Prospects for Modulation of Turbulent Boundary Layer by EHD Flows
In this paper, we present a review of the recent results obtained in the field of boundary layer modification using large-scale ElectroHydroDynamic (EHD) flows. EHD flows are a characteristic of Electrostatic Precipitators (ESPs) and the study of their in
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Series Editors: The Rectors Sandor Kaliszky - Budapest Mahir Sayir - Zurich Wilhelm Schneider - Wien The Secretary General Bernhard Schrefler - Padua Former Secretary General Giovanni Bianchi - Milan Executive Editor Carlo Tasso - Udine
The series presents lecture notes, monographs, edited works and proceedings in the field of Mechanics, Engineering, Computer Science and Applied Mathematics. Purpose of the series is to make known in the international scientific and technical community results obtained in some of the activities organized by CISM, the International Centre for Mechanical Sciences.
INTERNATIONAL CENTRE FOR MECHANICAL SCIENCES COURSES AND LECTURES - No. 415
TURBULENCE STRUCTURE AND MODULATION EDITED BY ALFREDO SOLDATI UNIVERSITY OF UDINE ROSSELLA MONTI POLITECNICO DI MILANO
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Springer-Verlag Wien GmbH
This volume contains 179 illustrations
This work is subject to copyright. AII rights are reserved, whether the whole or part of the material is concemed specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machi ne or similar means, and storage in data banks.
© 2001 by Springer-Verlag Wien Originally published by Springer-Verlag Wien New York in 2001 SPIN 10843531
In order to make this volume available as economicalIy and as rapidly as possible the authors' typescripts have been reproduced in their original forms. This method unfortunately has its typographical limitations but it is hoped that they in no way distract the reader.
ISBN 978-3-211-83339-1 DOI 10.1007/978-3-7091-2574-8
ISBN 978-3-7091-2574-8 (eBook)
PREFACE
The study of turbulent flows has great significance in a number of technological applications. In particular, transfer mechanisms which are relevant for the effectiveness of a specific technological application are often controlled by the dynamics of turbulence structures. The flow of fluids in a pipe, or the cruise of an airplane or a ship, are controlled by turbulent momentum transfer whereas the effectiveness of an industrial burner or the efficiency of a catalytic filter depend on the turbulent transfer of the reacting species. Regardless of the specific application task, if a technological process is to be optimized, the key is to modulate turbulence structures appropriately. Turbulence modulation is achieved by introducing into the flow field some sort ofperturbation which can affect the turbulence scales mainly responsible for turbulence transfer mechanisms. When turbulence control is the goal, it is thus necessary first of all to have a sound understanding of turbulence in order to identify the specific features, or scales, which can control the dynamics of turbulence flow fields and, second, to devise turbulence control methods which can influence those scales. The study and understanding of these concepts is a major focus of current research activity in fluid mechanics.
This volume gathers contributions relative to turbulence and turbulence control. Specifically, this book contains selected printouts bas
