Keywords:
Electronic books.
Type of Medium:
Online Resource
Pages:
1 online resource (380 pages)
Edition:
1st ed.
ISBN:
9781536192445
Series Statement:
Physics Research and Technology Series
URL:
https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=6489409
DDC:
536.25
Language:
English
Note:
Intro -- Contents -- Preface -- Acknowledgments -- About the Author -- Acronyms -- Chapter 1 -- Specification of Convective Heat Transfer in a Way of Process -- Abstract -- Nomenclature -- Special Characters -- Superscripts -- Subscripts -- 1. Why Specification of Convective Heat Transfer in a Way of Process Is Necessary -- 1.1. The Energy Conservation Equation Only Indicates the Final Result of Convective Heat Transfer -- 1.2. The Process Occurs on the Wall Surface Cannot be Determined -- 1.3. The Role of Velocity Gradient in Convective Heat Transfer is Not Specified -- 1.4. Why Different Nusselt Numbers are Obtained at Different Thermal Boundary Condition? -- 1.5. Why Different Nusselt Numbers are Obtained When the Same Mechanical Energy is Consumed by Fluid Flow? -- 1.6. Why Secondary Flow with Velocity in One Order Smaller Than That of Main Flow Can Enhance Convective Heat Transfer Greatly? -- 1.7. Why α is Called Thermal Diffusivity Instead of Temperature Diffusivity? -- 1.8. There is No Specification of Intensity Convective Heat Transfer in Flow Field -- 1.9. Do Analogies between Momentum, Heat and Mass Transports Exist? -- 2. General Governing Equation for the Transport of the Heat Flux -- 3. Physical Explanations the Convective Transport Equation of the Heat Flux -- 3.1. The Role of Heat Conduction in Convective Transport of the Heat Flux -- 3.2. The Right Position of α -- 3.3. The Role of Velocity in Convective Heat Transfer -- 3.4. The Role of Velocity Gradient in Convective Heat Transfer -- 3.5. What Kind Process Does Occur on the Wall Surface? -- 4. General Governing Equation for the Transport of the Mass Flux -- 5. Physical Explanations the Convective Transport Equation of the Mass Flux -- 5.1. The Role of Mass Diffusion in Convective Transport of the Mass Flux -- 5.2. The Right Position of DAB.
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5.3. The Role of Velocity in Convective Mass Transfer -- 5.4. The Role of Velocity Gradient in Convective Mass Transfer -- 5.5. What Kind Process Does Occur on the Wall Surface? -- Summary -- References -- Chapter 2 -- Convective Transport Equation for the Momentum Flux and Energy Dissipation in Fluid Flow -- Abstract -- Nomenclature -- Special Characters -- Superscripts -- Subscripts -- 1. General Governing Equation for the Transport of the Momentum Flux -- 2. Physical Explanations the Convective Transport Equation of the Momentum Flux -- 2.1. The Role of Diffusion in Convective Transport of the Momentum Flux -- 2.2. The Right Position of ν -- 2.3. The Role of Velocity in Convective Transport of the Momentum Flux -- 2.4. The Role of Velocity Gradient in Convective Transport of the Momentum Flux -- 2.5. The Vorticity Has a Special Contribution to the Transport of the Momentum Flux -- 2.6. What Kind Process Does Occur on the Wall Surface? -- 2.7. The Momentum Flux Transported in Fully Developed Two Dimensional Channel Flow is a Diffusion Process -- 3. The Procedures and Agents of Energy Dissipation in Different Directions in In-Compressible Fluid Flow -- 3.1. Energy Equations Related with Flow -- 3.2. Conflict of Energy Dissipation in Turbulence Flow -- 3.3. Agent in Overall Energy Dissipation Procedure -- 4. Physical Views on Analogies between the Momentum Flux, the Heat Flux and the Mass Flux Transports -- Summary -- Appendix: Process to Get the Convective Transport Equation of the Momentum Flux in Cartesian Coordinate -- References -- Chapter 3 -- Velocity and Its Gradient Contributions to the Transport of the Heat Flux in Laminar Convection of Circular Tube and Channel -- Abstract -- Nomenclature -- Special Characters -- Subscripts -- 1. Explicit Form of Convective Transport Equation of the Heat Flux in Cylinder Coordinate.
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2. Explicit Form of Convective Transport Equation of the Heat Flux in Cartesian Coordinate -- 3. In Developing Flow Region -- 3.1. Circular Tube -- 3.1.1. On the Wall Surface -- 3.1.2. In Flow Region -- 3.2. Channel -- 3.2.1. On the Wall Surface -- 3.2.2. In Flow Region -- 4. In Fully Developed Flow Region -- 4.1. Circular Tube -- 4.1.1. On the Wall Surface -- 4.1.2. In Flow Region -- 4.2. Channel -- 4.2.1. On the Wall Surface -- 4.2.2. Inside the Flow -- Summary -- Appendix: Numerical Method -- A1. Circular Tube -- A2. Channel Formed by Two Parallel Plain Planes -- References -- Chapter 4 -- Heat Transfer Enhancement Mechanism Uncovered by the Convective Transport of the Heat Flux in a Channel with Vortex Generators and in a Twisted Elliptic Tube -- Abstract -- Nomenclature -- Special Characters -- Subscripts -- 1. Heat Transfer Enhancement Characteristics Realized by Longitudinal Vortex Generators -- 1.1. Local Nusselt Number Nulocal Characteristics -- 1.2. The Span Average Nusselt Number -- 2. Heat Transfer Enhancement Characteristics Realized by Twisting of Elliptical Tube -- 3. Parameters Definitions -- 4. The Enhancement of the Transport of the Heat Flux in Channel with Vortex Generators -- 4.1. The Field Characteristics of the Contributions -- 4.1.1. The Vector Fields of Wc/ΔT, We/ΔT, (Wc+We)/ΔT under UWT -- 4.1.2. The Vector Fields of Wc/ΔT, We/ΔT, (Wc+We)/ΔT under UWHF -- 4.2. The Local Velocity and Velocity Gradient Contributions -- 4.3. The Span Average the Velocity and Velocity Gradient Contributions -- 4.4. The Convective Heat Transfer Enhancement Mechanisms Enforced by Longitudinal Vortices -- 5. The Enhancement Mechanism of the Transport of the Heat Flux in Twisted Elliptic Tube -- 5.1. The Field Characteristics of the Contributions -- 5.1.1. The Vector Fields of Wc/ΔT, We/ΔT, (Wc+We)/ΔT and q/ΔT under UWT.
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5.1.2. The Vector Fields of Wc/ΔT, We/ΔT, (Wc+We)/ΔT and q/ΔT under UWHF -- 5.2. The Local Velocity and Velocity Gradient Contributions -- 5.2.1. The Contributions to the Transport of q∇ξ on the Inspected Lines -- 5.2.2. The Contributions to the Transport of q∇η on the Inspected Lines -- 5.2.3. The Contributions to the Transport of q∇ζ on the Inspected Lines -- 5.3. The Direction Averaged Contribution Characteristics -- 5.3.1. The Contribution to the Transport of q∇ξ Averaged along the ξ Direction -- 5.3.2. The Contribution to Transport of q∇ξ Averaged along the η Direction -- 5.3.3. The Contribution to the Transport of q∇η Averaged along the η Direction -- 5.3.4. The Contribution to the Transport of q∇ζ Averaged along the η Direction -- 5.4. The Convective Heat Transfer Enhancement Mechanisms Enforced by Twisting of Elliptic Tube -- Summary -- 1. The Channel with Vortex Generators Mounted on the Bottom Surface -- 2. The Twisted Elliptic Tube -- 3. The Common Characteristics -- Appendix: Numerical Method -- A1. Problems Studied and Their Mathematics Formulations -- A2. Numerical Method and Its Validation -- References -- Chapter 5 -- The Role of Secondary Flow in Convective Heat Transfer Uncovered by Convective Transport Equation of the Heat Flux -- Abstract -- Nomenclature -- Special Characters -- Subscripts -- 1. Description of the Role of Secondary Flow in Convective Transport of the Heat Flux -- 2. The Role of Secondary Flow in Developing Fluid Flow and Convective Heat Transfer -- 2.1. Laminar Developing Fluid Flow and Heat Transfer in a Channel -- 2.1.1. The Contributions to the Transport of qx -- 2.1.2. The Contributions to the Transport of qy -- 2.1.3. Secondary Flow Enhances the Contributions of the Main Flow to the Transport of the Heat Fluxes -- 2.2. Laminar Developing Fluid Flow and Convective Heat Transfer in Square Duct.
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2.2.1. The Contribution Fields -- 2.2.2. The Contributions to the Transport of qx -- 2.2.3. The Contributions to the Transport of qy -- 2.2.4. Secondary Flow Enhances the Contributions of the Main Flow to the Transport of the Heat Fluxes -- 2.3. Laminar Developing Fluid Flow and Convective Heat Transfer in a Tube -- 2.3.1. The Contributions to the Transport of qr -- 2.3.2. The Contributions to the Transport of qz -- 2.3.3. Secondary Flow Enhances the Contributions of the Main Flow to the Transport of the Heat Fluxes -- 3. The Role Secondary Flow in Fluid Flow and Convective Heat Transfer in a Tube with Twisted Tape Insert -- 3.1. The Contribution Field Information -- 3.2. Local Characteristics along the Line Intersected by η = const and ζ = const -- 3.2.1. Contribution to the Transport of qξ -- 3.2.2. Contribution to the Transport of qη -- 3.2.3. Contribution to the Transport of qζ -- 3.3. Local Characteristics along the Lines Intersected by ξ = const and ζ = const -- 3.3.1. Contribution to the Transport of qξ -- 3.3.2. Contribution to the Transport of qη -- 3.3.3. Contribution to the Transport of qζ -- 3.4. Averaged Contributions along the Line Intersected by η = const and ζ = const -- Summary -- Appendix: Numerical Model and Method -- A1. The Geometrical Model -- A2. Physical Model -- A3. Numerical Method -- A4. Validation of Numerical Method -- References -- Chapter 6 -- The Role of Vorticity in Convective Heat Transfer Uncovered by Convective Transport Equation of the Heat Flux -- Abstract -- Nomenclature -- Special Characters -- Subscripts -- 1. Description of the Role of Vorticity in Convective Transport of the Heat/Mass Flux -- 2. The Contribution of Vorticity to the Transport of the Heat Flux in the Channel Mounted VGS on the Bottom Plane -- 2.1. The Characteristics of Vorticity Generated by Rectangle Vortex Generators.
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2.2. The Field Characteristics of the Contributions.
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