An electrohydrodynamic rotary system and related method that include at least one rotary device comprising a hub portion, an axis of rotation, and at least one blade extending radially from the hub portion. The system includes at least one electrically conductive rotary electrode emitter coupled to the at least one blade proximate to the back edge, and at least one electrically conductive counter electrode positioned proximate to the at least one rotary device in a spaced relationship. The system further includes an electrical system that applies an electric potential difference between the at least one electrically conductive rotary electrode emitter and the at least one electrically conductive counter electrode that generates corona discharges from the at least one rotary electrode that form flows of ionic wind that rotate the at least one rotary device about the axis of rotation in a first direction.

An aircraft is disclosed having a lifting body housing a passenger cabin including a forward portion bounded laterally by at least one portion of a leading edge of the lifting body. The passenger cabin includes at least one lateral luggage storage device housed in the concavity formed by the leading edge portion and includes an opening towards the interior of the passenger cabin.

One embodiment is an apparatus including an airfoil-shaped body; and a chordwise variable vortex generation system associated with the airfoil-shaped body, the chordwise variable vortex generation system controlling a deployment of at least one vortex generator on a surface of the airfoil-shaped body, wherein the deployment of the at least one vortex generator is dependent on a current angle of attack of the airfoil-shaped body. In some embodiments, the chordwise variable vortex generation system includes an actuator for controlling a location of the deployment of the at least one vortex generator responsive to a control signal indicative of the current angle of attack of the airfoil-shaped body. In certain embodiments, the surface of the airfoil-shaped body is a top surface of the airfoil-shaped body. In some embodiments, the airfoil-shaped body is an aircraft wing.

An airflow profiled structure having a profiled leading edge. The profiled leading edge having, along a leading edge line, a serrated profile line with a succession of teeth and depressions. The airflow profiled structure also includes a porous acoustically absorbent region located towards the bottom of the depressions.

A wing comprising a leading edge composed of a skin transparent to microwaves, magnetrons implanted under the skin and arranged in rows and in columns alongside one another, between two successive rows of magnetrons, a discharge row successively comprising an electrode and a ground electrode, where each electrode passes through the skin and where each ground electrode is under the skin.

An aerodynamically optimized drag-reduction appartus and method for optimal minimization of the drag-induced resistive forces upon a terrestrial vehicle, where the drag-induced resistive moments on wheel surfaces pivoting about the stationary point of ground contact are reduced, and the vehicle propulsive forces needed to countervail the resistive forces on the wheel are reduced. The drag reduction apparatus includes: a streamlined fairing or wind deflector positioned on a vehicle to shield the faster moving upper wheel surfaces from headwinds; an engine exhaust pipe disposed on a vehicle whereby exhaust gases deflect headwinds to shield the faster moving upper wheel surfaces of an automotive wheel; an automotive spoked wheel having streamlined oval-shaped wheel spokes; a wheel assembly with a streamlined tailfin rotatably attached to a wheel spoke; a wheel with a tapered spoke having a thin aerodynamic profile near the rim and tapering to a round profile toward the central hub; and a tire having streamlined tread blocks arranged in an aerodynamic pattern.

A propulsion system coupled to a vehicle. The system includes an ejector having an outlet structure out of which propulsive fluid flows at a predetermined adjustable velocity. A control surface having a leading edge is located directly downstream of the outlet structure such that propulsive fluid from the ejector flows over the control surface.

A propulsion system coupled to a vehicle. The system includes an ejector having an outlet structure out of which propulsive fluid flows at a predetermined adjustable velocity. A control surface having a leading edge is located directly downstream of the outlet structure such that propulsive fluid from the ejector flows over the control surface.

Power and energy saving equipment can save the power to drive the vehicle forward at the same speed and save the energy consumed by the vehicle moving through the same distance at the same speed. When the vehicle with wing installed is moving forward, the pressure between top and bottom of the wing will create the lift force. This equipment utilizes the lift force created by the wing to reduce the friction force between the wheel and the ground.

Power and energy saving equipment can partially solve the serious energy shortage problem in the world with relatively low cost. It needs minor modification for the frame and chassis of the vehicle, so the lift force can be passed to the chassis on the vehicle, but it does not need to change the existing engine and driving system.

Power and energy saving equipment can be applied to many different type of vehicles such as car, truck, boat and train.

Power and energy saving equipment can save the power to drive the vehicle forward at the same speed and save the energy consumed by the vehicle moving through the same distance at the same speed. When the vehicle with wing installed is moving forward, the pressure between top and bottom of the wing will create the lift force. This equipment utilizes the lift force created by the wing to reduce the friction force between the wheel and the ground.

Power and energy saving equipment can partially solve the serious energy shortage problem in the world with relatively low cost. It needs minor modification for the frame and chassis of the vehicle, so the lift force can be passed to the chassis on the vehicle, but it does not need to change the existing engine and driving system.

Power and energy saving equipment can be applied to many different type of vehicles such as car, truck, boat and train.