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Volume 25 Issue 新刊2
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2017  >  25(新刊2): 167-174
ZHOU Wei, WENG Chun-sheng. Numerical Simulation of the Underwater Flow Field Induced by Detonation Wave and Jet from Pulse Detonation Engine Outlet[J]. Journal of Unmanned Undersea Systems, 2017, 25(新刊2): 167-174. doi: 10.11993/j.issn.2096-3920.2017.02.004
Citation: ZHOU Wei, WENG Chun-sheng. Numerical Simulation of the Underwater Flow Field Induced by Detonation Wave and Jet from Pulse Detonation Engine Outlet[J]. Journal of Unmanned Undersea Systems, 2017, 25(新刊2): 167-174. doi: 10.11993/j.issn.2096-3920.2017.02.004
shu

Numerical Simulation of the Underwater Flow Field Induced by Detonation Wave and Jet from Pulse Detonation Engine Outlet

doi: 10.11993/j.issn.2096-3920.2017.02.004

  • National Key Lab of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China

  • Received Date: 2017-03-23
  • Rev Recd Date: 2017-04-20
  • Publish Date: 2017-06-20
    Abstract
  • To reveal the complex flow field characteristics after underwater detonation of the pulse detonation engine (PDE), a theoretical model of multi-phase detonation out of PDE tube was established following the principle of Mixture multiphase flow model. The Simple algorithm was used to simulate the process of gas injecting into the flow field. The formation and development of bubbles and the characteristics of initial flow field were investigated. The phenomena of neck shrinkage and reflow during jet injection were analyzed. And the distribution and variation of pressure and velocity in the flow field were discussed. Numerical simulation shows that underwater detonation waves make the flow field produce a strong blending effect with some complex shock structures, and the jet in the water produces bulging and necking phenomena. This study may provide theoretical guidance for performance research of underwater PDE.

     

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