An airfoil having a fore airfoil element, an aft airfoil element, and a slot
region
in between them. These elements induce laminar flow over substantially all of the
fore airfoil element and also provide for laminar flow in at least a portion of
the slot region. The method of the invention is one for inducing natural laminar
flow over an airfoil. In the method, a fore airfoil element, having a leading and
trailing edge, and an aft airfoil element define a slot region. Natural laminar
flow is induced over substantially all of the fore airfoil element, by inducing
the pressures on both surfaces of the fore airfoil element to decrease to a location
proximate the trailing edge of the fore airfoil element using pressures created
by the aft airfoil element.
