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Icing Environment Rotor Test Stand Liquid Water Content Measurement Procedures and Ice Shape Correlation

机译:结冰环境转子试验台液体含水量测量程序和冰形相关性

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摘要

An Adverse Environment Rotor Test Stand (AERTS) facility has been designed and constructed. The facility is able to reproduce natural icing conditions surrounding rotating blades with a maximum diameter of 9 ft and tip speeds of up to 470 ft/s. A Liquid Water Content (LWC) calculation methodology was developed, and procedures to determine experimental LWC in the facility are presented in this paper. Ice shape measurements on a 10.5-inch-chord, 9-ft-diameter, NACA 0012 rotor were obtained at the AERTS facility and compared with experimental results obtained at the NASA Glenn Icing Research Tunnel. The experimental ice shape correlation is excellent, with stagnation ice thickness and impingement limits deviating by less than 1% between results obtained in the AERTS facility and NASA Glenn Icing Research Tunnel. Ice shape correlation demonstrates the capability of the facility to produce accurate icing clouds.
机译:设计并建造了逆向环境转子试验台(AERTS)。该设备能够重现旋​​转刀片周围的自然结冰条件,最大直径为9英尺,叶尖速度最高为470英尺/秒。开发了一种液态水含量(LWC)的计算方法,并介绍了确定该设施中实验性LWC的程序。在AERTS设施上获得了直径为10.5英寸弦,直径为9英尺的NACA 0012转子的冰形测量结果,并将其与NASA Glenn Icing研究隧道获得的实验结果进行了比较。实验冰的形状相关性极好,在AERTS设施和NASA Glenn Icing研究隧道获得的结果之间,停滞的冰厚和撞击极限偏差不到1%。冰的形状相关性证明了该设施产生准确的糖霜云的能力。

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