The dynamic characteristics of a bubble initially very close to a rigid wall, or with a very narrow gap, are different from those of a bubble away from the wall. Especially at the contraction stage, a high-speed jet pointing toward the wall will be generated and will impact the rigid surface directly, which could cause more severe damage to the structure. Based on the velocity potential theory and boundary element method (BEM), the present paper aims to overcome the numerical difficulty and simulate the bubble impact on a solid wall for the axisymmetric case. The convergence study has been undertaken to verify the developed numerical method and the computation code. Extensive experiments are conducted. Case studies are made using both experimental data and numerical results. The effects of dimensionless distance on the bubble dynamics are investigated.
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March 2015
Research-Article
Numerical and Experimental Study of Bubble Impact on a Solid Wall
B. Y. Ni,
B. Y. Ni
College of Shipbuilding Engineering,
Harbin Engineering University
,Harbin 150001
, China
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A. M. Zhang,
A. M. Zhang
College of Shipbuilding Engineering,
Harbin Engineering University
,Harbin 150001
, China
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G. X. Wu
G. X. Wu
1
Department of Mechanical Engineering,
e-mail: g.wu@ucl.ac.uk
University College London
,London WC1E 7JE
, UK
e-mail: g.wu@ucl.ac.uk
1Corresponding author.
Search for other works by this author on:
B. Y. Ni
College of Shipbuilding Engineering,
Harbin Engineering University
,Harbin 150001
, China
A. M. Zhang
College of Shipbuilding Engineering,
Harbin Engineering University
,Harbin 150001
, China
G. X. Wu
Department of Mechanical Engineering,
e-mail: g.wu@ucl.ac.uk
University College London
,London WC1E 7JE
, UK
e-mail: g.wu@ucl.ac.uk
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received April 21, 2013; final manuscript received October 10, 2014; published online December 3, 2014. Editor: Malcolm J. Andrews.
J. Fluids Eng. Mar 2015, 137(3): 031206 (16 pages)
Published Online: March 1, 2015
Article history
Received:
April 21, 2013
Revision Received:
October 10, 2014
Online:
December 3, 2014
Citation
Ni, B. Y., Zhang, A. M., and Wu, G. X. (March 1, 2015). "Numerical and Experimental Study of Bubble Impact on a Solid Wall." ASME. J. Fluids Eng. March 2015; 137(3): 031206. https://doi.org/10.1115/1.4028798
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