Suction Boundary Layer to Reduce Drag on an Airfoil: Using the Velocity Profile & Vorticity Distribution Balance
Journal Title: International Journal of Innovation in Science and Mathematics - Year 2018, Vol 6, Issue 2
Abstract
A method to reduce drag on an airfoil is the so-called suction boundary layer. This helps stabilize the flow and prevent transition to turbulence. The flow over the infinite flat plate consists of a suction velocity through the porous wall, so that v = -V at the plate surface, y = 0. The flow in the stream wise direction is u(y) and at the plate satisfies the viscous no-slip condition but tends to the freestream value U far above the plate. We determine the velocity profile and the vorticity distribution for this flow, as well as the mechanisms that act to maintain this balance of the vorticity.
Authors and Affiliations
Steve Anglin
Keywords
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