Impact of salinity on the underwater noise generated by small scale air entrainment events

• Autorzy: Szuszkiewicz J. , Klusek Z. , Gorska N.
• Języki publikacji: EN

Abstrakty

EN

Some part of the energy released in the wave breaking process is transformed into the energy of the noise. This sound depends on the water properties, however, there is a lack of reliable data concerning the underwater noise generated by less energetic events. The aim of this study was to understand the impact of salinity on the underwater noise produced during small scale air entrainment events, typical for low wind speed conditions. The tipping trough experiment was performed in a small tank to generate the small scale air injections. Four, linearly placed hydrophones HTI-96-MIN were used to record the acoustic noise accompanying this phenomenon. The bubble plume development, and underwater noise spectra, were compared for salty and fresh water. The potential energy of the modeled events resulted in different spectra, and salinity played an essential role in the emitted underwater noise.

Słowa kluczowe

EN

underwater noise; air entrainment; bubbles; bubble clusters

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2017
• Tom: Vol. 20
• Strony: 167--172
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Szuszkiewicz J.

• Institute of Oceanography, University of Gdańsk 81 - 378 Gdynia, str. Marszałka Piłsudskiego 46, Poland

autor

Klusek Z.

• Institute of Oceanology, Polish Academy of Science 81-712 Sopot, str. Powstańców W-wy 55, Poland

autor

Gorska N.

• Institute of Oceanography, University of Gdańsk 81 - 378 Gdynia, str. Marszałka Piłsudskiego 46, Poland

Bibliografia

• [1] J. Duncan, Spilling Breakers, Annu. Rev. Fluid Mech., Vol. 33, No. 1, pp. 519–547, 2001.
• [2] A. Babanin, Breaking and dissipation of ocean surface waves, 1st ed. Cambridge University Press, 2011.
• [3] M.-Y. Su, A. W. Green, and M. T. Bergin, Experimental Studies of Surface Wave Breaking and Air Entrainment, in Gas Transfer at Water Surfaces, W. Brutsaert and G. H. Jirka, Eds. Dordrecht: Springer Netherlands, 1984, pp. 211–219.
• [4] H. Medwin and M. M. Beaky, Bubble sources of the Knudsen sea noise spectra, J. Acoust. Soc. Am., Vol. 86, No. 3, pp. 1124–1130, 1989.
• [5] D. Stagonas, D. Warbrick, G. Muller, and D. Magagna, Surface tension effects on energy dissipation by small scale, experimental breaking waves, Coast. Eng., Vol. 58, No. 9, pp. 826–836, 2011.
• [6] M. Y. Su and J. Cartmill, Effects of salinity on breaking wave generated void fraction and bubble size spectra, in Proceedings of Air- Water Gas Transfer, Heidelberg University, 1995, pp. 305–3011.
• [7] E. S. Winkel, S. L. Ceccio, D. R. Dowling, and M. Perlin, Bubble-size distributions produced by wall injection of air into flowing freshwater, saltwater and surfactant solutions, Exp. Fluids, Vol. 37, pp. 802–810, 2004.
• [8] L. Han and Y. Yuan, Bubble size distribution in surface wave breaking entraining process, Sci. China Ser. Earth Sci., Vol. 50, No. 11, pp. 1754–1760, 2007.
• [9] A. R. Kolaini, Sound radiation by various types of laboratory breaking waves in fresh and salt water, J Acoust Soc Am, Vol. 103, No. 1, pp. 300–308, 1998.
• [10] G. J. Orris and M. Nicolas, Collective oscillations of fresh and salt water bubble plumes, J Acoust Soc Am, Vol. 107, No. 2, pp. 771–787, 2000.
• [11] D. E. Slauenwhite and B. D. Johnson, Bubble shattering: Differences in bubble formation in fresh water and seawater, J. Geophys. Res. Oceans, Vol. 104, No. C2, pp. 3265–3275, 1999.
• [12] J. Tęgowski, A laboratory study of breaking waves, Oceanologia, Vol. 43, No. 3, pp. 365–382, 2004.
• [13] C. E. Blenkinsopp and J. R. Chaplin, Void fraction measurements in breaking waves, Proc R Soc A, Vol. 463, No. 2088, pp. 3151–3170, 2007.
• [14] Z. Klusek and A. Lisimenka, Acoustic noise generation under plunging breaking waves, Oceanologia, Vol. 55, No. 4, pp. 809–836, 2013.
• [15] W. M. Carey, J. W. Fitzgerald, E. C. Monahan, and Q. Wan, Measurement of the sound produced by a tipping trough with fresh and salt water, J. Acoust. Soc. Am., Vol. 93, No. 6, pp. 3178–3192, 1993.

Uwagi

PL

Opracowanie w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).