Gas-liquid hydrodynamics in Taylor Flows with complex liquids Index
INDEX
INDEX
INDEX
INDEX
Chapter I Chapter I Chapter I Chapter I 1. Introduction...1 Chapter II Chapter II Chapter II Chapter II 2. Literature Review...3 2.1. Flow in capillaries...4 2.1.1.Flow regimes...4 2.1.2.Flow transitions...52.1.3.Influence of surface tension and viscosity...7
2.2. Taylor flow...9
2.2.1.Influence of shape...13
2.2.1.1. Round capillaries...13
2.2.1.2. Square capillaries...14
2.2.2.Mass transfer...16
2.2.2.1. Methodology for the identification of the mass transfer coefficient...19
2.2.2.2. Model for mass transfer coefficient...21
2.2.3.Pressure drop...25
2.2.3.1. Marangoni effect...28
2.2.3.2. Inertial effect...29
2.2.3.3. Gravitational effect...30
2.2.3.4. Evaluation of pressure drop...30
2.2.4.Gas and liquid slug properties...33
2.2.4.1. Gas Length...33
Gas-liquid hydrodynamics in Taylor Flows with complex liquids Index
2.2.4.3. Velocity...36
2.3. Rheology...38
2.3.1.Non Newtonian fluid...39
Chapter III Chapter III Chapter III Chapter III 3. Material and Methods...45
3.1. Experiment rig...45
3.2. PIV...49
3.3. HSV...56
3.4. Malvern Mastersizer...57
3.5. Rheology and surface tension equipment...58
3.5.1.Rheometer...59 3.5.2.Torsion balance...61 Chapter IV Chapter IV Chapter IV Chapter IV 4. Results...62 4.1. Characterisation of fluids...63 4.1.1.Rheology results...63 4.1.1.1. Advanced rheometer...63 4.1.1.1.1. Ludox sample...63 4.1.1.1.2. Glycerol sample...64 4.1.2.Surface tension...66
4.1.2.1. Torsion balance results...66
4.2. Malvern Mastersizer...67 4.2.1.110µm alumina particles...67 4.2.2.3µm alumina particles...69 4.3. HSV results...72 4.3.1.Flow pattern...72 4.3.2.Flow condicitons...74 4.3.3.Length...79 4.4. PIV results...83
4.4.1.Water and water with ludox...85
4.4.2.Alumina solutions...87
4.4.3.Magnitude velocity...89
4.4.4.Vorticity...93
4.4.5.Rate of strain...98
4.4.6.Stream lines and vortex...103
Gas-liquid hydrodynamics in Taylor Flows with complex liquids Index Chapter V Chapter V Chapter V Chapter V 5. Conclusions...108 Appendix Appendix Appendix Appendix AAAA
Data and graphs of viscosity' experiments...110
Appendix B Appendix B Appendix B Appendix B Ludox...118 References References References References...120...120...120...120
