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Physical Kinetics and Transfer Processes in Phase Transitions

ISBN:
1-56700-044-4 (Druckformat)

Physical Kinetics and Transfer Processes in Phase Transitions

Beschreibung

Processes of heat and mass transfer with phase transitions assume an important place in such modern technologies as thermal treatment and drying of materials, welding, metallurgy, heat protection, vacuum techniques, laser and electron-beam treatment of materials, and many other areas. Correct description of such processes, especially at high-rates, and at non-equilibrium conditions, requires the use of the methods of physical kinetics. The text covers external problems of heat and mass transfer in a weakly rarified gas on a permeable surface, internal problems of mass transfer kinetics, and transfer processes in high-porous media at different Knudsen numbers. Also discussed are transfer processes for free molecular gas flow in channels, problems of heat and mass.



186 pages, © 1995

Inhaltsverzeichnis:

Foreword
1 External Problems of Heat and Mass Transfer in a Weakly Rarefied Gas on Permeable Surface
1.1 Elements of Kinetics Theory of Gases
1.2 The Boundary Conditions of Jumps of Hydrodynamic Quantities on Permeable Surfaces
1.3 Boundary Conditions on the Discontinuity Surface
1.4 Interfacial Resistance at the Condensation of Pure Saturated Vapors
2 Internal Problems of Mass Transfer Kinetics
2.1 Model Kinetic Equations
2.2 Mass Transfer Kinetics at the Evaporation of a Filler in a Cylindrical Channel
2.3 The Flow of Binary Vapor-Gas Mixture at the Evaporation of a Filler in a Cylindrical Channel
2.4 Kinetics of Mass Transfer in a Cylindrical Channel During Evaporation from an Inner Surface
2.5 Kinetic Theory of Mass Transfer in a Cylindrical Catalytic Pore
2.6 Evaporation into Vacuum from the Orifice with Axial Symmetry
3 Transfer Processes in High-Porous Media at Different Knudsen Numbers
3.1 On Kinetic Theories of Transfer Processes in Dispersed and Porous Media
3.2 Mean Free Path Approximation in Mass Transfer Problems in Porous Bodies
3.3 The Model of One-Component Gas How for Different Knudsen Numbers During Evaporation and Filtration in Highly Porous Layer
4 Transfer Processes for Free Molecular Gas Flow in Channels
4.1 On Interaction of Molecules with Surfaces
4.2 Mass Transfer in a Single Capillary in the Presence of Mobile Adsorbed Layers
4.3 The Influence of the Difference in the Adsorption Time on Gas Flow through a Capillary
4.4 Gas Flow in a Capillary Taking into Consideration Phase Transitions
4.5 Some Issues of Substance Deposition from a Gaseous Phase
4.6 On Radiation-Induced Mass Transfer in Capillaries
5 Problems of Heat and Mass Transfer with Phase Transitions in Porous Media
5.1 Mathematical Description of Heat and Mass Transfer in Porous Bodies and the Stefan Problems
5.2 The Stefan-Type Problems in a Model Porous Body
5.3 Some Peculiarities of Non-Isothermal Mass Transfer in Porous Bodies
5.4 On the Influence of the Self-Diffusion of Atoms on Solid Body Mass Removal in the Case of Surface Reaction
6 Heat Effect of Electron Beam on Materials
6.1 Electron Absorption Kinetics and Heat Source Evaluation in Metals
6.2 The Influence of High-Current Electron Beam’s Proper Magnetic Field on Energy Release in Targets
6.3 Possibilities of the Strengthening of Metal Subsurface Layer by an Electron Beam
6.4 The Melting of Metals under the Influence of an Electron-Beam Heat Source
6.5 Heat Source Form Influence on the Material Surface Evaporation Character
6.6 The Boiling of Metals under the Influence of an Electron-Beam Heat Source
References