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Chinese Journal of High Pressure Physics  > 2013  >  27(1): 63-68.
LI Mei, WEI Ji-Feng, WANG Shu-Shan, MA Feng. Experimental Study on Shape and Evolution of Water Column Caused by Near Surface Explosion in Deep Water Area[J]. Chinese Journal of High Pressure Physics, 2013, 27(1): 63-68. doi: 10.11858/gywlxb.2013.01.009
Citation: LI Mei, WEI Ji-Feng, WANG Shu-Shan, MA Feng. Experimental Study on Shape and Evolution of Water Column Caused by Near Surface Explosion in Deep Water Area[J]. Chinese Journal of High Pressure Physics, 2013, 27(1): 63-68. doi: 10.11858/gywlxb.2013.01.009
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Experimental Study on Shape and Evolution of Water Column Caused by Near Surface Explosion in Deep Water Area

doi: 10.11858/gywlxb.2013.01.009

  • State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

  • Received Date: 19 Sep 2011
  • Rev Recd Date: 24 Oct 2011
  • Publish Date: 15 Feb 2013
    Abstract
  • In order to investigate the shape and evolution process of water column caused by a near surface explosion in deep water situation, underwater explosion experiments with 1 kg of RDX charge at different detonation depths are carried out using a high-speed camera. The evolution characteristics and parameters of water columns including the height, width and prominent time are obtained and compared with those published by Cole, Hole and Swisdak et al. The results show that vertical ejection is the main shape of water column, and a few additional radial ejections occur when the bubble reaches the free surface at its expanding phase. The maximum height of water column fluctuates with the explosion depth, while the width of water column decreases linearly. Empirical formula of water column height by Swisdak is not suitable to near surface underwater explosion in deep water situation.

     

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