Experimental investigation on ice-breaking performance of a novel plasma striker  

作　　者：Tianxiang GAO Zhenbing LUO Yan ZHOU Shengke YANG Wenqiang PENG Xiong DENG Pan CHENG 

机构地区：[1]College of Aerospace Engineering,National University of Defense Technology,Changsha 410073,China [2]China Aerodynamics Research and Development Center,Mianyang 621000,China

出　　处：《Chinese Journal of Aeronautics》2022年第1期307-317,共11页中国航空学报（英文版）

基　　金：co-supported by the National Natural Science Foundation of China(No.12002377,52075538,11872374),the Open Fund of the Key Laboratory of Icing;Anti/De-Icing(No.1901IADL20190401);the Natural Science Foundation of Hunan Province(No.2020JJ5670,2020JJ2031);China Postdoctoral Science Foundation(No.2019M652754).

摘　　要：Aircraft icing has long been a plague to aviation for its serious threat to flight safety.Recently,researches about a newly proposed deicing method based on Plasma Synthetic Jet Actuator(PSJA)have just started.To meet the requirements of in-flight deicing,structure of PSJA needs to be adjusted.This paper completed the detailed design and experimental validation of a novel plasma striker,which was a modified version of PSJA.Influences of mass of the moving part and rod shapes on the ice-breaking performances were also studied.Besides,a“conical-nosed rod configuration”was proposed.Its purpose was to ensure a good ice-breaking performance of the plasma striker on long ice,by generating a splitting failure.Results show that,though mass of the moving part was just several grams,ice-breaking performance was better when the mass was lighter.The rectangular rod could generate an elliptical circumferential crack,whose major axis was parallel to the direction of the long side of the rectangular rod.And the“conical-nosed rod”concept was verified to be able to generate a splitting crack which can spread completely to the far end of long ice,and the crack direction was parallel to edge line of the cone.In general,the plasma striker has the advantages of simple structure,low energy consumption,little harm to the flow field and the aircraft skin.Simulations will be carried out in future works to study in detail the working process of the plasma striker.

关 键 词：Conical shaped rod DEICING Experimental tests High-speed photography Ice fracture Plasma striker 

分 类 号：V328[航空宇航科学与技术—人机与环境工程] V244.15