Ducted Fan Design: Volume 1 - Propulsion Physics and Design of Fans and Long-Chord Ducts

Ducted Fan Design: Volume 1 - Propulsion Physics and Design of Fans and Long-Chord Ducts
Author: Marc de Piolenc
Publisher: Lulu.com
Total Pages: 182
Release: 2018-09-26
Genre: Technology & Engineering
ISBN: 0359104908

Presents a simplified method of designing ducted fans for light aircraft propulsion. Includes a survey of ducted-fan-powered aircraft, ranging from amateur-built airplanes to military models and prototypes. Detailed discussion of engines and list of suitable powerplants drawn from automobiles, ATVs and personal watercraft. Extensive technical bibliography and list of sources.

General Aviation Aircraft Design

General Aviation Aircraft Design
Author: Snorri Gudmundsson
Publisher: Butterworth-Heinemann
Total Pages: 1146
Release: 2021-10-31
Genre: Business & Economics
ISBN: 0128226471

General Aviation Aircraft Design, Second Edition, continues to be the engineer's best source for answers to realistic aircraft design questions. The book has been expanded to provide design guidance for additional classes of aircraft, including seaplanes, biplanes, UAS, high-speed business jets, and electric airplanes. In addition to conventional powerplants, design guidance for battery systems, electric motors, and complete electric powertrains is offered. The second edition contains new chapters: - Thrust Modeling for Gas Turbines - Longitudinal Stability and Control - Lateral and Directional Stability and Control These new chapters offer multiple practical methods to simplify the estimation of stability derivatives and introduce hinge moments and basic control system design. Furthermore, all chapters have been reorganized and feature updated material with additional analysis methods. This edition also provides an introduction to design optimization using a wing optimization as an example for the beginner. Written by an engineer with more than 25 years of design experience, professional engineers, aircraft designers, aerodynamicists, structural analysts, performance analysts, researchers, and aerospace engineering students will value the book as the classic go-to for aircraft design. - The printed book is now in color, with 1011 figures and illustrations! - Presents the most common methods for conceptual aircraft design - Clear presentation splits text into shaded regions, separating engineering topics from mathematical derivations and examples - Design topics range from the "new" 14 CFR Part 23 to analysis of ducted fans. All chapters feature updated material with additional analysis methods. Many chapters have been reorganized for further help. Introduction to design optimization is provided using a wing optimization as an example for the beginner - Three new chapters are offered, two of which focus on stability and control. These offer multiple practical methods to simplify the estimation of stability derivatives. The chapters introduce hinge moments and basic control system design - Real-world examples using aircraft such as the Cirrus SR-22 and Learjet 45

Axial Flow Fans

Axial Flow Fans
Author: R. A. Wallis
Publisher: Academic Press
Total Pages: 381
Release: 2014-05-12
Genre: 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.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports
Author:
Publisher:
Total Pages: 848
Release: 1970
Genre: Aeronautics
ISBN:

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

HVAC Systems Duct Design

HVAC Systems Duct Design
Author: Sheet Metal and Air Conditioning Contractors' National Association (U.S.)
Publisher:
Total Pages: 278
Release: 1981
Genre: Air conditioning
ISBN:

Small Unmanned Aircraft

Small Unmanned Aircraft
Author: Randal W. Beard
Publisher: Princeton University Press
Total Pages: 317
Release: 2012-02-26
Genre: Technology & Engineering
ISBN: 1400840600

Autonomous unmanned air vehicles (UAVs) are critical to current and future military, civil, and commercial operations. Despite their importance, no previous textbook has accessibly introduced UAVs to students in the engineering, computer, and science disciplines--until now. Small Unmanned Aircraft provides a concise but comprehensive description of the key concepts and technologies underlying the dynamics, control, and guidance of fixed-wing unmanned aircraft, and enables all students with an introductory-level background in controls or robotics to enter this exciting and important area. The authors explore the essential underlying physics and sensors of UAV problems, including low-level autopilot for stability and higher-level autopilot functions of path planning. The textbook leads the student from rigid-body dynamics through aerodynamics, stability augmentation, and state estimation using onboard sensors, to maneuvering through obstacles. To facilitate understanding, the authors have replaced traditional homework assignments with a simulation project using the MATLAB/Simulink environment. Students begin by modeling rigid-body dynamics, then add aerodynamics and sensor models. They develop low-level autopilot code, extended Kalman filters for state estimation, path-following routines, and high-level path-planning algorithms. The final chapter of the book focuses on UAV guidance using machine vision. Designed for advanced undergraduate or graduate students in engineering or the sciences, this book offers a bridge to the aerodynamics and control of UAV flight.

1993 ASHRAE Handbook

1993 ASHRAE Handbook
Author: American Society of Heating, Refrigerating and Air-Conditioning Engineers
Publisher:
Total Pages: 880
Release: 1993
Genre: Air conditioning
ISBN: