Rayleigh-Taylor Instability Experiments Examining Feedthrough Growth in an Incompressible, Convergent Geometry

Journal Article · Wed Apr 01 00:00:00 EST 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.80.3763· OSTI ID:601039

Weir, S T; Chandler, E A; Goodwin, B T ^[1]

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1. Lawrence Livermore National Laboratory, University of California, P.O. Box 808, Livermore, California 94551 (United States)

We have performed Rayleigh-Taylor instability and feedthrough growth experiments in a 2D cylindrically convergent geometry by imploding gelatin cylinders with high-pressure gases. Instability growth was seeded by fabricating sinusoidal undulations on the outer surfaces of the cylinders, which were then observed during implosion with high-speed framing cameras. These experiments are the first to study feedthrough perturbation growth in an incompressible, convergent geometry. We compare the results to small-amplitude perturbation analysis and to a recent radiation-drive feedthrough experiment. {copyright} {ital 1998} {ital The American Physical Society}

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 601039
• Journal Information: Physical Review Letters, Vol. 80, Issue 17; Other Information: PBD: Apr 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
RAYLEIGH-TAYLOR INSTABILITY
GROWTH
GEOMETRY
INCOMPRESSIBLE FLOW
HIGH PRESSURE
PERTURBATION THEORY
RADIATIONS
FABRICATION