Ducted Fan Design: Volume 1 - Propulsion Physics and Design of Fans and Long-Chord Ducts
Author: Marc de Piolenc
Publisher: Lulu.com
Published:
Total Pages: 182
ISBN-13: 0359104908
DOWNLOAD EBOOK →Author: Marc de Piolenc
Publisher: Lulu.com
Published:
Total Pages: 182
ISBN-13: 0359104908
DOWNLOAD EBOOK →Author: Kenneth W. Mort
Publisher:
Published: 1962
Total Pages: 38
ISBN-13:
DOWNLOAD EBOOK →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).
Author: R. A. Wallis
Publisher: Wiley-Interscience
Published: 1983-09-23
Total Pages: 464
ISBN-13:
DOWNLOAD EBOOK →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.
Author: R. A. Wallis
Publisher: Academic Press
Published: 2014-05-12
Total Pages: 381
ISBN-13: 1483274225
DOWNLOAD EBOOK →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.
Author: Hugh McGinnis Reynolds
Publisher:
Published: 1970
Total Pages: 132
ISBN-13:
DOWNLOAD EBOOK →Author:
Publisher:
Published: 1980-06
Total Pages: 180
ISBN-13:
DOWNLOAD EBOOK →Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.
Author: William R. Hawthorne
Publisher: Princeton University Press
Published: 2015-12-08
Total Pages: 582
ISBN-13: 1400875609
DOWNLOAD EBOOK →Volume XI of the High Speed Aerodynamics and Jet Propulsion series. Edited by W.R. Hawthorne and W.T. Olson. This is a comprehensive presentation of basic problems involved in the design of aircraft gas turbines, including sections covering requirements and processes, experimental techniques, fuel injection, flame stabilization, mixing processes, fuels, combustion chamber development, materials for gas turbine applications, turbine blade vibration, and performance. Originally published in 1960. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.