Author : Marc de Piolenc
Publisher : Lulu.com
Page : 182 pages
File Size : 10,34 MB
Release :
Category :
ISBN : 0359104908
[PDF] Ducted Fan Design eBook
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Ducted Fan Design, Volume 1
Author : F. Marc de Piolenc
Publisher :
Page : 160 pages
File Size : 41,61 MB
Release : 2001
Category : Airplanes
ISBN :
Aerodynamic Characteristics of a 4-foot-diameter Ducted Fan Mounted on the Tip of a Semispan Wing
Author : Kenneth W. Mort
Publisher :
Page : 38 pages
File Size : 33,19 MB
Release : 1962
Category : Airplanes
ISBN :
Power, free-stream velocity, and duct angle of attack were varied at several wing angles of attack to define the aerodynamic characteristics of the ducted fan, wing, and of the ducted fan wing together. At large duct angles of attack, the inside of the upstream duct lip stalled causing a rapid change in the duct pitching moments and an accompanying increase in the power required. At low horizontal velocities, this lip stall would probably limit the rate of descent of a vehicle with a wing-tip-mounted ducted fan. During low-speed, level, unaccelerated flight (30 to 80 knots) it appeared that a vehicle, with a configuration similar to that examined, would require less power if it were supported by a wing and ducted fans than if it were supported only by ducted fans. (Author).
DUCTED FAN DESIGN STUDY OF THE VERTODYNE.
Author : H. S. WAHL
Publisher :
Page : 37 pages
File Size : 14,50 MB
Release : 1956
Category :
ISBN :
Axial Flow Fans and Ducts
Author : R. A. Wallis
Publisher : Wiley-Interscience
Page : 464 pages
File Size : 17,44 MB
Release : 1983-09-23
Category : Science
ISBN :
Covers the theory, design, analysis, testing, and research of axial flow fans. Contains up-to-date data on recent developments in the field. Interrelates fan and duct design techniques. Discusses commercial and product development test procedures. Covers future experimental research objectives. Includes a reference section on F-series of airfoils.
Axial Flow Fans
Author : R. A. Wallis
Publisher : Academic Press
Page : 381 pages
File Size : 26,96 MB
Release : 2014-05-12
Category : Technology & Engineering
ISBN : 1483274225
Axial Flow Fans: Design and Practice focuses on the design of axial flow fans and the practices involved in their applications. The manuscript first offers information on the fluid mechanics of ducted fans, boundary layer and skin friction relations, and aerofoil data for blade design. Discussions focus on flow deflection in cascade of aerofoils, pitching moment, lift, surface roughness in turbulent boundary layers, turbulent boundary layers in pressure gradients, laminar skin friction, viscosity and boundary layers, and similarity and non-dimensional numbers. The text then ponders on vortex flows in ducting and fan, ducts, and introduction to fan design methods. The book takes a look at the momentum and blade element considerations on free vortex flow of rotor and rotor losses. Topics include momentum considerations, profile drag, tip clearance losses, optimum conditions in terms of the flow and swirl coefficients, pressure relations and velocity vectors, and thrust and torque gradients. Tail fairing design and associated losses, overall efficiencies, torque, thrust, and power, and the design of fan unit with arbitrary vortex flow are also discussed. The publication is a dependable source of information for engineers and readers interested in the design of axial flow fans and practices involved in their operation.
Ducted Fan Design for VTOL Aircraft Systems
Author : Hugh McGinnis Reynolds
Publisher :
Page : 132 pages
File Size : 29,11 MB
Release : 1970
Category :
ISBN :
Ducted Fan Design
Author :
Publisher :
Page : pages
File Size : 45,33 MB
Release : 2001
Category : duct fans
ISBN :
Notes on Ducted Fan Design
Author : R. C. Turner
Publisher :
Page : 37 pages
File Size : 21,65 MB
Release : 1964
Category :
ISBN :
Notes on Ducted Fan Design
Author : R. C. Turner
Publisher :
Page : 27 pages
File Size : 49,59 MB
Release : 1966
Category : Ducted fans
ISBN :