Abstract
AbstractOver the last decade, there has been considerable interest in the use of plasmas generated over high‐speed vehicles for flow control and energy management. Plasma flow control does not use moving parts, and can be turned on and off on a very short time scale. In laboratory experiments, thermal plasmas, laser‐induced breakdown, as well as various types of surface and volume‐filling electric discharge plasmas, have been widely used to modify both subsonic and supersonic flows. Potential plasma flow control applications include drag reduction, boundary layer separation and transition control, mixing enhancement, shock wave modification, wave drag reduction, and on‐board electrical power generation. Primary mechanisms of plasma flow control include magnetohydrodynamic (MHD) and electrohydrodynamic (EHD) interactions, as well as thermal methods using Joule heating of the flow. This article provides a brief overview of the main concepts and methods of plasma flow control.
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