Delaying the Stall of A Low-Wing Aircraft Using A Novel Powerful Vortex Generator

In this study, a new aerodynamic surface concept is introduced, which powerful vortex generator (PVG). It can delay the stall point in low-wing aircraft. This leads to significant increase CLmax of an The results research show that use PVG, due its longitudinal position, does not affect center aircraft as well static stability. advantage for method compared based on LEX, moves forward and stability reduces. As case focused advanced training jet. Additionally, characteristics were investigated three points, including takeoff /landing condition, one maneuvering point, MMO condition. To evaluate PVG more realistic situations, wing airfoil was optimized at same points using adjoint method. Then, effect various configurations aircraft, clean configuration different types flap, investigated. Since all analyses performed computational fluid dynamics, first, validation numerical methods conducted two test cases low-speed high-speed flows. study greatly delays separation increases value CLmax. For example, hinged leading-edge flap single slotted trailing-edge than 12 degrees achieved, increased from 1.4 2.05 (46% increase).