目錄
1 Introduction
1.1 Research Background and Proposal of Topics
1.1.1 Condensation
1.1.2 Frosting and Icing
1.1.3 Proposal of Topics
1.2 Research Status
1.2.1 Fabrication of Superhydrophobic Surfaces
1.2.2 Condensation and Droplet Behaviors on Superhydrophobic Surfaces
1.2.3 Frost/Ice Melting and Droplet Behaviors on Superhydrophobic Surfaces
1.2.4 Summary of Research Status
1.3 Research Contents of Present Work
References
2 Experimental System and Superhydrophobic Surfaces
2.1 Experimental System and Data Processing
2.1.1 Overview of Experimental System
2.1.2 Data Processing Methods
2.2 Fabrication and Characterization of Superhydrophobic Surfaces
2.2.1 Fabrication Methods of Superhydrophobic Surfaces
2.2.2 Al-Based Superhydrophobic Surfaces
2.2.3 Cu-Based Superhydrophobic Surfaces
2.3 Selection of Superhydrophobic Surfaces for Experiments
2.4 Summary
References
3 Behaviors of Condensed Droplets on Superhydrophobic Surfaces
3.1 Experimental Surfaces and Conditions
3.2 Condensed Droplet Behaviors on Superhydrophobic Surfaces
3.2.1 Immobile Droplet Coalescence
3.2.2 Self-propelled Droplet Jumping
3.2.3 Self-propelled Droplet Sweeping
3.3 Statistics of Condensed Droplet Behaviors on Superhydrophobic Surfaces
3.4 Critical Conditions for Self-propelled Droplet Behaviors
3.4.1 Theoretical Model
3.4.2 Minimum Critical Droplet Radius
3.4.3 Critical Ratio of Droplet Radius
3.4.4 Critical Static Contact Angle
3.5 Effect of Self-propelled Droplet Behaviors on Droplet Growth
3.5.1 Droplet Diameter Distribution
3.5.2 Average Droplet Diameter
3.5.3 Surface Coverage Fractions
3.5.4 Effects of Working Conditions
3.6 Summary
References
4 Numerical Simulations of Multi-droplet Coalescence-Induced Jumping
4.1 Simulation Objects and Conditions
4.2 Mathematical Model
4.2.1 Control Equation
4.2.2 Computational Domain, Boundary Conditions, and Grids
4.2.3 Energy Analysis
4.3 Model Validation- Two-Droplet Coalescence-Induced Jumping
4.4 Multi-droplet Coalescence-Induced Droplet Jumping
4.4.1 Effect of Coalesced Droplet Number
4.4.2 Effect of Droplet Position Distribution
4.5 Summary
References
5 Dynamic Melting of Freezing Droplets on Superhydrophobic Surfaces
5.1 Experimental Surfaces and Conditions
5.2 Freezing of Condensed Droplets on Superhydrophobic Surfaces
5.3 Self-propelled Behaviors During Melting Process of Freezing Droplets
5.3.1 Melting Droplet Rotating
5.3.2 Melting Droplet Jumping
5.3.3 Melting Droplet Sliding
5.4 Effects of Self-propelled Melting Droplet Behaviors on Surface Coverage Fraction
5.5 Summary of This Chapter
References
6 Meltwater Evolution During Defrosting on Superhydrophobic Surfaces
6.1 Experimental Surfaces and Conditions
6.2 Meltwater Evolution on Superhydrophobic Surfaces
6.3 Edge Curling Phenomenon of Meltwater Films
6.4 Non-breaking Phenomenon of Chained Droplets
6.5 Summary
References
7 Relation Between Surface Wettability and Droplet Behaviors, and Hysteresis Number
7.1 Morphologies and Behaviors of Condensed Droplets and Melted Droplets
7.1.1 Morphologies and Behaviors of Condensed Droplets
7.1.2 Morphologies and Behaviors of Melted Droplets
7.2 Relation Between Surface Wettability and Droplet Behaviors
7.3 Hysteresis Number
7.4 Summary
References
8 Conclusions and Outlooks
8.1 Main Conclusions in the Present Work
8.2 Innovations in the Present Work
8.3 Outlooks for Future Research
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