Abstract
The bubble motion in a compressible liquid under a pressure pulsing condition was studied numerically by solving the conservation equations of mass and momentum. The bubble deformation was computed by a level-set method, which was modified to include the compressibility effects of bubble and liquid. The numerical results demonstrate that the presence of a bubble can significantly amplify the wall pressure near the bubble, and the wall also considerably increases the bubble pressure. The effects of surface tension, viscosity and the magnitude of pressure pulse on the bubble motion were quantified.
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Recommended by Associate Editor Hyoung-gwon Choi
Sungwook Cho received his B.S. in Mechanical Engineering from Sogang University in 2017. He is currently a graduate student of Mechanical Engineering at Sogang University, Korea. Mr. Cho’s research interests are in the area of multiphase flow and heat transfer.
Gihun Son received his B.S. and M.S. in Mechanical Engineering from Seoul National University in 1986 and 1988, respectively, and his Ph.D. in Mechanical Engineering from UCLA in 1996. Dr. Son is currently a Professor of Mechanical Engineering at Sogang University, Korea. His research interests are in the areas of multiphase flow, heat transfer, and power plant simulation.
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Cho, S., Son, G. & Kim, S. Numerical analysis of bubble motion under a pressure pulsing condition. J Mech Sci Technol 31, 5897–5904 (2017). https://doi.org/10.1007/s12206-017-1133-x
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DOI: https://doi.org/10.1007/s12206-017-1133-x