Mesoscale Analysis of Air-Water Two-Phase Flow

In nature and engineering, a free-surface flow entraps air through its free surface when moving at a relatively high velocity, forming an air-water two-phase flow, which has both positive and negative effects.

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Mesoscale Analysis of Hydraulics

Mesoscale Analysis of Hydraulics

Weilin Xu

Mesoscale Analysis of Hydraulics

Weilin Xu Sichuan University Chengdu, China

ISBN 978-981-15-9784-8 ISBN 978-981-15-9785-5 (eBook) https://doi.org/10.1007/978-981-15-9785-5 © The Editor(s) (if applicable) and The Author(s) 2021. This book is an open access publication. Open Access This book is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made. The images or other third party material in this book are included in the book’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the book’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. This work is subject to copyright. All commercial rights are reserved by the author(s), 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. Regarding these commercial rights a non-exclusive license has been granted to the publisher. 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 Nature Singapore Pte Ltd. The registered company address is: 152 Beach Road, #21-01/04 Gateway East, Singapore 189721, Singapore

Foreword I

In the world today, the height of large dams has exceeded 300 m resulting in flow velocity faster than 50 m/s at its appurtenant water release structures. Thus the safe flood passage at such very high dams is becoming more and more challenging. In fact, high-velocity flows have been at the origin of the most severe dam