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Volume 22 Issue 3
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2014  >  22(3): 161-164
CHENG Wen-xin, CAI Wei-jun, YANG Chun-wu. Simulation on Small-Angle Water Entry Process of Torpedo[J]. Journal of Unmanned Undersea Systems, 2014, 22(3): 161-164. doi: 10.11993/j.issn.1673-1948.2014.03.001
Citation: CHENG Wen-xin, CAI Wei-jun, YANG Chun-wu. Simulation on Small-Angle Water Entry Process of Torpedo[J]. Journal of Unmanned Undersea Systems, 2014, 22(3): 161-164. doi: 10.11993/j.issn.1673-1948.2014.03.001
shu

Simulation on Small-Angle Water Entry Process of Torpedo

doi: 10.11993/j.issn.1673-1948.2014.03.001
  • 1.

    Naval Armament Department, Beijing 100073, China

  • 2.

    The 705 Research Institute, China Shipbuilding Industry Cor-poration, Xi′an 710075, China

  • Received Date: 2014-01-23
  • Rev Recd Date: 2014-02-26
  • Publish Date: 2014-06-20
    Abstract
  • The multiphase mixture model and the dynamic mesh method are used to analyze the forming process of cav-ity in torpedo water entry with small angle, and the characteristics of interaction between torpedo shape and water entry cavity wall to achieve the change rules of pitch torque and torque action point for different water entry angle and water entry angle of attack. Simulations show that reducing angle of attack or delaying ignition can avoid such abnormal phe-nomena as engine′s stalling and torpedo′s broaching, and pump jet configuration facilitates stable water entry process of a torpedo.

     

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