| 飞机结冰传感器安装位置确定方法 |
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| 引用本文： | 易贤,李维浩,王应宇,马洪林.飞机结冰传感器安装位置确定方法[J].实验流体力学,2018,32(2):48-54. |
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| 作者姓名： | 易贤 李维浩 王应宇 马洪林 |
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| 作者单位： | 中国空气动力研究与发展中心 空气动力学国家重点实验室, 四川 绵阳 621000 |
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| 基金项目： | 国家自然科学基金11472296 |
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| 摘 要： | 结冰传感器的安装直接决定了冰的探测效果，在飞机设计阶段往往要耗费巨大的工作量来确定合适结冰传感器安装的位置。本文提出了一种高效确定结冰传感器安装位置的方法，其基本思路是采用数值计算的手段，获得不安装结冰传感器飞机流场的水滴容积分数分布；再根据水滴收集率的定义，得到传感器拟安装区域不同位置的水滴收集率，并与机翼表面的水滴收集率对比；从保证传感器可以起到预警作用的角度出发，进而给出传感器的安装位置。采用该方法对某型民航客机进行了分析，给出了该型飞机适合安装传感器的区域。在此基础上，将传感器加载到对应位置进行数值仿真验证。仿真结果显示:传感器探头处的水滴收集率与不加载传感器时该位置的水滴收集率基本一致，均大于同等条件机翼上的最大水滴收集率，符合飞机的结冰防护需求。本文方法可普遍应用于运输类飞机设计，有效提高结冰防护系统设计的效率。
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| 关 键 词： | 飞机结冰 结冰传感器 结冰防护系统 水滴收集率 数值计算 |
| 收稿时间： | 2017-12-14 |
Method of determining the location for aircraft icing prober |
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| Affiliation: | State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China |
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| Abstract: | The icing prober is an important component of an aircraft icing protection system. The location of an icing prober affects the ice detection results greatly. It often takes a huge amount of work to determine the location of the icing prober in the process of aircraft design. In this paper, a method of determining the installation position of the icing prober with high efficiency is presented. The basic idea is using numerical method to obtain the volume fraction distribution of water droplets in the flow field around the aircraft without introducing the icing prober firstly. Then the water collection efficiency at the locations where the prober may be installed is yielded according to the results of the volume fraction distribution of water droplets, and it is compared with water collection efficiency on the wing. Finally the locations of the prober are given from the point of view that the prober has an early warning function. The method is then used in an airliner design, and the position suitable for prober location is given. On this basis, the prober is loaded at the corresponding position and a full numerical simulation is taken for the combining configuration of the aircraft and the prober. The simulation results show that the water collection efficiency at the position with prober is similar to that without prober, and both are larger than the value on the wing under the same condition, which means the requirements of the icing protection for early warning are met. The method can be applied to the any transport aircraft and improve the design efficiency of the icing protection system. |
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