Dynamic stabilization of classical Rayleigh-Taylor instability

Journal Article · Thu Sep 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3633487· OSTI ID:22043507

Piriz, A R ^[1]; Piriz, S A ^[2]; Tahir, N A ^[3]

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1. E.T.S.I. Industriales, Universidad de Castilla-La Mancha and Instituto de Investigaciones Energeticas, 13071 Ciudad Real (Spain)
2. Facultad de Ciencias Fisicas, Universidad Complutense de Madrid, 28040 Madrid (Spain)
3. GSI Helmholtzzentrum fuer Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt (Germany)

Dynamic stabilization of classical Rayleigh-Taylor instability is studied by modeling the interface vibration with the simplest possible wave form, namely, a sequence of Dirac deltas. As expected, stabilization results to be impossible. However, in contradiction to previously reported results obtained with a sinusoidal driving, it is found that in general the perturbation amplitude is larger than in the classical case. Therefore, no beneficial effect can be obtained from the vertical vibration of a Rayleigh-Taylor unstable interface between two ideal fluids.

• OSTI ID: 22043507
• Journal Information: Physics of Plasmas, Vol. 18, Issue 9; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
DISTURBANCES
IDEAL FLOW
INTERFACES
PERTURBATION THEORY
RAYLEIGH-TAYLOR INSTABILITY
SIMULATION
STABILIZATION
WAVE FORMS