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Acoustic cavitation stages

Table 1.1 The relationship between the type of cavitation bubbles and that of the cavitation noise spectrum in the parameter space shown in Fig. 1.1. Chaotic (initial transient) means nonperiodic pulsation only at the initial transient stage although the pulsation becomes periodic at the steady-state. Reprinted from Ultrasonics Sonochemistry, vol. 17, K.Yasui, T. Tuziuti, J. Lee, T. Kozuka, A. Towata, and Y. Iida, Numerical simulations of acoustic cavitation noise with the temporal fluctuation in the number of bubbles, pp. 460-472, Copyright (2010), with permission from Elsevier... Table 1.1 The relationship between the type of cavitation bubbles and that of the cavitation noise spectrum in the parameter space shown in Fig. 1.1. Chaotic (initial transient) means nonperiodic pulsation only at the initial transient stage although the pulsation becomes periodic at the steady-state. Reprinted from Ultrasonics Sonochemistry, vol. 17, K.Yasui, T. Tuziuti, J. Lee, T. Kozuka, A. Towata, and Y. Iida, Numerical simulations of acoustic cavitation noise with the temporal fluctuation in the number of bubbles, pp. 460-472, Copyright (2010), with permission from Elsevier...
Relative importance of coalescence and rectified diffusion in the bubble growth is still under debate. After acoustic cavitation is fully started, coalescence of bubbles may be the main mechanism of the bubble growth [16, 34], On the other hand, at the initial development of acoustic cavitation, rectified diffusion may be the main mechanism as the rate of coalescence is proportional to the square of the number density of bubbles which should be small at the initial stage of acoustic cavitation. Further studies are required on this subject. [Pg.7]

Acoustic cavitation can be considered to involve at least three discrete stages nucleation, bubble growth, and, under proper conditions, implosive collapse. The dynamics of cavity growth and collapse are strikingly dependent on local environment we therefore will consider separately cavitation in a homogeneous liquid and cavitation near a liquid-solid interface. [Pg.75]


See other pages where Acoustic cavitation stages is mentioned: [Pg.77]    [Pg.91]    [Pg.331]    [Pg.56]    [Pg.76]    [Pg.4]    [Pg.173]    [Pg.28]    [Pg.246]    [Pg.218]   
See also in sourсe #XX -- [ Pg.192 ]




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