当飞机在积水跑道上起飞着陆滑跑时，由于起落架机轮溅水引起的进气道吸水问题是非常复杂的。提出了分析机轮溅水轨迹形态及对进气道影响的两种方法：类比法和数值模拟法。以机轮溅水的典型初始参数为输入，运用上述两种方法，对某国产运输机A的进气道吸水特性进行分析，为其适航符合性提供依据。分析结果表明：该飞机在研究范围内的各个典型溅水初始参数条件下，进气道均处于起落架机轮的溅水覆盖区域以外，符合适航条例相关要求；数值模拟结果给出了典型参数下机轮溅水被内侧短舱进气道吸入的临界条件：侧向溅水初始速度达到69 m/s以上，同时垂向溅水初始速度至少达到40 m/s以上。
When an airplane passes through the water standing on runways and taxiways, the water ingestion from wheel spray is a very complex process. To analyze the characteristic of water spray and its effect on engine ingestion, two methods are proposed:analogy and numerical simulation. With the input of wheel spray typical initial parameters, the two methods are applied to analyze the water ingestion characteristics of engine inlet of domestic transport A, which could be provided as airworthiness compliance evidence. The results illustrate that the inlet would not suck spray water and demonstrate its agreement to the regulation. Numerical simulation result gives the boundary condition when the water from wheel spray is ingested by the inlet engine:side splash velocity increases to over 69 m/s, and vertical splash velocity also increases to over 40 m/s.
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