Richtmyer-Meshkov experiments on the Nova laser at high compression

Journal Article · Sun Mar 21 23:00:00 EST 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.70.1806· OSTI ID:6701232

Dimonte, G; Remington, B ^[1]

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1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

We investigate the shock induced Richtmyer-Meshkov instability at high compression using the Nova laser. The instability and shock characteristics are measured radiographically in planar two-fluid targets with Atwood number [lt]0. The growth of imposed interfacial perturbations [eta]=[eta][sub 0] sin[ital kx] agrees with linear theory if the pre- and postshock initial amplitudes are averaged. When [ital k][eta][similar to]2, the fundamental mode saturates and harmonics emerge producing a slowly developing bubble and spike.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6701232
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:12; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
700350 -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
AMPLITUDES
COMPRESSION
DATA
DENSITY
EXPERIMENTAL DATA
FLUIDS
HARMONICS
INDUSTRIAL RADIOGRAPHY
INFORMATION
INSTABILITY
INTERFACES
LASER-PRODUCED PLASMA
LASERS
NUMERICAL DATA
ONE-DIMENSIONAL CALCULATIONS
OSCILLATION MODES
OSCILLATIONS
PHYSICAL PROPERTIES
PLASMA
PLASMA INSTABILITY
SATURATION
SHOCK WAVES
SIMULATION
TARGETS
TRAJECTORIES
X-RAY RADIOGRAPHY