Active Flow Control: A Review

Flow control have been used for many years to control the fluid flow, and some employ different concepts to serve this purpose in last decades. The ability to manipulate a flow passively or actively is of immense technological importance. This paper is more concentrating on modern active flow control methods. These methods are used majorly to achieve transition delay, drag reduction, lift enhancement, turbulence management, separation postponement, noise suppression, etc. The potential benefits of flow control may include improved performance, affordability, fuel consumption economy, and environmental compliance. A review of major techniques used in this context (with more emphasis on experimental methods) is presented along with a brief discussion on each of them