Paper Title:
Numerical Simulation on Underwater Shock Wave Focusing
  Abstract

Shock wave focusing by an ellipsoidal reflector can produce higher pressure in the focal region. The focusing process of shock wave was studied by theory analyses and numerical results. Base on the experimental observation the shock wave source is equivalent to the explosion of an underwater explosive. A finite element model was set up to investigate the shock wave focusing behaviors. Both the pressure-time history and the peak pressure along the axial position were presented. The shock wave focusing process was shown. The interactions of waves in the focal region are shown. A modified EOS of water was applied, which can be used to analyze the negative pressure observed; the numerical results based on the modified EOS agree well with the experimental data.

  Info
Periodical
Chapter
Chapter 1: Vibration Engineering
Edited by
Paul P. Lin and Chunliang Zhang
Pages
121-126
DOI
10.4028/www.scientific.net/AMM.105-107.121
Citation
Z. F. Zhang, X. W. Zeng, Q. Y. Cai, K. F. Han, "Numerical Simulation on Underwater Shock Wave Focusing", Applied Mechanics and Materials, Vols. 105-107, pp. 121-126, 2012
Online since
September 2011
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Price
$32.00
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