Abstract
ABSTRACTTwo models of bubble dynamics with constant vapour pressure and vapour content were newly developed. The mass flux of water vapour at bubble wall was simplified to facilitate the analysis. Based on these two models and the approximation of the mass flux, more simplified equations corresponding to the models were deduced from dynamic equation of bubble corrected by Sochard et al. MATLAB and the Runge–Kutta algorithm were applied to calculate and analyse the dynamical behaviour of cavitation bubbles under an ultrasonic field. Numerical results reveal that bubbles under the constant vapour pressure model exhibit larger amplitudes and move more violently to generate acoustic cavitation effect than the constant vapour content model. Nevertheless, the kinetic characteristics of bubbles under the constant vapour content model are similar to those of bubbles without water vapour. Moreover, vapour content exerts certain influence on the maximum radius, minimum radius and collapse intensity of bubbles.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
