Self-refraction of impulse and quasi-stationary acoustic beams containing shock fronts in a Newtonian fluid

• Autorzy: Perelomova Anna

Identyfikatory

DOI

10.34808/tq2020/24.1/b

• Języki publikacji: EN

Abstrakty

EN

The self-refraction of some beams in a Newtonian fluid is theoretically studied. Asingle pulse that takes the shape of an isosceles triangle at a transducer and a solitary shockwave are considered as examples. The novelty lies in the consideration of a quasi-stationaryshock wave (with positive or negative pressure) and negative triangular pulses. We concludethat waveforms with negative excess pressure undergo self-focusing, in contrast to those withpositive excess pressure. The difference in self-refraction of quasi-stationary and impulse beamsis revealed by means of numerical modeling.

Słowa kluczowe

EN

self-refraction of acoustic beam; self-focusing of sound; self-action of beams with shock fronts

PL

samorefrakcja wiązki akustycznej; samoskupianie się dźwięku; samoczynność belek; fronty uderzeniowe

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2020
• Tom: Vol. 24, No 1
• Strony: 17--28
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Perelomova Anna

• Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Gabriela Narutowicza 11/12, 80–233 Gdansk, Poland

Bibliografia

• [1] Rudenko O V and Soluyan O V 1977 Theoretical foundations of nonlinear acoustic, Plenum, New York
• [2] Fridman V E 1982 Akust. Zh. 28 551
• [3] Musatov A G, Rudenko O V and Sapozhnikov O A 1992 Akust. Zh. 38 502
• [4] Rudenko O A 1995 Usp. Fiz. Nauk.165 1011
• [5] Rudenko O V and Sapozhnikov O A 2004 Physics-Uspekhi 47 (9)907
• [6] Rudenko O V, Sagatov M M and Sapozhnikov O A, 1990 Sov. Phys. JETP 71 449
• [7] Bakhvalov N S, Zhileikin YA M and Zabolotskaya E A 1987 Nonlinear theory of sound beams, American Institute of Physics New York
• [8] Hamilton M F, Khokhlova V A and Rudenko O V 1997 J. Acoust. Soc. Am.101(3)1298
• [9] Rudenko O V 2010 Acoustical Physics 56(4)457
• [10] Sapozhnikov O A 1991 Akust. Zh.37 760
• [11] Askaryan G A 1966 JETP Lett. 4(4)99
• [12] Perelomova A 2014 Canadian Journal of Physics 92(5)401
• [13] Perelomova A 2014Applied Mathematical Modelling 38 5684

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).