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Volume 28 Issue 4
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2020  >  28(4): 382-388
CHENG Dong, CHEN Fei-yu, LU Bing-ju, QIN Li-ping. Effects of Gas Jet at Tube Outlet on Load Reduction of Undersea Vehicle[J]. Journal of Unmanned Undersea Systems, 2020, 28(4): 382-388. doi: 10.11993/j.issn.2096-3920.2020.04.005
Citation: CHENG Dong, CHEN Fei-yu, LU Bing-ju, QIN Li-ping. Effects of Gas Jet at Tube Outlet on Load Reduction of Undersea Vehicle[J]. Journal of Unmanned Undersea Systems, 2020, 28(4): 382-388. doi: 10.11993/j.issn.2096-3920.2020.04.005
shu

Effects of Gas Jet at Tube Outlet on Load Reduction of Undersea Vehicle

doi: 10.11993/j.issn.2096-3920.2020.04.005
  • 1.

    The 713 Research Institute, China Shipbuilding Industry Corporation, Zhengzhou 450015, China

  • 2.

    Henan Key Laboratory of Underwater Intelligent Equipment, Zhengzhou 450015, China

  • Publish Date: 2020-08-31
    Abstract
  • The stable gas curtain formed by gas jet at the launch tube outlet is conducive to the reduction of outlet loads during launch of undersea vehicle and to the better trajectory environment. In this paper, an unsteady multiphase flow field model is established to analyze the effects of the flow rate of gas jet at the tube outlet and the early jet on the outlet load of undersea vehicle, the distribution law of the gas jet at the tube outlet, and the surface pressure and bending moment of the vehicle. The outlet load reduction effectiveness under different gas flow rate, position of nozzles and early jet are compared. The results show that the outlet loads can be effectively reduced by the gas curtain, and the measures such as increasing the flow rate of gas jet, uniformly laying the nozzles and early jet are beneficial to the load reduction

     

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