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Volume 22 Issue 2
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2014  >  22(2): 081-86
SUN Shi-ming, YAN Kai, CHEN Wei-zheng. Numerical Simulation of Ventilation Law for Supercavitating Vehicle[J]. Journal of Unmanned Undersea Systems, 2014, 22(2): 081-86. doi: 10.11993/j.issn.1673-1948.2014.02.001
Citation: SUN Shi-ming, YAN Kai, CHEN Wei-zheng. Numerical Simulation of Ventilation Law for Supercavitating Vehicle[J]. Journal of Unmanned Undersea Systems, 2014, 22(2): 081-86. doi: 10.11993/j.issn.1673-1948.2014.02.001
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Numerical Simulation of Ventilation Law for Supercavitating Vehicle

doi: 10.11993/j.issn.1673-1948.2014.02.001

  • National Key Lab of Science and Technology on Hydrodynamics, China Ship Scientific Research Center, Wuxi 214082, China

  • Received Date: 2014-01-01
  • Rev Recd Date: 2014-01-21
  • Publish Date: 2014-04-20
    Abstract
  • To understand the ventilation law of a supercavitating vehicle in high Froude number flows, RANS equations and the volume of fluid (VOF) multiphase flow model are employed to simulate the ventilation law of a supercavitating vehicle in the case of small cavitation number. The distributions of velocity and pressure in ventilated supercavitation flow are described. The cavity shapes and the pressure along the cavity wall with different ventilation rates are compared, respectively. The ventilation laws at different natural cavitation number and Reynolds number are obtained, and simula-tion results agree well with experimental phenomena. Based on the calculation results and the dimension analysis, a new formula considering the influence of natural cavitation number is proposed to calculate the ventilation coefficient at high Froude number.

     

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    • References(7)
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