An experimental study on the thermal characteristics of NS-DBD plasma actuation and application for aircraft icing mitigation
An experimental study on the thermal characteristics of NS-DBD plasma actuation and application for aircraft icing mitigation
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DOI：
10.1088/1361-6595/aaedf8
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发表时间：
2019-01-01
影响因子：
3.8
通讯作者：
Hu, Hui
中科院分区：
文献类型：
--
作者：
Liu, Yang;Kolbakir, Cem;Hu, Hui
为探索NS介质阻挡放电（DBD）等离子体激励器在翼型/机翼表面上的热特性，以及评估NS介质阻挡放电等离子体激励器用于飞机飞行防冰/除冰的性能，进行了一项综合研究。在详细描述了NS-DBD等离子体激励翼型/机翼模型的热能产生和传热的基本原理的同时，进行了一系列实验以评估不同环境参数对NS-DBD等离子体激励翼型/机翼表面加热效率的影响。利用时间同步和空间分辨的高速可视化和红外成像系统，不仅揭示了NS-DBD等离子体激励器在翼型/机翼表面的瞬态热特性，而且还评估了NS-DBD等离子体激励器在不同结冰条件（雾凇、混合和雨雾）下的防冰性能。基于测量结果，系统地研究了来流速度、空气温度和翼型/机翼模型攻角对翼型/机翼表面NS-DBD等离子体激励热特性的影响。结果表明，NS-DBD等离子体激励翼型/机翼表面的热特性与翼型/机翼模型表面的边界层气流和非定常传热过程密切耦合。不同结冰条件下NS-DBD等离子体激励器的防冰性能存在显著差异，这是由于NS-DBD等离子体激励器表面加热效率的变化造成的。NS-DBD等离子体激励器的防/除冰性能被发现显着改善通过增加等离子体激励器的工作频率。从本研究中得出的结果是非常有帮助的探索/优化设计范式的发展，专门为飞机飞行中结冰缓解，以确保更安全，更有效的飞机在大气结冰条件下运行的新型等离子体为基础的防/除冰策略。
A comprehensive study was performed to explore the thermal characteristics of NS-dielectric-barrier discharge (DBD) plasma actuation over an airfoil/wing surface and evaluate the anti-/de-icing performance of NS-DBD plasma actuators for aircraft in-flight icing mitigation. While the fundamentals of thermal energy generation and heat transfer in NS-DBD plasma actuation over the airfoil/wing model were described in great details, a series of experiments were conducted to evaluate the effects of different environmental parameters on the heating efficiency of NS-DBD plasma actuators over the airfoil/wing surface. With the temporally-synchronized-and-spatially-resolved high-speed visualization and infrared imaging system, not only the transient thermal characteristics of NS-DBD plasma actuation over the airfoil/wing surface were revealed, but also the anti-icing performances of the NS-DBD plasma actuators were evaluated under different icing conditions, i.e. rime, mixed, and glaze. The impacts of incoming airflow velocity, air temperature, and angle of attack of the airfoil/wing model on the thermal characteristics of NS-DBD plasma actuation over the airfoil/wing surface were systematically investigated based on the measurement results. It was found that the thermal characteristics of NS-DBD plasma actuation over the airfoil/wing surface are closely coupled with the boundary layer airflow and the unsteady heat transfer process over the airfoil/wing model exposed in the frozen-cold airflows. The anti-icing performances of the NS-DBD plasma actuators under the different icing conditions were found to be varying significantly due to the variations of surface heating efficiency of the NS-DBD plasma actuators. The anti-/de-icing performance of the NS-DBD plasma actuators was found to be improved dramatically by increasing the operating frequency of the plasma actuators. The findings derived from the present study are very helpful to explore/optimize design paradigms for the development of novel plasma-based anti-/de-icing strategies tailored specifically for aircraft inflight icing mitigation to ensure safer and more efficient aircraft operation in atmospheric icing conditions.