Patent ID: 8656957

Claim:
A vortex generator for generating streamwise vorticity in a boundary layer comprising: a first ramp-vane element with a front end and a back end, a ramp surface extending between the front end and the back end, and a pair of vertical surfaces extending between the front end and the back end adjacent the ramp surface; a second ramp-vane element with a front end and a back end, a ramp surface extending between the front end and the back end, and a pair of vertical surfaces extending between the front end and the back end adjacent the ramp surface; and a flow channel between the first ramp-vane element and the second ramp-vane element, wherein the back ends of the first and second ramp-vane elements have a height greater than a height of the front ends, and the front ends of the ramp-vane elements have a width greater than a width of the back ends, and wherein a distance between the back ends of the first and second ramp-vane elements is smaller than a distance between the front ends of the first and second ramp-vane elements.