY
EXPERIMENTAL DATA
FLUIDS
FLUORESCENCE
FLUORIDES
FLUORINE COMPOUNDS
GASES
HALIDES
HALOGEN COMPOUNDS
INFORMATION
INSTABILITY
INTERFACES
JETS
LASER SPECTROSCOPY
LUMINESCENCE
NUMERICAL DATA
PHYSICAL PROPERTIES
SHOCK WAVES
SPECTROSCOPY
STABILITY
SULFUR COMPOUNDS
SULFUR FLUORIDES
VELOCITY