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This brief article reviews the important advances in the field of flow control that took place during the past few years. This broad area of research remains of great interest for its numerous potential benefits for both the military and civilian sectors. Spurred by the recent developments in chaos control, microfabrication and neural networks, reactive control of turbulent flows is now in the realm of the possible for future practical devices. Other less complex control schemes, passive as well as active, are more market ready and are also witnessing resurgence of interest.
Mohamed Gad‐el‐Hak (1996) studied this question.