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Basic Principles and Unit Problems

Separated and Vortical Flow in Aircraft Wing Aerodynamics

Ernst Heinrich Hirschel Arthur Rizzi Christian Breitsamter Werner Staudacher •

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Separated and Vortical Flow in Aircraft Wing Aerodynamics Basic Principles and Unit Problems

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Ernst Heinrich Hirschel Institute of Aerodynamics and Gasdynamics University Stuttgart Zorneding, Germany

Arthur Rizzi Department of Aeronautical and Vehicle Engineering Royal Institute of Technology Stockholm, Sweden

Christian Breitsamter Chair of Aerodynamics and Fluid Mechanics Technical University of Munich Munich, Germany

Werner Staudacher Institute of Flightsystems Bundeswehr University Munich Zorneding, Germany

ISBN 978-3-662-61326-9 ISBN 978-3-662-61328-3 https://doi.org/10.1007/978-3-662-61328-3

(eBook)

© Springer-Verlag GmbH Germany, part of Springer Nature 2021 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, expressed or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. This Springer imprint is published by the registered company Springer-Verlag GmbH, DE part of Springer Nature. The registered company address is: Heidelberger Platz 3, 14197 Berlin, Germany

Preface

This book is devoted to a presentation and discussion of the fluid mechanical aspects of separated and vortical flows in aircraft wing aerodynamics. The main focus is on large aspect-ratio wings and on small aspect-ratio delta-type wings. In general, we do not deal with aerodynamic design issues of these wings. Our aim is to foster an understanding of the basic properties of the wing vortex systems and their behavior. We further want to demonstrate the capabilities of numerical simulation methods for such flows and the interpretation of the results from a fluid-mechanical point of view. The economical and ecological pressures on, in particular, transport aircraft are progressively increasing. Military aircraft, on the other hand, faces large challenges with regard to