Abstract
The present article is a theoretical study of the combined propagation of acoustic and internal waves of finite amplitude in a (horizontally, say) stratified fluid. The linear theory of small amplitude waves predicts that the two waves (i.e., the fluctuations in acoustic pressure and in vertical particle velocity or displacement) are in general coupled. The waves are decoupled whenever the typical wavenumbers are large compared with the inverse of the scale height for the stratification. Furthermore, a horizontally propagating acoustic wave with zero vertical particle displacement (or velocity), when this is possible, is always decoupled from the internal waves, according to linear theory. In a weakly nonlinear theory, however, the waves may be coupled. A time independent radiation pressure is formed within a standing, horizontally directed acoustic wave, which produces a stationary vertical displacement of the particles. Experimental evidence of this effect has been reported elsewhere [1].
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References
H. Hobæk, J. Naze Tjøtta, & S. Tjøtta. Nonlinear effects from standing sound waves in a stratified fluid. Frontiers of Nonlinear Acoustics — 12th ISNA. edited by M. F. Hamilton and D. T. Blackstock (Elsevier. London, 1990), pp. 159–164.
S. Tjøtta, On some nonlinear effects in sound fields, with special emphasis on the generation of vorticity and the formation of streaming patterns, Archiv for Mathematik og Naturvidenskab, B. Liv. Nr. 1 & 2, Oslo (1959).
J. Naze Tjøtta & S. Tjøtta, Nonlinear equations of acoustics, Frontiers of Nonlinear Acoustics — 12th ISNA. edited by M. F. Hamilton and D. T. Blackstock (Elsevier, London, 1990), pp. 80–97.
J. Naze Tjøtta & S. Tjøtta, Sur le transport de masse produit par des oscillations en milieu compressible, dissipatif et inhomogène, C. R. Acad. Sci. Paris 277 série A, 61–64 (1974).
J. Naze Tjøtta & S. Tjøtta, Sur le transport de masse produit par des oscillations en milieu stratifié, C. R. Acad. Sci. Paris 278 série B, 1107–1110 (1974).
A. Bertelsen, A. Svardal, and S. Tjøtta, Nonlinear streaming effects associated with oscillating cylinders, J. Fluid Mechanics, 59, 493–511 (1973).
A. Bertelsen, An experimental investigation of high Reynolds number steady streaming generated by oscillating cylinders, J. Fluid Mechanics, 64, 589–597 (1974).
J. T. Stuart, Double boundary layers in oscillatory viscous flow, J. Fluid Mech., 74, 673–687 (1966).
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© 1991 Springer-Verlag Berlin Heidelberg
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Naze-Tjøtta, J., Tjøtta, S. (1991). Nonlinear Propagation of Acoustic and Internal Waves in a Stratified Fluid. In: Gatignol, R., Soubbaramayer (eds) Advances in Kinetic Theory and Continuum Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-50235-4_17
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DOI: https://doi.org/10.1007/978-3-642-50235-4_17
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