Convection Heat Transfer / Edition 3

Convection Heat Transfer / Edition 3

by Adrian Bejan

ISBN-10: 0471271500

ISBN-13: 9780471271505

Pub. Date: 07/01/2004

Publisher: Wiley

This textbook has been revamped to fit the needs of today's students and instructors. This edition includes new chapters on convective heat transfer with phase change and turbulent flows. Contains revised material on buckling, the latest analytical techniques and fresh heat transfer correlations. Features more mathematical and thought-provoking problems.


This textbook has been revamped to fit the needs of today's students and instructors. This edition includes new chapters on convective heat transfer with phase change and turbulent flows. Contains revised material on buckling, the latest analytical techniques and fresh heat transfer correlations. Features more mathematical and thought-provoking problems.

Product Details

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6.14(w) x 9.21(h) x 1.56(d)

Table of Contents

Preface to the Second Editionxix
Preface to the First Editionxxi
List of Symbolsxxiii
1Fundamental Principles1
1.1Mass Conservation2
1.2Force Balances (Momentum Equations)4
1.3First Law of Thermodynamics9
1.4Second Law of Thermodynamics17
1.5Rules of Scale Analysis19
1.6Heatlines for Visualizing Convection23
2Laminar Boundary Layer Flow30
2.1Fundamental Problem in Convective Heat Transfer31
2.2Concept of Boundary Layer34
2.3Velocity and Thermal Boundary Layers37
2.4Integral Solutions42
2.5Similarity Solutions49
2.5.2Flow Solution51
2.5.3Heat Transfer Solution54
2.6Other Wall Heating Conditions58
2.6.1Unheated Starting Length58
2.6.2Arbitrary Wall Temperature59
2.6.3Uniform Heat Flux61
2.6.4Film Temperature62
2.7Effect of Longitudinal Pressure Gradient: Flow Past a Wedge and Stagnation Flow63
2.8Effect of Flow through the Wall: Blowing and Suction66
2.9Effect of Conduction across a Solid Coating Deposited on a Wall70
2.10Entropy Generation Minimization in Laminar Boundary Layer Flow73
2.11Heatlines in Laminar Boundary Layer Flow76
3Laminar Duct Flow96
3.1Hydrodynamic Entrance Length97
3.2Fully Developed Flow100
3.3Hydraulic Diameter and Pressure Drop104
3.4Heat Transfer to Fully Developed Duct Flow111
3.4.1Mean Temperature111
3.4.2Fully Developed Temperature Profile113
3.4.3Uniform Wall Heat Flux116
3.4.4Uniform Wall Temperature119
3.4.5Tube Surrounded by Isothermal Fluid122
3.5Heat Transfer to Developing Flow126
3.5.1Scale Analysis126
3.5.2Thermally Developed Uniform (Slug) Flow128
3.5.3Thermally Developing Hagen-Poiseuille Flow131
3.5.4Thermally and Hydraulically Developing Flow135
3.6Optimal Cooling of a Stack of Parallel Heat-Generating Plates136
3.7Heatlines in Fully Developed Duct Flow141
3.8Optimal Duct Shape for Minimum Flow Resistance144
3.9Optimization of Duct Layout: Tree-Shaped Networks147
4External Natural Convection178
4.1Natural Convection as a Heat Engine in Motion179
4.2Laminar Boundary Layer Equations181
4.3Scale Analysis183
4.3.1High-Pr Fluids185
4.3.2Low-Pr Fluids187
4.4Integral Solution190
4.4.1High-Pr Fluids191
4.4.2Low-Pr Fluids192
4.5Similarity Solution194
4.6Uniform Wall Heat Flux199
4.7Effect of Thermal Stratification202
4.8Conjugate Boundary Layers205
4.9Vertical Channel Flow207
4.10Combined Natural and Forced Convection (Mixed Convection)211
4.11Heat Transfer Results Including the Effect of Turbulence214
4.11.1Vertical Walls214
4.11.2Inclined Walls217
4.11.3Horizontal Walls219
4.11.4Horizontal Cylinder221
4.11.6Vertical Cylinder222
4.11.7Other Immersed Bodies223
4.12Optimal Cooling of a Stack of Vertical Heat-Generating Plates225
5Internal Natural Convection243
5.1Transient Heating from the Side244
5.1.1Scale Analysis244
5.1.2Criterion for Distinct Vertical Layers248
5.1.3Criterion for Distinct Horizontal Jets249
5.2Boundary Layer Regime252
5.3Shallow Enclosure Limit258
5.4Summary of Results for Heating from the Side267
5.4.1Isothermal Side Walls267
5.4.2Sidewalls with Uniform Heat Flux270
5.4.3Partially Divided Enclosures271
5.4.4Triangular Enclosures274
5.5Enclosures Heated from Below275
5.5.1Heat Transfer Results275
5.5.2Scaling Theory of the Turbulent Regime277
5.5.3Constructal Theory of Benard Convection279
5.6Inclined Enclosures286
5.7Annular Space between Horizontal Cylinders288
5.8Annular Space between Concentric Spheres290
5.9Enclosures for Thermal Insulation and Mechanical Strength290
6Transition to Turbulence307
6.1Empirical Transition Data307
6.2Scaling Laws of Transition309
6.3Buckling of Inviscid Streams313
6.4Local Reynolds Number Criterion for Transition316
6.5Instability of Inviscid Flow319
6.6Transition in Natural Convection on a Vertical Wall326
7Turbulent Boundary Layer Flow334
7.1Large-Scale Structure334
7.2Time-Averaged Equations336
7.3Boundary Layer Equations339
7.4Mixing-Length Model342
7.5Velocity Distribution344
7.6Wall Friction in Boundary Layer Flow351
7.7Heat Transfer in Boundary Layer Flow353
7.8Theory of Heat Transfer in Turbulent Boundary Layer Flow357
7.9Other External Flows363
7.9.1Single Cylinder in Cross Flow363
7.9.3Other Body Shapes366
7.9.4Arrays of Cylinders in Cross Flow366
7.10Natural Convection Along Vertical Walls371
8Turbulent Duct Flow384
8.1Velocity Distribution384
8.2Friction Factor and Pressure Drop386
8.3Heat Transfer Coefficient391
8.4Total Heat Transfer Rate395
8.4.1Isothermal Wall396
8.4.2Uniform Wall Heating397
8.5More Refined Turbulence Models398
8.6Heatlines in Turbulent Flow near a Wall402
8.7Optimal Channel Spacings for Turbulent Flow404
9Free Turbulent Flows414
9.1Free Shear Layers415
9.1.1Features of the Free Turbulent Flow Model415
9.1.2Velocity Distribution418
9.1.3Structure of Free Turbulent Flows419
9.1.4Temperature Distribution421
9.2.1Two-Dimensional Jets422
9.2.2Round Jets425
9.2.3Jet in Density-Stratified Reservoir428
9.3.1Round Plume and the Entrainment Hypothesis430
9.3.2Pulsating Frequency of Pool Fires435
9.3.3Geometric Similarity of Free Turbulent Flows439
9.4Thermal Wakes behind Concentrated Sources440
10Convection with Change of Phase446
10.1.1Laminar Film on a Vertical Surface446
10.1.2Turbulent Film on a Vertical Surface453
10.1.3Film Condensation in Other Configurations456
10.1.4Drop Condensation464
10.2.1Pool Boiling Regimes466
10.2.2Nucleate Boiling and Peak Heat Flux470
10.2.3Film Boiling and Minimum Heat Flux473
10.2.4Flow Boiling477
10.3Contact Melting and Lubrication478
10.3.1Plane Surfaces with Relative Motion478
10.3.2Other Contact Melting Configurations482
10.3.3Scale Analysis and Correlation485
10.3.4Melting Due to Viscous Heating in the Liquid Film487
10.4Melting by Natural Convection490
10.4.1Transition from the Conduction Regime to the Convection Regime491
10.4.2Quasisteady Convection Regime493
10.4.3Horizontal Spreading of the Melt Layer497
11Mass Transfer515
11.1Properties of Mixtures516
11.2Mass Conservation519
11.3Mass Diffusivities524
11.4Boundary Conditions526
11.5Laminar Forced Convection528
11.6Impermeable Surface Model532
11.7Other External Forced-Convection Configurations533
11.8Internal Forced Convection536
11.9Natural Convection538
11.9.1Mass-Transfer-Driven Flow540
11.9.2Heat-Transfer-Driven Flow540
11.10Turbulent Flow544
11.10.1Time-Averaged Concentration Equation544
11.10.2Forced Convection Results545
11.10.3Contaminant Removal from a Ventilated Enclosure548
11.11Massfunction and Masslines555
11.12Effect of Chemical Reaction555
12Convection in Porous Media566
12.1Mass Conservation567
12.2Darcy Flow Model and the Forchheimer Modification569
12.3First Law of Thermodynamics572
12.4Second Law of Thermodynamics577
12.5Forced Convection577
12.5.1Boundary Layers577
12.5.2Concentrated Heat Sources583
12.5.3Sphere and Cylinder in Cross Flow584
12.5.4Channel Filled with Porous Medium585
12.6Natural Convection Boundary Layers586
12.6.1Boundary Layer Equations: Vertical Wall586
12.6.2Uniform Wall Temperature587
12.6.3Uniform Wall Heat Flux589
12.6.4Optimal Spacings for Channels Filled with Porous Structures591
12.6.5Conjugate Boundary Layers593
12.6.6Thermal Stratification595
12.6.7Sphere and Horizontal Cylinder597
12.6.8Horizontal Walls599
12.6.9Concentrated Heat Sources599
12.7Enclosed Porous Media Heated from the Side604
12.7.1Four Heat Transfer Regimes604
12.7.2Convection Results608
12.8Penetrative Convection610
12.8.1Lateral Penetration610
12.8.2Vertical Penetration612
12.9Enclosed Porous Media Heated from Below613
12.9.1Onset of Convection613
12.9.2Darcy Flow617
12.9.3Forchheimer Flow619
12.10Multiple Flow Scales Distributed Nonuniformly621
12.10.1Heat Transfer624
12.10.2Fluid Friction625
12.10.3Heat Transfer Rate Density: The Smallest Scale for Convection626
12.11Constructal Design627
AConstants and Conversion Factors641
BProperties of Solids648
CProperties of Liquids658
DProperties of Gases660
EMathematical Formulas672
Author Index675
Subject Index685

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