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首页> 外文期刊>International Journal of Heat and Mass Transfer >The optimization of simulated icing environment by adjusting the arrangement of nozzles in an atomization equipment for the anti-icing and deicing of aircrafts
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The optimization of simulated icing environment by adjusting the arrangement of nozzles in an atomization equipment for the anti-icing and deicing of aircrafts

机译：通过调节喷嘴在雾化设备中喷嘴布置的仿真和模糊飞机的优化

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摘要

To investigate the aircraft icing problem, simulation of the high-altitude clouds as the icing environment becomes necessary. Clouds always contain many micro-scale subcooled droplets. The accurate control of the icing environment simulation is challenging. In this study, to optimize the icing environment simulation, the arrangement of 10 nozzles in the atomizer was adjusted. A model of the atomization equipment in an icing cloud simulation system was independently developed and fully experimentally validated with two parameters, the ice shape and the maximum ice thickness on the test rod. The error of maximum ice thickness, the maximum and mean deviations are 2.6%, 1.13 mm and 0.68 mm, respectively. Then, the performance of the icing environment at 6 different nozzle arrangements were simulated and analyzed. The spreading area of water droplets and the uniformity of liquid water content distribution were proposed to evaluate the simulated icing environment performance. For the best nozzle arrangement, the spreading area and the area-weighted average of liquid water content are 0.24009 m~2 and 0.168 g/m~3, respectively. For the worst case, the spreading area and the area-weighted average of liquid water content are 0.22511 m~2 and 0.17056 g/m~3, respectively. Additionally, increasing the horizontal distance between two nozzles in the middle spray bar adversely affects the performance of the simulated icing environment. Contributions of this study could effectively guide the realization of a better simulated icing environment.
机译：为了调查飞机结冰问题，需要仿真为糖化环境的高空云。云始终包含许多微级亚冷液滴。准确控制结冰环境模拟是具有挑战性的。在本研究中，为了优化糖化环境模拟，调节雾化器中10个喷嘴的布置。结冰云仿真系统中的雾化设备模型独立地开发并用两个参数，冰形和试验杆上的最大冰厚度进行了全实验验证。最大冰厚度的误差，最大和平均偏差分别为2.6％，1.13mm和0.68mm。然后，模拟和分析了糖化环境在6个不同的喷嘴布置中的性能。提出了水滴的扩散区域和液体含水量分布的均匀性，以评估模拟结冰环境的性能。对于最佳喷嘴布置，分散区域和液体含水量的面积加权平均值分别为0.24009m〜2和0.168g / m〜3。对于最坏的情况，分散区域和液体含水量的面积加权平均值分别为0.22511m〜2和0.17056g / m〜3。另外，增加中间喷射杆中的两个喷嘴之间的水平距离对模拟糖化环境的性能产生不利影响。本研究的贡献可以有效地指导实现更好的模拟锦冰环境。

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