Development and Application of Plasma Actuators for Active Control of High-Speed and High Reynolds Number FlowsActive flow control is often used to manipulate flow instabilities to achieve a desired goal (e.g. prevent separation, enhance mixing, reduce noise, etc.). Instability frequencies normally scale with flow velocity scale and inversely with flow length scale (U/l). In a laboratory setting for such flow experiments, U is high, but l is low, resulting in high instability frequency. In addition, high momentum and high background noise & turbulence in the flow necessitate high amplitude actuation. Developing a high amplitude and high frequency actuator is a major challenge. Ironically, these requirements ease up in application (but other issues arise).
Sammy, Mo (Ohio State Univ. OH, United States)
August 24, 2013
February 1, 2010
Publication: Minnowbrook VI: 2009 Workshop on Flow Physics and Control for Internal and External Aerodynamics