降雨条件下飞机尾涡演化数值模拟研究

Jinxin Zhou, Yingchun Chen, Dong Li, Zeyu Zhang, Weijun Pan

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

摘要

The interaction between rainfall and aircraft wake vortices changes their dynamic characteristics, and the dynamic evolution of wake vortices, which has an important impact on the safety of wake encounters. Aiming at the interaction between wake vortices and rainfall, this study investigates the evolution characteristics of wake vortices in rainy conditions based on the Euler-Euler multiphase flow model. For the air phase simulation in the multiphase flow model, the large eddy simulation turbulence model is used. The dynamic transport of rain phase is controlled by two scalar equations. The two phases are coupled through the momentum source term to realize the energy transfer. The influence of rainfall rate on the evolution characteristics of wake vortices, such as circulation, vorticity, velocity distribution near the vortex core and sinking velocity, is analyzed. The results show that rainfall accelerates the decay of the circulation, reduces the maximum vorticity of the vortex core, smooths the velocity distribution, and affects the descent process of wake vortices. In addition, the presence of wake vortices also affects the trajectory and concentration distribution of rain.

投稿的翻译标题Numerical Simulation of Aircraft Wake Vortices in Rainy Conditions
源语言繁体中文
页(从-至)320-328
页数9
期刊Nanjing Hangkong Hangtian Daxue Xuebao/Journal of Nanjing University of Aeronautics and Astronautics
53
2
DOI
出版状态已出版 - 4月 2021

关键词

  • Aircraft wake vortex
  • Evolution of wake vortices
  • Multiphase flow
  • Numerical simulation
  • Rainy condition

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