潜射航行体肩部通气流体动力特性数值研究

Shan Gao, Yao Shi, Guang Pan

科研成果: 期刊稿件文章同行评审

8 引用 (Scopus)

摘要

In order to study the influence of the ventilating cavitation flow at the shoulder of a submerged-launched vehicle on the surface hydrodynamic characteristics, a three-dimensional potential model for the shoulder ventilation of the vehicle was established based on the homogeneous multiphase flow theory, standard RNG k-ε model, Singhal cavitation model and overlapping grid technology, and the numerical simulation of the unsteady evolution process of the ventilated cavitation flow was carried out, and the cavitation flow morphology evolution, surface pressure distribution and resistance characteristics under different ventilation rates were compared. The results showed that the thickness and length of the ventilated cavitation flow in the early stage of fusion continue increased with the increasing of ventilation volume, and its thickness and length changed slightly in the later stage; when the exhaust position did not change and the ventilation volume was within a certain range, the differential pressure resistance coefficient and viscous resistance coefficient decreased with the increasing of internal pressure of the ventilated cavity.

投稿的翻译标题Numerical investigation on fluid dynamic characteristics around shoulder ventilation of submarine-launched vehicle
源语言繁体中文
页(从-至)463-470
页数8
期刊Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
39
3
DOI
出版状态已出版 - 6月 2021

关键词

  • Cavitation flow
  • Hydrodynamics
  • Submarine-launched vehicle
  • Ventilation mass flow

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