Boundary Layer Flows
Research Area · Flow Control & Synthetic Jets
Boundary Layer Flows
Understanding and controlling the thin fluid region responsible for over half of aerodynamic drag on aircraft.
The boundary layer is the thin region of fluid pulled along by a vehicle as it moves through a stationary fluid — or as moving flow passes a stationary wall. Its behaviour governs skin-friction drag, which at cruise conditions accounts for over half of total aerodynamic drag on commercial aircraft.
With increasing environmental regulation and fuel costs, aerodynamic drag reduction is a central challenge for the aviation industry. Reducing skin-friction translates directly to lower thrust demand, reduced emissions, and fuel savings.
The lab investigates boundary layer structure, flow control strategies, and the physics of drag-generating near-wall flows.
Key Focus Areas
Skin-Friction Drag
Over 50% of cruise drag on commercial aircraft is attributed to boundary layer skin friction.
Flow Control
Active and passive strategies to delay or modify boundary layer behaviour.
Energy Impact
Drag reduction translates to fuel savings, emissions reduction, and environmental benefit.
Interested in this research?
Students and collaborators are encouraged to reach out to Prof. Hanson directly.