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On the three-dimensional Rayleigh{endash}Taylor instability

Journal Article · · Physics of Fluids (1994)
DOI:https://doi.org/10.1063/1.869984· OSTI ID:336672
; ; ;  [1]
  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

The three-dimensional Rayleigh{endash}Taylor instability is studied using a lattice Boltzmann scheme for multiphase flow in the nearly incompressible limit. This study focuses on the evolution of the three-dimensional structure of the interface. In addition to the bubble and spike fronts, a saddle point is found to be another important landmark on the interface. Two layers of heavy-fluid roll-ups, one at the spike tip and the other at the saddle point, were observed. The secondary instability in the horizontal planes entangles the already complicated structure of the interface. Parallel computations are utilized to accommodate the massive computational requirements of the simulations. {copyright} {ital 1999 American Institute of Physics.}

OSTI ID:
336672
Journal Information:
Physics of Fluids (1994), Journal Name: Physics of Fluids (1994) Journal Issue: 5 Vol. 11; ISSN 1070-6631; ISSN PHFLE6
Country of Publication:
United States
Language:
English

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