Experimental investigation of the compressible Richtmyer-Meshkov instability from a broad-spectrum, multimode initial perturbation

Conference · Sat Nov 01 00:00:00 EST 1997

OSTI ID:289274

Farley, D; Peyser, T; Miller, P; Logory, L; Stry, P

Experiments have been conducted using the Nova laser system to investigate the growth of the Richtmyer-Meshkov (RM) instability resuling from a strong shock wave (M{approximately}30) crossing a prescribed well-defined initial multimode perturbation. The perturbation was a 100 mode superposition of 1 {micro}m amplitude sine waves with randomly generated phases between 0 and 2{pi}. The two working fluids were fluidized brominated plastic and carbon resorcinol foam, giving a post-shock Atwood number of approximately 0.6. The present experimental results give a power-law coefficient of 0.87 {+-} 0.2 for the growth of the interface. This value is higher than results previously published.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 289274
• Report Number(s): UCRL-JC-125444; CONF-970657-; ON: DE98050919
• Resource Relation: Conference: 6. international workshop on physics of compressible turbulent mixing, Marseille (France), 18-21 Jun 1997; Other Information: PBD: Nov 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
INTERFACES
INSTABILITY
SHOCK WAVES
NOVA FACILITY
PLASTICS
BROMINATION
CARBON
FOAMS
RESORCINOL