Numerical study of low-frequency sound beams
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F12%3A00198967" target="_blank" >RIV/68407700:21230/12:00198967 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1109/ULTSYM.2011.0538" target="_blank" >http://dx.doi.org/10.1109/ULTSYM.2011.0538</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/ULTSYM.2011.0538" target="_blank" >10.1109/ULTSYM.2011.0538</a>
Alternative languages
Result language
angličtina
Original language name
Numerical study of low-frequency sound beams
Original language description
This paper is concerned with study of low-frequency sound beams generated as difference-frequency secondary field in parametric array. As model equations for theoretical investigation, KZK equation and Higher-order parabolic equation (HOPE) [Kamakura, T., Masahiko, A., Kenicii, A, Acoust. Sci. & Tech. 25, 2, (2004)] were used. Efficient numerical algorithm capable of massive parallelization was proposed for numerical integration of the model equations. Numerical results obtained using KZK equation and HOPE show that the KZK equation overestimates amplitude of the difference-frequency secondary wave in the near-field of the primary wave at the axis of symmetry. Both the equations provide the same results in the far-field and at the off-axis for both low- and high-frequency secondary fields.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA202%2F09%2F1509" target="_blank" >GA202/09/1509: Generation of directional low-frequency acoustic beams</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
2011 IEEE International Ultrasonics Symposium (IUS)
ISBN
978-1-4577-1252-4
ISSN
1948-5719
e-ISSN
—
Number of pages
4
Pages from-to
2169-2172
Publisher name
IEEE
Place of publication
New York
Event location
Orlando
Event date
Oct 18, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000309918400518