摘要
结冰将严重影响飞行器气动性能,如何实现低能耗、高效率、快响应破除冰是当前飞机尤其是无人机亟待解决的问题。基于电弧放电激励器射流强度高、能耗低、响应快等特点开展破除冰研究。通过实验及理论分析,分析了单个激励器对不同长宽比冰型的破除冰特性,获得了单个激励器有效破除冰半径约5 cm,建立了放电能量与破冰厚度之间的关系。从能量控制角度,研究了固定放电能量情况下,激励器阵列破除冰特性及裂纹扩展规律,通过合理设置激励器间距,在相同能耗情况下,能够实现比单个激励器更大的破除冰面积。研究成果可为飞行器低能耗、大面积破除冰提供理论及实践参考。
Icing seriously affects the aerodynamic performance of aircraft.Therefore,ice removal with low energy consumption,high efficiency,and fast response is critical for aircraft,particularly for UAVs.Based on the characteristics of high jet strength,low energy consumption and fast response of arc discharge plasma actuators,we conducted experimental and theoretical research on ice breaking.Analysis of ice-breaking characteristics of a single exciter for different length-width ratios showed that the effective ice-breaking radius of a single exciter is about 5 cm.Meanwhile,the relationship between discharge energy and ice-breaking thickness is established.From the perspective of energy control,the ice-breaking characteristics and crack propagation law of an exciter array under the condition of fixed discharge energy are studied,showing that reasonable setting of the exciter spacing achieved a larger de-icing area than that of a single exciter with the same energy consumption.The research results can provide theoretical and practical reference for aircraft with low energy consumption and large-area ice removal.
作者
景向嵘
程盼
罗振兵
高天翔
周岩
邓雄
JING Xiangrong;CHENG Pan;LUO Zhenbing;GAO Tianxiang;ZHOU Yan;DENG Xiong(College of Space Science,National University of Defense Technology,Changsha 410073,China)
出处
《航空学报》
EI
CAS
CSCD
北大核心
2022年第S02期207-216,共10页
Acta Aeronautica et Astronautica Sinica
基金
湖南省自然科学基金(2021JJ40672)
国家自然科学基金(12002377,12072352)
国家科技重大专项(J2019-Ⅲ-0010-0054)
沈阳市飞机结冰与防除冰重点实验室基金(YL2022XFX03)
作者简介
通信作者:程盼,E-mail:chengpan1020@163.com。
