Basics of Aerothermodynamics Second, Revised Edition
This successful book gives an introduction to the basics of aerothermodynamics, as applied in particular to winged re-entry vehicles and airbreathing hypersonic cruise and acceleration vehicles. The book gives a review of the issues of transport of moment
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Second, Revised Edition
Basics of Aerothermodynamics 123
Basics of Aerothermodynamics
Ernst Heinrich Hirschel
Basics of Aerothermodynamics Second, Revised Edition
ABC
Ernst Heinrich Hirschel Herzog-Heinrich-Weg 6 85604 Zorneding Germany e-mail: [email protected]
ISBN 978-3-319-14372-9 DOI 10.1007/978-3-319-14373-6
ISBN 978-3-319-14373-6
(eBook)
Library of Congress Control Number: 2014958979 Springer Cham Heidelberg New York Dordrecht London c Springer International Publishing Switzerland 2015 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. Printed on acid-free paper Springer International Publishing AG Switzerland is part of Springer Science+Business Media (www.springer.com)
Preface to the Second Edition
The last decade has seen the successful performance at hypersonic speed of ramjet and scramjet propulsion systems. This probably is the true dawn of airbreathing hypersonic flight. In any case, these recent accomplishments are the motivation to emphasize the importance of viscous effects in this second edition of the Basics of Aerothermodynamics. The flow past airbreathing hypersonic flight vehicles is viscosity-effects dominated. These effects concern the viscous drag (a large part of the total drag), the integrated aerothermodynamic airframe/propulsion flow path including the engine’s air inlets and nozzles, and the performance of aerodynamic trim, stabilization and control surfaces. In the flow past re-entry vehicles viscous effects are mainly important at trim and control surfaces. The viscous drag there—on a large part of the re-entry trajectory—is only a small part of the total drag. In view of vehicle design and development an important aspect needs to be considered. The surface of the external flow path of an hypersonic vehicle of any kind is mainly surface-radiation cooled, at very high Mach numbers in particular cases also actively cooled. The ensuing wall temperatures and heat fluxes in the gas at the wall—the thermal state of the wall —are variable
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