Internal flow systems:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Bedford
BHRA
1990
|
| Ausgabe: | 2. ed. |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | X, 396 S. graph. Darst. |
| ISBN: | 0947711775 |
Internformat
MARC
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Datensatz im Suchindex
| _version_ | 1804118475456643072 |
|---|---|
| adam_text | First edition published in 1978
Reprinted, 1984, 1985, 1986
This second edition published by:
BHRA (Information Services)
The Fluid Engineering Centre,
Cranfield, Bedford MK43 OAJ, UK
Tel (0234) 750422 Telex: 825059 Fax: (0234) 750074
© BHRA, 1978, 1990
British Library Cataloguing in Publication Data
Miller, Donald S (Donald Stuart), 1936-
Intemal flow systems — 2nd ed
1 Fluids Steady flow in pipe networks Measurement
I Title
532 052
ISBN 0-947711-77-5
This publication is protected by international copyright law 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
the permission of the publishers
The publishers accept no responsibility for any of the statements or opinions expressed in
this work
Printed and bound by Unwin Brothers Ltd ,
The Gresham Press, Old Woking, Surrey GU22 9LH
A Member of the Martins Printing Group
IV
CONTENTS
Foreword vii
Symbols amp; Definitions j
PARTI
1 INTRODUCTION
Types of flow 5
Systems of units and fluid properties 5
Equations of incompressible fluid flow 7
Universality of loss coefficients 11
System loss coefficients 15
Kinetic energy distribution 19
2 ORIGINS OF PRESSURE LOSSES
Introduction 21
Turbulence 22
Adverse gradients 23
3 CALCULATION OF SYSTEM PRESSURE, FLOW OR SIZE
Introduction 27
Equations for losses 27
System calculation and pump or fan selection 28
Tolerance on calculated values 31
4 MANAGEMENT OF DESIGN OF FLOW SYSTEMS
Introduction 33
Performance and reliability 33
Inlet flow conditions 35
Operating conditions 35
Sealing 38
Flow design audits and reviews 39
Notes and references 49
5 INTERNAL FLOWS
Introduction 51
Straight pipes and passages 51
Straight wall diffusers 59
Turning flow 71
Interactions between bends 80
Combined turning and diffusing flow 83
Combining and dividing flow 87
Abrupt changes in area and direction 95
Laminar flow 102
v
6 CAVITATION
Introduction 107
Types of cavitation 108
Definitions 114
Cavitation performance of diffusers 117
Cavitation performance of bends 117
Cavitation at surface discontinuities 118
Cavitation in slots 120
Cavitation due to roughness 121
Sudden enlargements - orifices 121
Cavitation performance of sudden enlargements 123
Cavitation performance of long orifices 124
Cavitation performance of butterfly valves 125
Cavitation performance of globe valves 126
Cavitation performance of ball valves 127
High energy dissipation 127
Examples 128
Notes and references 132
7 COMPRESSIBLE FLOW
Introduction 135
Mach number and choking 136
Compressible flow relationships 136
Mach numbers encountered in internal flow 141
Choked flow 143
Coefficients of compressible flows 146
Calculation procedure 151
System calculations 163
Valves 164
Pressure relief and depressuring system 173
Isothermal flow 175
Examples 175
Notes and references 184
PART II
8 FRICTION IN PIPES AND PASSAGES
Introduction 189
Pipes of circular cross-section 191
Non-circular cross-sections 193
Calculation of head, flow or pipe size 1%
Laminar flow 196
Examples 197
Notes and references 203
vi
9 TURNING FLOW-BENDS
Introduction 205
Circular cross-section bends of constant area 205
Rectangular cross-section bends of constant area 209
Single mitre bends 214
90° composite mitre bends 214
Variable area and variable radius ratio bends 215
180° annular bends 218
Vaned bends 220
Coils 222
Commercial bends 222
Laminar flow in bends 223
Example 223
Notes and references 225
10 CORRECTING FOR BEND-BEND INTERACTIONS
Introduction 227
Combinations of 90° bends 227
Combinations of two similar bends less than 90° 229
Combinations of non-circular cross-section bends 230
Combination of 90° vaned bends 232
Example 232
Notes and references 233
11 DIFFUSION-DIFFUSERS
Introduction 235
Standard diffusers 237
Annular diffusers with significant radial flow 245
Asymmetric diffusion 245
Curved wall diffusers 246
Circular to rectangular diffusing transitions 248
Design of diffusers lying above the optimum design line 249
Examples 254
Notes and references 257
12 COMBINED TURNING AND DIFFUSION FLOW
Introduction 259
Design recommendations for current diffusers 262
90° bend-spacer—diffuser combinations 265
Effect of bend radius ratio 268
Effect of bend angle 278
Effect of inlet boundary layer thickness 286
Effect of aspect ratio 286
Diffuser-spacer—bend combinations 287
Composite turning diffusers 287
Curved wall diffusers 294
Corrections for bend—diffuser-bend interactions 297
Notes and references 300
13 DIVIDING AND COMBINING FLOW
Introduction 303
Sharp-edged combining Ts 306
Effect of radii coefficients of combining Ts 313
Symmetrical combining junctions 315
Sharp-edged dividing Ts 317
Effect of radii on coefficients of dividing Ts 320
Improved performance of dividing Ts 321
Symmetrical dividing junctions 321
Junctions with more than three legs 322
Effects of cross-sectioned shape 329
T-junction interactions with bends 338
Loss coefficients for holes in pipe walls 345
Manifolds 346
Examples 349
Notes and references 360
14 MISCELLANEOUS SYSTEM COMPONENTS
Introduction 363
Orifices, screens and perforated plates 364
Differential flowmeters 371
Inlets and contractions 372
Expansions and free discharge nozzles 373
Valves 376
Laminar flow 382
Notes and references 387
APPENDIX TO PART fi 389
INDEX 391
|
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| id | DE-604.BV004282411 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T16:10:53Z |
| institution | BVB |
| isbn | 0947711775 |
| language | English |
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| publisher | BHRA |
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| spelling | Miller, Donald S. Verfasser aut Internal flow systems D. S. Miller 2. ed. Bedford BHRA 1990 X, 396 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Fluid dynamic measurements Pipe - Fluid dynamics Strömungsmesstechnik (DE-588)4129610-2 gnd rswk-swf Rohrströmung (DE-588)4050412-8 gnd rswk-swf Laminare Strömung (DE-588)4034181-1 gnd rswk-swf Energieverlust (DE-588)4014735-6 gnd rswk-swf Rohrströmung (DE-588)4050412-8 s Energieverlust (DE-588)4014735-6 s DE-604 Strömungsmesstechnik (DE-588)4129610-2 s Laminare Strömung (DE-588)4034181-1 s 1\p DE-604 HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=002663250&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
| spellingShingle | Miller, Donald S. Internal flow systems Fluid dynamic measurements Pipe - Fluid dynamics Strömungsmesstechnik (DE-588)4129610-2 gnd Rohrströmung (DE-588)4050412-8 gnd Laminare Strömung (DE-588)4034181-1 gnd Energieverlust (DE-588)4014735-6 gnd |
| subject_GND | (DE-588)4129610-2 (DE-588)4050412-8 (DE-588)4034181-1 (DE-588)4014735-6 |
| title | Internal flow systems |
| title_auth | Internal flow systems |
| title_exact_search | Internal flow systems |
| title_full | Internal flow systems D. S. Miller |
| title_fullStr | Internal flow systems D. S. Miller |
| title_full_unstemmed | Internal flow systems D. S. Miller |
| title_short | Internal flow systems |
| title_sort | internal flow systems |
| topic | Fluid dynamic measurements Pipe - Fluid dynamics Strömungsmesstechnik (DE-588)4129610-2 gnd Rohrströmung (DE-588)4050412-8 gnd Laminare Strömung (DE-588)4034181-1 gnd Energieverlust (DE-588)4014735-6 gnd |
| topic_facet | Fluid dynamic measurements Pipe - Fluid dynamics Strömungsmesstechnik Rohrströmung Laminare Strömung Energieverlust |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=002663250&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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