Physics – Fluid Dynamics
Scientific paper
Nov 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aps..dfd..ib01z&link_type=abstract
American Physical Society, Division of Fluid Dynamics Meeting, November 22-24, 1998 Philadelphia, PA, abstract #IB.01
Physics
Fluid Dynamics
Scientific paper
Rayleigh-Taylor and Richtmyer-Meshkov instabilities arise in several high-energy fluid enviroments, including: supersonic combustion; laser (inertial confinement) fusion and supernova astrophysics. We use the ``vortex paradigm'' to guide our understanding and modeling of early-to-intermediate time phenomena at perturbed interfaces and bubbles, including reshock and reacceleration processes. We show the emergence of ``vortex projectiles" or VPs ( dipolar or ring-like coherent structures) and comment on their ubiquity. Acknowlegemets: Since 1989 I have benefited from collaborations with : J. Hawley, X. Yang, R. Samtaney, J. Ray, A. Kotelnikov and D. G. Dritschel. The work has been supported by DOE Grant No. DE-FG0293ER25179 under Drs. Daniel Hitchcock and Fred Howes. Computations were done on the C90 and T3E at Pittsburgh Supercomputing Center and the SP2 at Cornell Theory Center. We also acknowledge the support of CAIP, Rutgers University.
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