Rayleigh-Taylor Shock Waves

Olson, B J; Cook, A W

doi:10.1063/1.2821907

Rayleigh-Taylor Shock Waves

Journal Article · Thu Aug 30 00:00:00 EDT 2007 · Physics of Fluids, vol. 19, no. 128108, December 28, 2007, pp. 4

DOI:https://doi.org/10.1063/1.2821907· OSTI ID:943822

Olson, B J; Cook, A W

Beginning from a state of hydrostatic equilibrium, in which a heavy gas rests atop a light gas in a constant gravitational field, Rayleigh-Taylor instability at the interface will launch a shock wave into the upper fluid. The rising bubbles of lighter fluid act like pistons, compressing the heavier fluid ahead of the fronts and generating shocklets. These shocklets coalesce in multidimensional fashion into a strong normal shock, which increases in strength as it propagates upwards. Large-eddy simulations demonstrate that the shock Mach number increases faster in three dimensions than it does in two dimensions. The generation of shocks via Rayleigh-Taylor instability could have profound implications for astrophysical flows.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 943822

Report Number(s):: UCRL-JRNL-234214

Journal Information:: Physics of Fluids, vol. 19, no. 128108, December 28, 2007, pp. 4, Journal Name: Physics of Fluids, vol. 19, no. 128108, December 28, 2007, pp. 4 Vol. 19

Country of Publication:: United States

Language:: English

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71 CLASSICAL AND QUANTUM MECHANICS
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GRAVITATIONAL FIELDS
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RAYLEIGH-TAYLOR INSTABILITY
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References (19)

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