Study on Plasma Flow Control of Nacelle Flow Separation Under Crosswind Conditions

By simplifying the nacelle into a two-dimensional model, the numerical simulation is used to study the plasma flow control of the nacelle flow separation under crosswind conditions. Firstly, the flow separation characteristics of nacelles under different crosswind conditions are studied, and the influence of crosswind angle and velocity on flow separation is clarified. Further, this paper selects typical working conditions to arrange the plasma actuation on the inner surface of the nacelle, and studied the plasma flow control law of nacelle flow separation under different actuation parameters. The results show that the optimal control effect is obtained when multiple excitations are applied simultaneously upstream of the separation starting point, and the average total pressure loss is reduced by 21.3%. © 2021, Science Press. All right reserved.