An algebraic correction for the Westervelt equation to account for the local nonlinear effects in parametric acoustic array
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00358569" target="_blank" >RIV/68407700:21230/22:00358569 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1121/10.0011747" target="_blank" >https://doi.org/10.1121/10.0011747</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1121/10.0011747" target="_blank" >10.1121/10.0011747</a>
Alternative languages
Result language
angličtina
Original language name
An algebraic correction for the Westervelt equation to account for the local nonlinear effects in parametric acoustic array
Original language description
This work presents a simple computational approach for the calculation of parametrically generated low-frequency sound fields. The Westervelt wave equation is employed as a model equation that accounts for the wave diffraction, attenuation, and nonlinearity. As it is known that the Westervelt equation captures the cumulative nonlinear effects correctly and not the local ones, an algebraic correction is proposed, which includes the local nonlinear effects in the solution of the Westervelt equation. This way, existing computational approaches for the Westervelt equation can be used even in situations where the generated acoustic field differs significantly from the plane progressive waves, such as in the near-field, and where the local effects manifest themselves strongly. The proposed approach is demonstrated and validated on an example of the parametric radiation from a baffled circular piston.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10307 - Acoustics
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
ISSN
0001-4966
e-ISSN
1520-8524
Volume of the periodical
151
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
4046-4052
UT code for WoS article
000811844100005
EID of the result in the Scopus database
2-s2.0-85132302723