Computational Analysis Of A Two Slot Circulation Control Airfoil
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Computational Analysis Of A Two Slot Circulation Control Airfoil
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Author : Donald Joseph Ferguson (CAPT, USAF.)
language : en
Publisher:
Release Date : 1989
Computational Analysis Of A Two Slot Circulation Control Airfoil written by Donald Joseph Ferguson (CAPT, USAF.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Aerofoils categories.
Computational Analysis Of A Two Slot Circulation Control Airfoil
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Author : Donald J. Ferguson
language : en
Publisher:
Release Date : 1989
Computational Analysis Of A Two Slot Circulation Control Airfoil written by Donald J. Ferguson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
A two-slot circulation control airfoil was analyzed using the two-dimensional, compressible, mass-averaged, Navier-Stokes equations. The implicit Beam-Warming approximate factorization technique was used to calculate airfoil characteristics for a flight Mach number of 0.3 and a reynolds number near 3 million. The results were then compared to a previous one-slot solution. An existing circulation control airfoil was modified to include a second slot. Different blowing rates were then applied to each slot in various combinations. The lift generated for a given total blowing momentum for the two-slot airfoil was nearly identical to that for a single-slot airfoil when the lowest blowing rate was applied to the first slot. Although the lift per unit blowing momentum did not increase over the single-slot case, the maximum lift coefficient was increased due to the increased momentum available from the additional slot. Separation angle increased when a small amount of blowing was applied to the first slot, and additional blowing applied to the second slot. The airfoil moment followed the same trend as the single slot, and was less dependent on which the flow was applied. Due to the lack if experimental data, and the difficulty in modeling drag for the circulation control airfoil, it is difficult to compare drag. Keywords: Theses. (KR).
Foundations Of Circulation Control Based Small Scale Unmanned Aircraft
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Author : Konstantinos Kanistras
language : en
Publisher: Springer
Release Date : 2017-11-02
Foundations Of Circulation Control Based Small Scale Unmanned Aircraft written by Konstantinos Kanistras and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-02 with Technology & Engineering categories.
This book focuses on using and implementing Circulation Control (CC) - an active flow control method used to produce increased lift over the traditionally used systems, like flaps, slats, etc. - to design a new type of fixed-wing unmanned aircraft that are endowed with improved aerodynamic efficiency, enhanced endurance, increased useful payload (fuel capacity, battery cells, on-board sensors) during cruise flight, delayed stall, and reduced runway during takeoff and landing. It presents the foundations of a step-by-step comprehensive methodology from design to implementation and experimental testing of Coandǎ based Circulation Control Wings (CCWs) and CC system, both integral components of the new type of aircraft, called Unmanned Circulation Control Air Vehicle. The methodology is composed of seven coupled phases: theoretical and mathematical analysis, design, simulation, 3-D printing/prototyping, wind tunnel testing, wing implementation and integration, and flight testing. The theoretical analysis focuses on understanding the physics of the flow and on defining the design parameters of the geometry restrictions of the wing and the plenum. The design phase centers on: designs of Coandǎ surfaces based on wing geometry specifications; designing and modifying airfoils from well-known ones (NACA series, Clark-Y, etc.); plenum designs for flow uniformity; dual radius flap designs to delay flow separation and reduce cruise drag. The simulation phase focuses on Computational Fluid Dynamics (CFD) analysis and simulations, and on calculating lift and drag coefficients of the designed CCWs in a simulation environment. 3-D printing and prototyping focuses on the actual construction of the CCWs. Wind tunnel testing centers on experimental studies in a laboratory environment. One step before flight testing is implementation of the qualified CCW and integration on the UAV platform, along with the CC system. Flight testing is the final phase, where design validation is performed. This book is the first of its kind, and it is suitable for students and researchers interested in the design and development of CCWs for small-scale aircraft. Background knowledge on fundamental Aerodynamics is required.
Masters Theses In The Pure And Applied Sciences
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Author : W. H. Shafer
language : en
Publisher: Plenum Publishing Corporation
Release Date : 1992
Masters Theses In The Pure And Applied Sciences written by W. H. Shafer and has been published by Plenum Publishing Corporation this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Education categories.
Masters Theses Listed by Discipline: Aerospace Engineering. Agricultural Economics, Sciences and Engineering. Architechtural Engineering and Urban Planning. Astronomy. Astrophysics. Ceramic Engineering. Communications Engineering and Computer Science. Cryogenic Engineering. Electrical Engineering. Engineering Mechanics. Engineering Physics. Engineering Science. Fuels, Combustion, and Air Pollution. General and Environmental Engineering. Geochemistry and Soil Science. Geological Sciences and Geophysical Engineering. Geology and Earth Science. Geophysics. Industrial Engineering. Marine and Ocean Engineering. Materials Science and Engineering. Mechanical Engineering and Bioengineering. Metallurgy. Meteorology and Atmospheric Science. 17 additional disciplines. Index.
Annual Index Abstracts Of Sae Technical Papers
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Author :
language : en
Publisher:
Release Date : 2006
Annual Index Abstracts Of Sae Technical Papers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Automobiles categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Japanese Science And Technology
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Author :
language : en
Publisher:
Release Date : 1986
Japanese Science And Technology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Science categories.
8th Easn Ceas Workshop On Manufacturing For Growth And Innovation
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Author : Konstantinos Kontis
language : en
Publisher: MDPI
Release Date : 2019-09-27
8th Easn Ceas Workshop On Manufacturing For Growth And Innovation written by Konstantinos Kontis and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-27 with Technology & Engineering categories.
This Special Issue contains selected papers from works presented at the 8th EASN–CEAS (European Aeronautics Science Network–Council of European Aerospace Societies) Workshop on Manufacturing for Growth and Innovation, which was held in Glasgow, UK, 4–7 September 2018. About 150 participants contributed to a high-level scientific gathering providing some of the latest research results on the topic, as well as some of the latest relevant technological advancements. Νine interesting articles, which cover a wide range of topics including characterization, analysis and design, as well as numerical simulation, are contained in this Special Issue.
Monthly Catalogue United States Public Documents
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Author :
language : en
Publisher:
Release Date : 1995
Monthly Catalogue United States Public Documents written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Government publications categories.
Monthly Catalog Of United States Government Publications
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Author :
language : en
Publisher:
Release Date : 1995
Monthly Catalog Of United States Government Publications written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Government publications categories.