Separation control is a research area focused on developing techniques and methods to control the flow of fluid or air around objects in order to improve their performance or efficiency. This can involve manipulating the flow to reduce drag, increase lift, or prevent separation of the boundary layer, among other things. Separation control techniques can be applied to a variety of applications such as aerodynamics, hydrodynamics, and heat transfer. Researchers in this area often use computational fluid dynamics (CFD) simulations, wind tunnel testing, and experimental methods to study and optimize separation control strategies.