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

在空气动力学中使用电磁效应的潜在好处与流量控制目的是一个研究领域，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若干商业和军事应用，这一直是全世界关注和投资的主题。然而，大多数研究仍然集中在了解影响这种电流体动力（EHD）装置性能的关键参数上，因为在将其集成到实际应用中之前还有几个问题需要克服。在将此类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、电力要求和对高速状态（例如在航空航天中遇到的）的适用性的影响。由于其简单性，特别考虑的EHD装置是所谓的介质阻挡放电（DBD）等离子体执行器。庞巴迪航空航天公司（BA）对使用EHD执行器来减少陆地齿轮噪音排放的可能性非常感兴趣。

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).