Assessment of Acoustic Iterative Inverse Method for Bubble Sizing to Experimental Data

  • Choi, Bok-Kyoung (Marine Environment Research Department, KORDI) ;
  • Kim, Bong-Chae (Marine Environment Research Department, KORDI) ;
  • Kim, Byoung-Nam (BK21 Physics Research Division and Institute of Basic Science, Department of Physics, SungKyunKwan University) ;
  • Yoon, Suk-Wang (BK21 Physics Research Division and Institute of Basic Science, Department of Physics, SungKyunKwan University)
  • 발행 : 2006.12.31

초록

Comparative study was carried out for an acoustic iterative inverse method to estimate bubble size distributions in water. Conventional bubble sizing methods consider only sound attenuation for sizing. Choi and Yoon [IEEE, 26(1), 125-130 (2001)] reported an acoustic iterative inverse method, which extracts the sound speed component from the measured sound attenuation. It can more accurately estimate the bubble size distributions in water than do the conventional methods. The estimation results of acoustic iterative inverse method were compared with other experimental data. The experimental data show good agreement with the estimation from the acoustic iterative inverse method. This iterative technique can be utilized for bubble sizing in the ocean.

키워드

참고문헌

  1. Choi, B.K. 1996. Acoustic bubble sizing considering the sound speed variation in bubbly water. Ph.D. thesis, Sung Kyun Kwan Univ., Seoul. Korea
  2. Choi, B.K., H.R. Lee, and S.W. Yoon. 1994. Coherent acoustic bubble sizing in the ocean. J. Acoust. Soc. Am., 96, 3235
  3. Choi, B.K. and S.W. Yoon. 1995. Acoustic bubble sizing considering the sound speed variation in bubbly water. p. 25- 32. In: Proceedings of 10th Underwater Acoustics Symposium, Acoustical Society of Korea. (In Korean)
  4. Choi, B.K. and S.W. Yoon. 2001. Acoustic bubble counting technique using sound speed extracted from sound attenuation. IEEE J. Oceanic Eng., 26(1), 125-130 https://doi.org/10.1109/48.917945
  5. Clay, C.S. and H. Medwin. 1977. Acoustical Oceanography: Principle and applications. John Wiley & Sons, New York. p. 178-215
  6. Commander, K.W. and E. Moritz. 1989. Off-resonance contributions to acoustical bubble spectra. J. Acoust. Soc. Am., 85, 2665-2669 https://doi.org/10.1121/1.397763
  7. Commander, K.W. and R.J. McDonald. 1991. Finite-element solution of the inverse problem in bubble swarm acoustics. J. Acoust. Soc. Am., 89, 592-597 https://doi.org/10.1121/1.400671
  8. Duraiswami, R., S. Prabhukumar, and G.L. Chahine. 1998. Bubble counting using an inverse acoustic scattering method. J. Acoust. Soc. Am., 104(5), 2699-2717 https://doi.org/10.1121/1.423854
  9. Medwin, H. 1970. In situ acoustic measurements of bubble populations in coastal ocean waters. J. Geophys. Res., 75, 599-611 https://doi.org/10.1029/JC075i003p00599
  10. Silberman, E. 1957. Sound velocity and attenuation in bubbly mixtures measured in standing wave tubes. J. Acoust. Soc. Am., 29(8), 925-933 https://doi.org/10.1121/1.1909101
  11. Strang, G. 1988. Linear Algebra and its Application. Appendix A, 442-452. Academic Press, New York
  12. Su, M.Y., D. Todoroff, and J. Cartmill. 1994. Laboratory comparisons of acoustic and optical sensors for microbubble measurement. J. Atmos. Ocean. Tech., 11, 170-181 https://doi.org/10.1175/1520-0426(1994)011<0170:LCOAAO>2.0.CO;2
  13. Thorpe, S.A. 1984. The effect of Langmuir circulation on the distribution of submerged bubbles caused by breaking wind waves. J. Fluid Mech., 142, 151-170 https://doi.org/10.1017/S0022112084001038
  14. Thorpe, S.A., P. Bowyer, and D.K. Woolf. 1992. Some factors affecting the size distributions of oceanic bubbles. J. Phys. Oceanogr., 22, 382-389 https://doi.org/10.1175/1520-0485(1992)022<0382:SFATSD>2.0.CO;2
  15. Vagle, S. and D.M. Farmer. 1992. The measurement of bubblesize distributions by acoustical backscatter. J. Atmos. Ocean. Tech., 9, 630-644 https://doi.org/10.1175/1520-0426(1992)009<0630:TMOBSD>2.0.CO;2
  16. Yoon, S.W. and B.K. Choi. 1994. Active and Passive Acoustic Roles of Bubbles in the Ocean. p. 151-160. In: Bubble Dynamics and Interface Phenomena. Ed. by J.R. Blake. Kluwer Academic, Dordrecht