Title :
Nonmonotonic behavior of the maximum collapse pressure in a cavitation bubble
Author :
Aymé-Bellegarda, Eveline J. ; Church, Charles C.
Author_Institution :
Dept. of Electr. Eng., Rochester Univ., NY, USA
Abstract :
Calculations which are relevant to the determination of the maximum collapse pressure generated inside a microbubble as a function of peak pressure in the driving ultrasonic pulse are presented. It is found that above the threshold for transient cavitation, the maximum collapse pressure has a nonmonotonic variation. This result is explained on the basis of phase differences between the external applied acoustic pulse and the resulting bubble response.<>
Keywords :
bubbles; cavitation; ultrasonic effects; bubble response; cavitation bubble; driving ultrasonic pulse; external applied acoustic pulse; maximum collapse pressure; microbubble; nonmonotonic variation; peak pressure; phase differences; transient cavitation; Acoustic pulses; Acoustic waves; Amplitude modulation; Biophysics; Frequency; Public healthcare; Pulse compression methods; Pulse generation; Pulse width modulation; Space vector pulse width modulation;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on