http://www.cnr.it/ontology/cnr/individuo/prodotto/ID244520
Energetic properties of acoustic fields (Articolo in rivista)
- Type
- Label
- Energetic properties of acoustic fields (Articolo in rivista) (literal)
- Anno
- 1994-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1121/1.410585 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Giuliano Schiffrer (1), Domenico Stanzial (2) (literal)
- Pagina inizio
- Pagina fine
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- Rivista
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
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- (1) University of Ferrara, Physics Department, Via Paradiso 12, I-44100 Ferrara, Italy
(2) National Research Council of Italy, Cemoter, Via Canal Blanco 28, I-44044 Ferrara, Italy (literal)
- Titolo
- Energetic properties of acoustic fields (literal)
- Abstract
- From the energy density and the intensity vector of a general acoustic field in the linear adiabatic approximation the corresponding time-averaged quantities, and active and reactive intensities, are derived and the inherent ambiguities and some of their properties are discussed. The concept of pressure-velocity phase relation and of velocity of acoustic energy transport are also introduced for a general acoustic field. It is shown that this velocity in modulus cannot exceed the speed of sound, it vanishes only if acoustic pressure and velocity are in quadrature, while it reaches its maximal value only if p and v are in accordance or in opposition of phase. (literal)
- Prodotto di
- Autore CNR
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