上海交通大学学报(自然版) ›› 2017, Vol. 51 ›› Issue (12): 1488-1492.doi: 10.16183/j.cnki.jsjtu.2017.12.012

• 学报(中文) • 上一篇    下一篇

空化器直径对超空泡航行器空泡性能的影响

李懿霖,宋保维   

  1. 西北工业大学 航海学院, 西安 710072
  • 出版日期:2017-11-30 发布日期:2017-11-30

Influence of the Cavitator Diameter on the Performance of a Supercavitating Underwater Vehicle

LI Yilin,SONG Baowei   

  1. School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China
  • Online:2017-11-30 Published:2017-11-30

摘要: 为探索空化器直径对超空泡航行器受力性能和空泡性能的影响,针对具体超空泡航行器模型,建立计算流体力学(CFD)模拟数学模型,并进行了模拟分析.分析结果表明:航行器阻力系数随着空化数的增加,先缓慢线性增加到临界空化数,随后快速非线性增加;空化器直径越大,全空化状态下航行器的阻力系数、临界空化数和航行器在大空化数下的阻力系数越大,并且航行器产生空泡的能力越强.

关键词: 超空泡, 空化器, 直径, 计算流体力学

Abstract: Based on the Reynolds Averaged Navier-Stokes (RANS) equations, two-dimensional computational fluid dynamics (CFD) simulations are performed to investigate the influence of the cavitator diameter on the hydrodynamic forces and cavitation bubble of the supercavitating underwater vehicle. Results show that the drag of the underwater vehicle increases linearly with the increase of the cavitation number until the critical value, and then grows fast and nonlinearly. The increase of the cavitator diameter leads to an increase of drag for large cavitation numbers, and it also increases the critical cavitation number.

Key words: supercavitating, cavitator, diameter, computational fluid dynamics (CFD)

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