Development of dielectric barrier discharge plasma actuators for active flow control and the reduction of noise emission from a landing gear

在具有流量控制目的的空气动力学中使用电磁效应的潜在好处是一个研究领域，在过去的几年里产生了大量的研究。这种技术的潜在好处包括几个商业和军事应用，这些应用一直受到世界各地的关注和投资。然而，大多数研究仍然集中在了解影响这类电液动力(EHD)装置性能的关键参数，因为在将其集成到实际应用之前有几个问题需要克服。在将这些设备应用于实际系统之前，必须解决操作条件对EHD执行器性能、电力需求以及对高速状态(例如，在航空航天中遇到的情况)的适应性的影响。由于它们的简单性，一种特别需要考虑的EHD设备是所谓的介质阻挡放电(DBD)等离子体激励器。使用EHD执行器来减少陆地齿轮的噪声排放的可能性引起了庞巴迪航空航天公司(BA)的高度兴趣。*这项研究旨在开发用于先进流动管理系统的DBD等离子激励器技术，并建立在加拿大在这一主题上的现有专业知识的基础上。除了继续研究等离子体致动器的物理特性外，拟议的研究还将在概念验证实验中实施这些致动器，目的是使用主动流动控制方法减少起落架的噪音排放。多伦多大学的实验工作将得到工业合作伙伴庞巴迪航空航天公司的数值模拟的支持。

The potential benefits of using electromagnetic effects within aerodynamic with flow control purposes is an area of research that has generated numerous studies in the last years. Potential benefits of such technology include several commercial and military applications, which have been subject of attention and investment worldwide. However, most of the research is still focused on understanding key parameters affecting performance of such electro-hydrodynamic (EHD) devices, since there are several issues to be overcome before they can be integrated into practical applications. The effects of operating conditions on EHD actuator performance, electrical power requirements, and suitability to high-speed regimes (e.g., those encountered in aerospace) must be addressed before the application of such devices to practical systems. Due to their simplicity, an EHD device of particular consideration is the so called dielectric-barrier discharge (DBD) plasma actuator. The possibility of using EHD actuator to mitigate noise emissions from land gears has prompted high interest to Bombardier Aerospace (BA). ****This research aims to develop DBD plasma actuators technology for use in advanced flow management systems and to build on Canada's existing expertise on the topic. In addition to continued research on the physics of plasma actuators, the proposed research will also implement these actuators in a proof of concept experiment with the aim of reducing noise emissions from a landing gear using active flow control methodology. The experimental work at the University of Toronto will be support by numerical simulations from the industrial partner, Bombardier Aerospace.****