Patent
Configuration for vertical take-off and landing system for aerial vehicles
TLDR
In this article, a vehicle is coupled to a main body and a fluid generator, and at least one fore and one tail conduit are fluidly coupled to the generator and the primary airfoil element.Abstract:
A vehicle, includes a main body. A fluid generator is coupled to the main body and produces a fluid stream. At least one fore conduit and at least one tail conduit are fluidly coupled to the generator. First and second fore ejectors are fluidly coupled to the fore conduit, coupled to the main body and respectively coupled to a starboard side and port side of the vehicle. The fore ejectors respectively comprise an outlet structure out of which fluid flows. At least one tail ejector is fluidly coupled to the tail conduit. The tail ejector comprises an outlet structure out of which fluid flows. A primary airfoil element is coupled to the tail portion. A surface of the primary airfoil element is located directly downstream of the first and second fore ejectors such that the fluid from the first and second fore ejectors flows over the such surface.read more
Citations
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Patent
Fluidic propulsive system
TL;DR: In this article, a propulsion system coupled to a vehicle is described, which consists of a convex surface, a diffusing structure coupled to the convex surfaces, and at least one conduit coupled with the vehicle.
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Ejector and airfoil configurations
TL;DR: In this paper, a propulsion system coupled to a vehicle is described, which includes an ejector having an outlet structure out of which propulsive fluid flows at a predetermined adjustable velocity.
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Propeller-less drone using flow of wind
Jin-Woo Lee,Hwan-Tae Kim +1 more
TL;DR: In this paper, a drone with a wind guide, including a body, a single central inlet unit accommodated in the body, and configured to introduce wind therein, at least two pairs of wind guides, and at least four connecting ducts.
References
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Patent
Gyro-stabilized air vehicle
TL;DR: In this paper, a vertical takeoff and landing (VTOL) air vehicle with two shrouded propellers, a fuselage and a gyroscopic stabilization disk installed in the fuselage is described.
Patent
Aircraft propulsion system
TL;DR: In this paper, an aircraft propulsion system which can secure the optimum thrust and thrust vector for flight conditions, as well as the optimum sectional area for the engine, and which is highly compatible with the environment is presented.
Journal ArticleDOI
Separation control on NACA23012 using synthetic jet
Sang Hoon Kim,Chongam Kim +1 more
TL;DR: In this article, a numerical study of separation control has been made to investigate aerodynamic characteristics of NACA23012 airfoil with synthetic jets, and it was observed that the actual flow control mechanism and flow structure is fundamentally different depending on the range of synthetic jet frequency.
Patent
Undulated nozzle for enhanced exit area mixing
John M. Seiner,Mikhail Gilinsky +1 more
TL;DR: In this article, the authors proposed an undulating surface for enhancing the mixing of a primary flow with a secondary flow or ambient air, without requiring an ejector, which is ideal for application as a jet engine nozzle.
Patent
An unmanned flight vehicle including counter rotating rotors positioned within a toroidal shroud and operable to provide all required vehicle flight controls
TL;DR: In this paper, an unmanned flight vehicle with two counter-rotating rotors are positioned within a toroidal fuselage and in which rotor pitch solely is utilized to generate all required lift, pitch, roll, yaw and vibration and stress control for the vehicle.