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2010 | 117 | 4 | 570-573
Article title

Surface True and Leaky Waves in Subsonic and Supersonic Regions. Explicit Solution of a Simple Model

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EN
Abstracts
EN
A simple model of a surface of a 2D continuum is shown to exhibit subsonic and supersonic surface resonances (leaky waves, pseudosurface waves), i.e. finite-lived excitations, along with usual surface waves (true subsonic surface waves). The physical meaning, controversial in the existing literature, of the surface leaky waves in both regions is discussed by a thought experiment in which a stimulus adjusted to the resonance parameters is applied to the surface. The infinite displacement-stimulus ratio in the long-time limit then is shown to be in power in all the cases of surface states and a finite amplitude of the leaky waves is demonstrated despite an apparent divergence suggested by their algebraic form.
Keywords
EN
Contributors
author
  • The H. Niewodniczański Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Cracow, Poland
  • Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Cracow, Poland
author
  • The H. Niewodniczański Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Cracow, Poland
  • Institute of Physics, Cracow University of Technology, Podchorążych 1, 30-084 Cracow, Poland
References
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  • 9. D. Trzupek, P. Zieliński, to be published
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv117n409kz
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