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<p>To investigate the effects of rain/snow/hail particles on aircraft surfaces, this study analyzes particle trajectory deflection through hypersonic wedge shock layers and associated erosion distribution characteristics. We established governing equations via classical shock theory and introduced a Mach-adaptive drag coefficient model validated by CFD.The framework reveals parabolic post-shock deflection, exponentially decaying surface distributions, and monotonically decreasing impact angles/velocities along the flow direction, thereby providing a theoretical tool for leading-edge erosion-resistant design and lifespan prediction.</p>

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Deflection Characteristics of Particles Traversing Oblique Shock Waves

  • 期刊论文

  • 发表日期：

    2025年11月29日

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  • Jiahui Liu,
  • Zhenjun Zhao,
  • Wenhui Yan,
  • Zonghan Yu

摘要

To investigate the effects of rain/snow/hail particles on aircraft surfaces, this study analyzes particle trajectory deflection through hypersonic wedge shock layers and associated erosion distribution characteristics. We established governing equations via classical shock theory and introduced a Mach-adaptive drag coefficient model validated by CFD.The framework reveals parabolic post-shock deflection, exponentially decaying surface distributions, and monotonically decreasing impact angles/velocities along the flow direction, thereby providing a theoretical tool for leading-edge erosion-resistant design and lifespan prediction.