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Modeling of Spherical Gas Bubble Oscillation in Acoustic Pressure Field

In English

Författare

Summary, in English

Different applications of high power ultrasound in industry and medical applications are based on the propagation and collapse of acoustic cavitation bubbles. This paper presents an enhanced numerical model and simulated results of formation and collapse of a single bubble in a liquid for two cases: bubble with uniform pressure and a bubble with variable pressure inside. For the two cases, both heat transfer inside the bubble and heat transfer to the surrounding liquid are taken into account. Various fundamental properties of oscillating bubbles in ultrasonic acoustic field, such as pressure, temperature and velocity fields inside the bubble under the influence of time-dependent acoustic pressure, have been investigated and the results show that neglecting the pressure gradient inside the bubble affects considerably the bubble dynamics.

Avdelning/ar

Publiceringsår

2013

Språk

Engelska

Publikation/Tidskrift/Serie

Proceedings Of The 8th International Conference on Multiphase Flow, 2013

Dokumenttyp

Konferensbidrag

Ämne

  • Energy Engineering

Conference name

8th International Conference on Multiphase Flow, ICMF 2013

Conference date

2013-05-26 - 2013-05-31

Status

Published

ISBN/ISSN/Övrigt

  • ICMF2013-224