Shock propagation in polydisperse bubbly liquids

Keita Ando, Tim Colonius, Christopher E. Brennen

研究成果: Chapter

1 被引用数 (Scopus)

抄録

We investigate the shock dynamics of liquid flows containing small gas bubbles with numerical simulations based on a continuum bubbly flow model. Particular attention is devoted to the effects of distributed bubble sizes and gas-phase nonlinearity on shock dynamics. Ensemble-averaged conservation laws for polydisperse bubbly flows are closed with a Rayleigh-Plesset-type model for single bubble dynamics. Numerical simulations of one-dimensional shock propagation reveal that phase cancellations in the oscillations of different-sized bubbles can lead to an apparent damping of the averaged shock dynamics. Experimentally, we study the propagation of waves in a deformable tube filled with a bubbly liquid. The model is extended to quasi-one-dimensional cases. This leads to steady shock relations that account for the compressibility associated with tube deformation, bubbles and host liquid. A comparison between the theory and the water-hammer experiments suggests that the gas-phase nonlinearity plays an essential role in the propagation of shocks.

本文言語English
ホスト出版物のタイトルBubble Dynamics and Shock Waves
出版社Springer Berlin Heidelberg
ページ141-175
ページ数35
ISBN(電子版)9783642342974
ISBN(印刷版)9783642342967
DOI
出版ステータスPublished - 2013 1 1

ASJC Scopus subject areas

  • 工学(全般)

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