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首页> 外文期刊>Journal of thermal analysis and calorimetry >Numerical investigation on the performance and anti-freezing design verification of atomization equipment in an icing cloud simulation system
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Numerical investigation on the performance and anti-freezing design verification of atomization equipment in an icing cloud simulation system

机译：结冰云模拟系统中雾化设备性能和防冻设计验证的数值研究

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摘要

Aircraft icing occurs when flying through the cloud containing supercooled water droplets or ice crystals, posing a threat to flight safety. To simulate the natural icing environment, a climatic environmental test facility was designed, in which atomization equipment was utilized to spray micro-sized water droplets. To optimize and provide a reference design for the atomization equipment, a numerical study on its performance and anti-freezing design verification was carried out. The developed model was successfully validated with the maximum experimental ice thickness and its outlined shape on the test rod, with the error of maximum ice thickness at only 2.6%. The maximum deviation and mean deviation are at 1.13 mm and 0.68 mm, respectively. Freeze protection was finally enabled by ensuring the supplement temperature of the water, as well as the air in pipes, higher than 28.85 degrees C. Results suggested the best position for the test, at 2 m upstream of the nozzle outlet. The water flow temperature at the nozzle outlet was 29.45 degrees C higher than the freezing point. As a validated and applicable method, this study shows its novelty and practical value in the development of the climatic environmental test facility.
机译：飞过含有过冷水液滴或冰晶的云时，飞过飞机结冰，对飞行安全构成威胁。为了模拟自然锦冰环境，设计了一种气候环境测试设施，其中利用雾化设备喷洒微尺寸的水滴。为了优化和提供雾化设备的参考设计，进行了对其性能和防冻设计验证的数值研究。开发模型以最大实验冰厚度及其在试杆上的概述形状成功验证，最大冰厚度仅为2.6％。最大偏差和平均偏差分别为1.13mm和0.68mm。通过确保水的补充温度以及管道中的空气，高于28.85℃，最终能够实现冻结保护。结果表明测试的最佳位置，在喷嘴出口的2米处。喷嘴出口处的水流温度高于冷冻点高29.45℃。作为经过验证和适用的方法，本研究表明了其在气候环境测试设施的发展中的新颖性和实用价值。

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