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。提出了进气道吸水特性分析的两种方法：类比法和数值模拟法。以某国产运输机为例，以机轮溅水的典型初始参数为输入，运用上述两种方法，对该飞机的进气道吸水特性进行分析。分析结果表明：该飞机在不同的滑跑速度以及典型的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；机轮溅水被内侧短舱进气道吸入的条件是侧向溅水初始速度达到69m/s以上，同时法向溅水初始速度至少达到40m/s以上。
When an airplane passes through water standing on runways and taxiways, the water ingestion from wheel spray is a very complex process. Two methods were proposed for analysis the characteristic of engine water ingestion from wheel spray: analogy and numerical simulation. These two methods were conducted to analyze the water ingestion characteristics of engine inlet as the airplane passes through water standing by different velocity that associate with velocity of water from wheel spray, typical conditions includes different taxied velocity and water spay initial parameters.The results illustrate that inlet would not suck spray water and demonstrate its agreement to the regulation. water from wheel spray was ingested by inlet engine as Vy increases over 69m/s as well as Vz increases over 40m/s.
[1] Santa I. the Effect of Water Ingestion on the Operation of the Gas Turbine Engine. ICAS 2000 Congress,524.1-9.
[2] AC 20-124,water ingestion testing for turbine powered airplanes,2003.
[3] AC 25-7, Flight test guide for certification of transport category airplanes,1998.
[4] Jain S. Three-Dimensional Simulation of Turbulent Particle Dispersion PhD thesis, University of Utah, Utah, 1995.
[5] Haider A, Levenspiel O. Drag Coefficient and Terminal Velocity of Spherical and Nonspherical Particles. Powder Technology, 1989(58) : 63-70.
[6] O'Rourke P J, Amsden A A. The TAB Method for Numerical Calculation of Spray Droplet Breakup. SAE Technical Paper 872089, SAE, 1987.
[7] Liu A B, Mather D, Reitz R D. Modeling the Effects of Drop Drag and Breakup on Fuel Sprays. SAE Technical Paper 930072,SAE, 1993.
[8] 中国民用航空总局.CCAR-33-R1中国民用航空总局关于修订《航空发动机适航标准》的决定.2002: 12-16.
[9]D.C.Justin and N.S.Mark.Wheel Mounted Water Spray Deflector. United States Patent, NO.US7,118,067B2, 2003.
[10] 张岳青等，飞机轮胎溅水计算方法及翻边轮胎挡水原理分析，科学技术工程，VOL.14NO.6,2014.2 P54-59.
[11] 王传煌，崔健勇. 民用飞机的起落架溅水试验. 飞行试验，( 2) : 36—39; 1992.
[12] Barrett Ｒ V. Ｒesearch into slush drag，wheel spray and aquaplaning at bristol university using small pneumatic tyres. Aeronautical Engineering，University of Bristol，1971.
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