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微细沸腾传递现象 英文版pdf电子书版本下载

微细沸腾传递现象  英文版
  • 彭晓峰著 著
  • 出版社: 北京:清华大学出版社
  • ISBN:9787302223559
  • 出版时间:2010
  • 标注页数:258页
  • 文件大小:41MB
  • 文件页数:271页
  • 主题词:沸腾-传递-现象-研究-英文

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图书目录

1 Introduction 1

1.1 Critical Technology 1

1.2 History and Trends of Boiling 2

1.3 Micro Boiling 3

References 4

2 Thermal Physical Fundamentals 6

2.1 Phase and Phase Equilibrium 6

2.2 Phase Transition 9

2.3 Interfacial Aspects 12

2.4 Contact Angle and Dynamical Contact Behavior 16

2.4.1 Contact Angle at Equilibrium 16

2.4.2 Contact Angle Hysteresis 17

2.4.3 Dynamical Contact Angle 19

2.5 Cluster Dynamics 21

2.5.1 Clusters 21

2.5.2 Number Balance of Activated Molecules in a Cluster 21

2.5.3 Cluster Evolution with Intemal Perturbations 24

2.5.4 Cluster Evolution with External Perturbations 25

References 26

3 Boiling Nucleation 28

3.1 Nucleus Formation 29

3.1.1 Mean Free Path 29

3.1.2 Self-Aggregation 29

3.1.3 Aggregate Formation 31

3.1.4 Critical Aggregation Concentration 33

3.1.5 Infinite Aggregation Formation 34

3.1.6 Physical Configuration of Nucleus Formation 35

3.2 Interfacial Efiects on Nucleation 36

3.2.1 Nucleus Structure Evolution 36

3.2.2 Interfacial Tension of a Nucleus 37

3.2.3 Modification of Nucleation Rate 38

3.3 Microscope Activation neat a F1at Surface 39

3.3.1 Liquid Behavior neat a Heated Wall 39

3.3.2 Nucleation Position 42

3.3.3 Embryo Bubble Evolution 44

3.4 Bubble Evolution from a Cavity 46

3.4.1 Description of Heterogeneous Nucleation 46

3.4.2 Nucleation with One Barrier 50

3.4.3 Heterogeneous Nucleation with Two Barriers 54

References 59

4 Jet Flow Phenomena 60

4.1 Experimental Phenomena 61

4.1.1 Boiling on a Plate Heater 61

4.1.2 Boiling on Small Wires 64

4.2 Bubble-ToP Jet Flow Structure 69

4.2.1 General Features 69

4.2.2 Jet Structure 70

4.2.3 Multi Bubble-Top Jet Flow 71

4.3 Dynamical Behavior of Bubble-Top Jet Flows 72

4.3.1 Jet Flow Evolution 72

4.3.2 Competition and Self-Organization of Jet Flows 75

4.4 Models of Bubble-Top Jet Flow 78

4.4.1 Goveming Equations 78

4.4.2 Fundamental Considerations 79

4.5 Characteristics of Bubble-Top Jet Flow 80

4.5.1 Jet Flow Driving Force and Pumping Effect 80

4.5.2 Jet Flow Bifurcation Phenomenon 82

4.6 Formation of Bubble-Top Jet Flow 85

4.6.1 Temperature Evolution 85

4.6.2 Temperature Evolution on Bubble Interface 88

4.6.3 Flow Evolution 89

References 91

5 Bubble Dynamics on Fine Wires 92

5.1 Modes of Bubble Motion 93

5.1.1 Bubble Sweeping 93

5.1.2 Bubble Interaction 95

5.1.3 Bubble Oscillation Phenomena 97

5.1.4 Bubble Leaping 99

5.2 Fundamentals of Bubble Dynamics 102

5.2.1 Thermocapillary Force 102

5.2.2 Force Caused by Bubble Motion 104

5.2.3 Dynamic Equation 107

5.3 Bubble Sweeping Dynamics 108

5.3.1 Single Bubble Sweeping 108

5.3.2 Bubble Separation from an Immobile Bubble 109

5.3.3 Separation of Two Equivalent Moving Bubbles 113

5.3.4 Separation of Two Non-Equivalent Bubbles 114

5.4 Bubble Collision Dynamics 115

5.4.1 Collision with an Immobile Bubble 115

5.4.2 Collision of Two Equivalent Bubbles 117

5.4.3 Bubble Coalescence 118

5.5 Bubble Oscillation 119

5.5.1 Temperature Profile of a Two Immobile Bubbles System 119

5.5.2 Bubble Oscillation Characteristics 120

5.5.3 Bubble Oscillations with Various Effective Viscosities 122

5.5.4 Coupling Bubble Oscillation 124

5.6 Bubble Leaping Dynamics 126

5.6.1 Dynamical Description 126

5.6.2 Simple Leaping Dynamics 128

5.6.3 Heat Transfer Performance during Bubble Leaping and Sweeping 131

References 131

6 Boiling in Micrchannels 133

6.1 Experimental Observations 134

6.1.1 General Behavior 134

6.1.2 Nucleation Superheat 135

6.1.3 Experimental Phenomena 137

6.2 Physical Explanation 138

6.2.1 Evaporating Space and Fictitious Boiling 138

6.2.2 Thermodynamic Evidence 139

6.2.3 Cluster Dynamical Evidence 141

6.3 Nucleation Criterion 143

6.3.1 Thermodynamic Analysis 143

6.3.2 Statistical Mechanics Approach 145

6.3.3 Dynamic Model 149

6.4 Nucleation Kinetics 151

6.4.1 Bubble Evolution Dynamics near Critical Radius 151

6.4.2 Nucleation in Confined Space 154

6.5 Bubble Dynamic Behavior with Local Heating 158

6.5.1 Experiments 158

6.5.2 Phase Change Behavior 159

6.6 Interface Oscillation 160

6.6.1 Periodic Feature 160

6.6.2 Evaporating Interface 163

6.6.3 Condensing Interface 167

Reterences 172

7 Boiling in Droplets 175

7.1 Oscillation of Sessile Droplets 176

7.1.1 Experimental Observations 176

7.1.2 Oscillatory Behavior 179

7.1.3 Physical Understanding 181

7.2 Model of Droplet Oscillation 184

7.2.1 Physical Model 184

7.2.2 Flow Characteristics 184

7.3 Transitional Boiling Behavior 188

7.3.1 Experimental Description 188

7.3.2 Restricted Cyclical Phase Change 190

7.3.3 Single-Bubble Cyclical Phase Change 191

7.3.4 Metastable Cyclical Phase Change 193

7.4 Droplet Spreading During Evaporation and Nucleation 194

7.4.1 Phenomenon Observations 194

7.4.2 Influencial Factors 195

7.4.3 Spread Area and Spread Speed 197

7.4.4 Heat Fluxes 199

References 200

8 Boiling in Micro-Structures and Porous Media 201

8.1 Experimental Observations 202

8.1.1 Test Apparatus 202

8.1.2 Low Applied Heat Flux 203

8.1.3 Moderate Applied Heat Flux 207

8.1.4 High Applied Heat Flux 207

8.2 Bubble Behavior in Bead-Packed Structure 208

8.2.1 Boiling Process 208

8.2.2 Static Description of Primary Bubble Interface 210

8.2.3 Comparison of Results 212

8.3 Replenishment and Dynamic Behavior of Interface 214

8.3.1 Replenishing Liquid Flow 214

8.3.2 Dynamic Behavior of Bubble Intefface 216

8.3.3 Interfacial Heat and Mass Transfer at Pore-Level 219

8.4 Pore-Scale Bubble Dynamics 222

8.4.1 Introduction 222

8.4.2 Discrete Rising Bubble 223

8.4.3 Bubble Departure Interference 225

8.5 Occurrence of Dryout 226

8.5.1 Lateral Bubble Coalescence and Local Vapor Patch Formation 226

8.5.2 Dryout 227

8.5.3 Discussion and Comparison 228

Reterences 231

9 Explosive Boiling 233

9.1 Experimental Phenomena 234

9.1.1 Visual Observation Test 234

9.1.2 Jet Flow in/from Mini Tubes 236

9.1.3 Exploding Emission from Micro Tubes 239

9.2 Temperature Behavior During Emitting 241

9.3 Theoretical Discussion 244

9.3.1 Geometrical Parameters 244

9.3.2 Critical Emitting Heat Flux 244

9.3.3 Asymmetrical Effect 247

References 249

Index 250

Postscript 254

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