Parameter Measurement Method and Physical Meteorology Simulation for Designing Anti-icing System of Aircraft
ZHENG Li1, PENG Youxin1, BU Xueqin2, FENG Kang1
1. Aviation Industry Corporation of China, Wuhan Aviation Instrument Corporation, Wuhan 430074, China;2. School of Aeronautic Science and Engineering, Beijing University, Beijing 100191, China
Abstract：The design of anti-icing system is in term of the meteorological conditions causing aircraft icing during flight. The physical simulations on meteorological conditions and standards, the surface simulation equipments and mothdologies involved in fight icing are reviewed. To meet the features of climate and types of aircraft in China, the principles to set the appropriate meteorological conditions for anti-icing system design, and experimental plans made for the typical freighter, helicopter and fighter are put forward. Combined with the domestic design and experiment of Icing Wind Tunnel(IWT), critical techniques are presented, e.g., its inner temperature, wind speed and the reproducing of the cloud and fog. During the experiments, a closed-loop controlled refrigerating system is employed to keep a low temperature condition, and a wind turbine system is used to generate airflow with high speed, and a fog spray system is applied to produce the artificial cloud, and the liquid water content and the cloud particle diameter can be controlled by adjusting the water pressure, the air pressure and the quantities of the operative nozzle. Further, the apparatuses and methods are discussed and compared for the correct observation on Liquid Water Content (LWC), Median Volume Diameter (MVD) and uniformity of the cloud and fog.
2013, Vol. 31 
