Dahal, ChiranjiviKhadka, BishowdipMaharjan, LujaaSaud, PradeepTimalsina, Sewak2025-10-152025-10-152025-04https://hdl.handle.net/20.500.14540/25280Owing to the reputation of humpback whale flippers in delaying stall and improving the post stall performance, four different wings at Reynolds Number of 85,000 with varying leading-edge profile on NACA 63215 was experimented on open section Wind Tunnel.enCounter-Rotating VortexPassive Flow ControlPost-StallProject Report