Transonic buffet alleviation via virtual control surfaces

In this work, computational fluid dynamics simulations are carried out to assess the ability of control surfaces alleviate or suppress transonic buffet. Among available surfaces, upper trailing edge flaps were considered since they modify aerofoil pressure distribution and fix shock at an upstream position. Spoilers also studied as produce a similar effect by interfering with disturbance propagation in boundary layer prevent For both devices, sensitivities geometric parameters studied. The effectiveness these buffet methods is first assessed for 2D computations around different wing sections. As spoilers more effective, results on 3D configuration provided discuss influence finite-span devices aerodynamic performance. addition, simple model accounting changes flight Mach number together spoiler presented simulate scenario provide effective strategy suppression. framework numerical investigations, adoption virtual allows avoiding difficulties associated modelling slotted deployable devices.