douglas fluid mechanics 5th txtbk
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douglas fluid mechanics 5th txtbk


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The fifth edition of this established text provides an excellent and
comprehensive treatment of fluid mechanics that is concisely
written and supported by good worked examples.
Fluid Mechanics has become a textbook of choice with both students and
lecturers, due to its:
FLUID MECHANICS
FIFTH EDITION
FLU
ID
M
EC
H
A
N
IC
S
DOUGLAS 
GASIOREK 
SWAFFIELD
JACK
FIFTH
EDITION
This revision of a classic text presents relevant material for mechanical and
civil engineers, as well as energy and environmental services engineers. 
It recognises the evolution of the subject and provides thorough coverage of
both established theory and emerging topics.
Excellent coverage
\u2022 All the latest developments and applications, including emerging
specialisms
\u2022 Strong coverage of the principles of fluid flow \u2013 fundamentals emphasized
early in the text
Emphasis on understanding
\u2022 Good, clear explanations, together with extensive worked examples and
tutorials \u2013 brought together to reinforce the reader\u2019s understanding of all
the key principles
Helpful resources on accompanying website
\u2022 With solutions to tutorials and simulations of fluid mechanics, presented
through some 20 programs, all fully discussed in the text
\u2022 New chapters on the impact of environmental change and the fluid
mechanics required to both understand the consequences of climate
change and develop renewable energy technologies 
\u2022 Updated chapter on dimensional analysis 
\u2022 Updated solutions manual 
\u2022 Extended website to include enhanced and additional simulations 
Fluid Mechanics is ideal for use throughout a first degree course in all
engineering disciplines where a good understanding of the subject is required. 
It is also suitable for conversion MSc courses requiring a fundamental treatment
of fluid mechanics and will be a valuable resource for specialist Continuing
Professional Development courses, including those offered by Distance Learning.
Authors
Dr John Douglas,
formerly of South Bank
University, London.
Dr Janusz Gasiorek, 
formerly of South Bank
University, London where he
led the Fluid Mechanics
group in Mechanical
Engineering, with specialist
research interest in
rotodynamic machinery and
fan engineering.
Professor John Swaffield,
Heriot\u2013Watt University, has
taught fluid mechanics for
30 years with specialist
research in pressure
transients, free surface
unsteady flows and water
conservation.
Dr Lynne Jack, 
Heriot\u2013Watt University, 
senior lecturer in energy
systems and associated
environmental impacts, 
with research interests in
unsteady flow modelling and
the implications for the 
built environment of climate
change.
www.pearson-books.com
Building on the success of previous editions, this fifth edition introduces 
the following new features:
COVER IMAGE: MARINE CURRENT
TURBINES TM LTD 
John F. Douglas
Janusz M. Gasiorek 
John A. Swaffield
Lynne B. Jack
Additional student support at
www.pearsoned.co.uk/douglas
0131292935_COVER 9/8/05 3:07 PM Page 1
 
 
Fluid Mechanics
 
Visit the 
 
Fluid Mechanics
 
, fifth edition Companion Website at 
 
www.pearsoned.co.uk/douglas
 
 to find valuable 
 
student
 
 
learning material including:
 
l
 
Simulations and computer programs for students, with 
clear instructions on how to use them to enhance study
 
FM5_A01.fm Page i Friday, November 17, 2006 4:43 PM
 
 
We work with leading authors to develop the
strongest educational materials in engineering,
bringing cutting-edge thinking and best learning
practice to a global market.
Under a range of well-known imprints, including
Prentice Hall, we craft high quality print and
electronic publications which help readers to
understand and apply their content, whether 
studying or at work.
To find out more about the complete range of our
publishing please visit us on the World Wide Web at:
www.pearsoned.co.uk
 
 
 
FM5_A01.fm Page ii Friday, November 17, 2006 4:43 PM
 
 
Fluid Mechanics
 
Fifth edition
 
J
 
OHN
 
 F. D
 
OUGLAS
 
M.Sc., Ph.D., A.C.G.I., D.I.C., C.Eng., M.I.C.E., M.I.Mech.E.
Formerly of London South Bank University
 
J
 
ANUSZ
 
 M. G
 
ASIOREK
 
B.Sc., Ph.D., C.Eng., M.I.Mech.E., M.C.I.B.S.E.
Formerly of London South Bank University
 
J
 
OHN
 
 A. S
 
WAFFIELD
 
F.R.S.E., B.Sc., M.Phil., Ph.D., C.Eng., M.R.Ae.S., F.C.I.W.E.M., F.C.I.B.S.E.
William Watson Professor of Building Engineering and Head of the School 
of the Built Environment, Heriot-Watt University, Edinburgh
 
L
 
YNNE
 
 B. J
 
ACK
 
B.Eng., Ph.D., M.I.L.T.
Senior Lecturer in Environmental Engineering, School of the Built 
Environment, Heriot-Watt University, Edinburgh
 
FM5_A01.fm Page iii Friday, November 17, 2006 4:43 PM
 
 
Pearson Education Limited
 
Edinburgh Gate
Harlow
Essex CM20 2JE
England
and Associated Companies throughout the world
 
Visit us on the World Wide Web at:
 
www.pearsoned.co.uk
First published by Pitman Publishing Limited 1979
Second Edition 1985
Third Edition published under the Longman imprint 1995
Fourth Edition 2001
Fifth Edition 2005
© J. F. Douglas, J. M. Gasiorek and J. A. Swaffield 1979, 2001
© J. F. Douglas, J. M. Gasiorek, J. A. Swaffield and Lynne B. Jack 2005 
The rights of J. F. Douglas, J. M. Gasiorek, J. A. Swaffield and Lynne B. Jack 
to be identified as authors of this Work have been asserted in accordance 
with the Copyright, Designs and Patents Act 1988.
All rights reserved. No part of this publication may be reproduced, stored 
in a retrieval system, or transmitted in any form or by any means, electronic, 
mechanical, photocopying, recording or otherwise, without either the prior 
written permission of the publisher or a licence permitting restricted copying 
in the United Kingdom issued by the Copyright Licensing Agency Ltd, 
90 Tottenham Court Road, London W1T 4LP.
ISBN-13: 978-0-13-129293-2
ISBN-10: 0-13-129293-5
 
British Library Cataloguing-in-Publication Data
 
A catalogue record for this book is available from the British Library
 
Library of Congress Cataloging-in-Publication Data
 
Fluid mechanics / John F. Douglas ... [et al.].\u2014 5th ed.
p. cm.
Includes bibliographical references and index.
1. Fluid mechanics. I. Douglas, John F.
 TA357.D68 2006
 620.1\u201906\u2014dc22
2005054617
10 9 8 7 6 5 4 3 2
10 09 08 07 06
Set by 35 in 10/12pt Times Roman
Printed and bound by Ashford Colour Press Ltd, Gosport
 
FM5_A01.fm Page iv Friday, November 17, 2006 4:43 PM
 
 
for
Janusz M. Gasiorek 
1927\u20132003 
friend and guide
 
FM5_A01.fm Page v Friday, November 17, 2006 4:43 PM
 
 
FM5_A01.fm Page vi Friday, November 17, 2006 4:43 PM
 
 
Contents
 
Preface to the Fifth Edition xix
Preface to the Fourth Edition xxi
Preface to the Third Edition xxiv
Preface to the Second Edition xxvi
Preface to the First Edition xxvii
Acknowledgements xxviii
List of Computer Programs xxix
List of Symbols xxxi
 
PART I ELEMENTS OF FLUID MECHANICS
Chapter 1 Fluids and their Properties 2
 
1.1 Fluids 4
1.2 Shear stress in a moving fluid 4
1.3 Differences between solids and fluids 5
1.4 Newtonian and non-Newtonian fluids 6
1.5 Liquids and gases 7
1.6 Molecular structure of materials 7
1.7 The continuum concept of a fluid 9
1.8 Density 10
1.9 Viscosity 11
1.10 Causes of viscosity in gases 12
1.11 Causes of viscosity in a liquid 13
1.12 Surface tension 14
1.13 Capillarity 15
1.14 Vapour pressure 16
1.15 Cavitation 17
1.16 Compressibility and the bulk modulus 17
1.17 Equation
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Can I get solution manual for this book in PDF, please?
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A pipe 25 mm in diameter is connected to the center of the top of a drum
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