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Volume 27 Issue 6
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2019  >  27(6): 664-672
LIU Shi-cong, WANG Qiu-sheng, LOU Hao-ran. Effects of Charge Depth and Air Domain Size on Underwater Explosion[J]. Journal of Unmanned Undersea Systems, 2019, 27(6): 664-672. doi: 10.11993/j.issn.2096-3920.2019.06.010
Citation: LIU Shi-cong, WANG Qiu-sheng, LOU Hao-ran. Effects of Charge Depth and Air Domain Size on Underwater Explosion[J]. Journal of Unmanned Undersea Systems, 2019, 27(6): 664-672. doi: 10.11993/j.issn.2096-3920.2019.06.010
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Effects of Charge Depth and Air Domain Size on Underwater Explosion

doi: 10.11993/j.issn.2096-3920.2019.06.010

  • College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China

  • Received Date: 2019-04-12
  • Rev Recd Date: 2019-05-16
  • Publish Date: 2019-12-31
    Abstract
  • In underwater explosion test, it is difficult to carry out research on the charge depth and the air domain size which affects the accuracy of numerical calculation. In this paper, based on the underwater explosion test of centrifuge, underwater explosion of spherical explosive under super-gravity field is simulated using two-dimensional and three-dimensional models, and the simulation results are compared with the test data to verify the rationality of the two models. Then, different charge depth and air domain size are added to the two models to analyze the effects of the two factors on simulation results of underwater explosion shock wave and bubble pulsation. The simulation results show that the greater the charge depth, the larger the shock wave peak values at the same distance from the center of the explosive, but the increase rate of the peak value with the charge depth is small; and the air domain size has little effect on numerical results of the underwater explosion bubble pulsation.

     

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