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Showing 1 to 8 of 8 for “"Coanda Effect"”.
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Circulation control for download wake reduction on a scaled V-22 model
… download force through the incorporation of the Coanda Effect around the leading and trailing edges. The induction of this phenomenon will move the separation region of the airflow to the underside of the wing, thus decreasing the area of wake region separation. This technology, when applied to …
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A Conceptual Design Methodology for Predicting the Aerodynamics of Upper Surface Blowing on Airfoils and Wings
… the jet flow tends to remain attached by the "Coanda Effect". Wind tunnel and flight-testing have shown USB aircraft to be capable of producing maximum lift coefficients near 10. They have the additional benefit of shielding the engine noise above the wing and away from the ground. Given the …
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Control configured design for smooth, highly-maneuverable, underwater vehicles
… powerful centrifugal pumps with compact Coanda-effect valves. This system is used to design and construct a compact, multi-degree-of-freedom (DOF) prototype vehicle. To achieve precision orientation control, high speed valve switching is exploited using a unique Pulse Width Modulation …
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Augmented Propeller Design with the use of a Passive Circulation Control Pressurization System
… tangentially, through these slots inducing the Coanda Effect. This phenomenon keeps the boundary layer jet attached to the wing surface longer than a conventional wing and thus increases the lift generated on the wing surface due to the relaxation of the Kutta Condition for the rounded trailing …
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2D CFD Simulation of a Circulation Control Inlet Guide Vane
… Guide Vane (IGV) that takes advantage of the Coanda effect for flow vectoring. The IGV in this thesis is an uncambered airfoil that alters circulation around itself by means of a Coanda jet that exhausts along the IGV's trailing edge surface. The IGV is designed for an axial inlet flow at a …
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Design and Performance of Circulation Control Geometries
… trailing edge surface and in turn utilizes Coanda effect to increase the airfoil’s circulation, augmenting lift, drag, and pitching moment. The technology has been around for more than 75 years, but is now gaining more momentum for further development due to its significant payoffs in both …
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Intensification of Gas Absorption in a Downward Flow Microbubble Bioreactor
… below the micro-jet array: 1) “entrance effects” due to Higbie (1935) type penetration mechanisms due to the creation of ‘new’ surfaces as bubbles are broken up and formed dominate at short distances, 2) turbulent convective mechanisms on the liquid side of the bubble interfaces …
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Time-Resolved Analysis of Circulation Control over Supercritical Airfoil using Digital Particle Image Velocimetry (DPIV)
… circulation stemming from a trailing edge Coanda jet. A secondary objective is to reduce the amount energy expenditure used in these pneumatic techniques by implementing time-variant flow. This paper describes experimental observations of the flow behavior at the trailing edge of a modified …