Acoustic Energy and Momentum in a Moving Medium

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dc.creatorStone, Michael
dc.date1999-09-21
dc.date.accessioned2026-07-07T12:16:44Z
dc.date.available2026-07-07T12:16:44Z
dc.descriptionBy exploiting the mathematical analogy between the propagation of sound in a non-homogeneous potential flow and the propagation of a scalar field in a background gravitational field, various wave ``energy'' and wave ``momentum'' conservation laws are established in a systematic manner. In particular the acoustic energy conservation law due to Blokhintsev appears as the result of the conservation of a mixed co- and contravariant energy-momentum tensor, while the exchange of relative energy between the wave and the mean flow mediated by the radiation stress tensor, first noted by Longuet-Higgins and Stewart in the context of ocean waves, appears as the covariant conservation of the doubly contravariant form of the same energy-momentum tensor.
dc.description25 Pages, LateX
dc.identifierhttps://arxiv.org/abs/cond-mat/9909315
dc.identifierhttp://arxiv.org/abs/cond-mat/9909315
dc.identifierPhys.Rev.E62:1341-1350,2000
dc.identifierdoi:10.1103/PhysRevE.62.1341
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211894
dc.subjectCondensed Matter
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleAcoustic Energy and Momentum in a Moving Medium
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