Nonlinear Effects in Thermoacoustic Pressure Generation Mechanism—Analytic Models

—Influence of nonlinear hydrodynamic effects on formation of pressure pulses investigated in condensed media under pulsed actions leading to fast local variation in their density. In contrast to the ordinary thermoacoustic mechanism where density variation is caused by absorption of the incident rad...

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Bibliographic Details
Published in:Physics of wave phenomena 2024-10, Vol.32 (5), p.378-381
Main Authors: Samokhin, A. A., Pivovarov, P. A., Burtsev, L. A.
Format: Article
Language:English
Subjects:
Acoustics
Density
Fluid flow
Incident radiation
Incompressible flow
Incompressible fluids
Nonlinearity
Perturbation
Physics
Physics and Astronomy
Pressure effects
Pressure pulses
Quantum Optics
Thermoacoustic Generation
Thermoacoustics
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Summary:—Influence of nonlinear hydrodynamic effects on formation of pressure pulses investigated in condensed media under pulsed actions leading to fast local variation in their density. In contrast to the ordinary thermoacoustic mechanism where density variation is caused by absorption of the incident radiation energy, models with the given space–time perturbation of density in an incompressible fluid are considered. It is shown how hydrodynamic nonlinearities give rise to transformation of a pressure pulse generated at different perturbation amplitudes and durations.
ISSN:1541-308X
1934-807X
DOI:10.3103/S1541308X24700377