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首页> 外文期刊>The Aeronautical Journal >In-flight Ice formation simulation on finite wings and air intakes
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In-flight Ice formation simulation on finite wings and air intakes

机译：有限机翼和进气口的飞行中冰形成模拟

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In the present article, in-flight ice formation on finite wings and air intakes of low-speed aircraft are numerically studied. The approach to the problem involves calculation of the velocity field using a three-dimensional panel method. Using the calculated velocity field, the droplet trajectories and droplet impact locations are computed yielding the droplet collection efficiency distribution. In the next step, convective heat transfer coefficient distributions around the geometries are calculated using a two-dimensional Integral Boundary-Layer Method, which takes surface roughness due to ice accretion into account. A thermodynamic analysis employing the Extended Messinger Method yields the ice growth rates. Integration of these rates over time yields the ice shapes, hence the modified geometry. Predicted ice shapes are compared with experimental shapes reported in the literature and good agreement is observed. Ice shapes around vastly varying geometries including complex shapes are successfully computed. As such, the developed tool may be used for academical purposes or for airworthiness certification efforts.
机译：在本文中，对低速飞机有限机翼上的飞行中的冰形成和进气口进行了数值研究。解决该问题的方法涉及使用三维面板方法计算速度场。使用计算出的速度场，可以计算出液滴轨迹和液滴撞击位置，从而得出液滴收集效率分布。下一步，使用二维积分边界层方法计算几何周围的对流传热系数分布，该方法考虑了因积冰引起的表面粗糙度。使用扩展梅辛格方法的热力学分析得出冰的生长速率。这些速率随时间的积分得出冰的形状，从而改变了几何形状。将预测的冰块形状与文献中报道的实验形状进行比较，并观察到很好的一致性。成功地计算了包括复杂形状在内的各种几何形状周围的冰形状。这样，开发的工具可以用于学术目的或进行适航性认证工作。

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