Powiadomienia systemowe
- Sesja wygasła!
Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
Classical studies on the descriptions of acoustic field in an area of a near field, in accordance with the relations formulated by Kirchhoff, Huygens or Rayleigh's integral formula, are commonly known. It is also known that typical interference phenomena, such as diffraction and scattering of acoustic waves, appear in an acoustic field of the real sources as a result of mutual reactions of component waves. Today these vector effects of the acoustic wave occurring in the area of a near field can be simple measured directly with the use of a sound intensity technique. This article presents a few examples of the application of a sound intensity technique to the graphic presentation of the spatial distribution of the acoustic power flow over various geometrical shapes of structures located in a three-dimensional half space. The results of these studies contribute to the theory of sound and general knowledge about the physics of flow acoustic phenomena, especially in the near acoustic field. As a result of research, the visualization analysis of the sound intensity flux in 3D space is shown. The visualization of acoustic power flow in real-life acoustic fields can explain many particular energetic effects (scattering, vortex flow, shielding area, etc.), concerning areas where it is difficult to make numerical analysis.
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
Strony
859--870
Opis fizyczny
Bibliogr. 14 poz., rys.
Twórcy
autor
- Szczecin University of Technology Maritime Faculty of Technology Al. Piastów 41, 71-065 Szczecin, Poland
Bibliografia
- [1] DE BREE H-E. et al., Three-dimensional sound intensity measurement using microflown particle velocity sensors, MEMS'99, Orlando 1999.
- [2] BOSTÖM A., Acoustic scattering by a sound-hard rectangle, J. Acoust. Soc. Am., 90, 6, 3344--334 (1991).
- [3] CREMER L., MÜLLER H., Principles and applications of room acoustics, Applied Science, London 1982.
- [4] CRIGHTON D. G. et al., Modern methods in analytical acoustics, Springer-Verlag, London 1966.
- [5] DICKINSON R. R., A unified approach to the design of visualization software for the analysis of field problems, Proc. Threedimensional Visualization and Display Technologies, Spie 173--180, 1989.
- [6] FILIPPI P. [Ed.], Theoretical acoustics and numerical techniques, Springer-Verlag, Wien 1983.
- [7] GERALD-YAMASAKI M., Visualization of computational lfuid dynamics, Comp. Flow Dynamics. - Rev, 1995.
- [8] HAFEZ M. et al., Computational fluid dynamics review 1995, John Wiley & Sons, Chichester 1995.
- [9] KRISTENSSON G., Acoustic scattering by a soft eliptic disc, J. Sound Vib., 103, 487-498 (1989).
- [10] MORSE P. M., INGARD K. U., Theoretical acoustics, McGraw-Hill, New York 1968.
- [11] MUNSON B. R. et al., Fundamentals of fluid mechanics, Wiley and Sons, New York 1994.
- [12] WILLIAMS E. G., Fourier Acoustics - Sound radiation and nearfield holography, Academic Press, San Diego, London, New York 1999.
- [13] WEYNA S., An image of the energetic acoustic field in a parallelepipeded room models, "Acta Acustica" Inter. Journal on Acoustics, 82, 2-81 (1996).
- [14] WEYNA S., Identification of reflection and scattering effects in real acoustic flow field, Archives of Acoustics, 28, 3, 191-203 (2003).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-fb5a4881-958b-435c-8faf-354f9c758a92