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Design with Constructal Theory

ISBN-10: 0471998168

ISBN-13: 9780471998167

Edition: 2008

Authors: Adrian Bejan, Sylvie Lorente

List price: $165.00
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Description:

Invented by Adrian Bejan, the constructal theory of global optimization under local constraints explains in a simple manner the shapes that arise in nature. The theory is used to understand, calculate, and ultimately generate the irregular designs found in nature (trees, lightning, river deltas, etc.) and incorporate these designs in human-made systems to optimize the function of the system. Now, for the first time in a book, Bejan explains the concepts and applications of his theory, beginning with the basics and building to more and more complex systems for better student understanding.
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Book details

List price: $165.00
Copyright year: 2008
Publisher: John Wiley & Sons, Incorporated
Publication date: 9/9/2008
Binding: Hardcover
Pages: 552
Size: 7.50" wide x 9.25" long x 1.25" tall
Weight: 2.442
Language: English

About the Authors
Preface
List of Symbols
Flow Systems
Constructal Law, Vascularization, and Svelteness
Fluid Flow
Internal Flow: Distributed Friction Losses
Internal Flow: Local Losses
External Flow
Heat Transfer
Conduction
Convection
References
Problems
Imperfection
Evolution toward the Least Imperfect Possible
Thermodynamics
Closed Systems
Open Systems
Analysis of Engineering Components
Heat Transfer Imperfection
Fluid Flow Imperfection
Other Imperfections
Optimal Size of Heat Transfer Surface
References
Problems
Simple Flow Configurations
Flow Between Two Points
Optimal Distribution of Imperfection
Duct Cross Sections
River Channel Cross-Sections
Internal Spacings for Natural Convection
Learn by Imagining the Competing Extremes
Small Spacings
Large Spacings
Optimal Spacings
Staggered Plates and Cylinders
Internal Spacings for Forced Convection
Small Spacings
Large Spacings
Optimal Spacings
Staggered Plates, Cylinders, and Pin Fins
Method of Intersecting the Asymptotes
Fitting the Solid to the "Body" of the Flow
Evolution of Technology: From Natural to Forced Convection
References
Problems
Tree Networks for Fluid Flow
Optimal Proportions: T- and Y-Shaped Constructs
Optimal Sizes, Not Proportions
Trees Between a Point and a Circle
One Pairing Level
Free Number of Pairing Levels
Performance versus Freedom to Morph
Minimal-Length Trees
Minimal Lengths in a Plane
Minimal Lengths in Three Dimensions
Minimal Lengths on a Disc
Strategies for Faster Design
Miniaturization Requires Construction
Optimal Trees versus Minimal-Length Trees
75 Degree Angles
Trees Between One Point and an Area
Asymmetry
Three-Dimensional Trees
Loops, Junction Losses and Fractal-Like Trees
References
Problems
Configurations for Heat Conduction
Trees for Cooling a Disc-Shaped Body
Elemental Volume
Optimally Shaped Inserts
One Branching Level
Conduction Trees with Loops
One Loop Size, One Branching Level
Radial, One-Bifurcation and One-Loop Designs
Two Loop Sizes, Two Branching Levels
Trees at Micro and Nanoscales
Evolution of Technology: From Forced Convection to Solid-Body Conduction
References
Problems
Multiscale Configurations
Distribution of Heat Sources Cooled by Natural Convection
Distribution of Heat Sources Cooled by Forced Convection
Multiscale Plates for Forced Convection
Forcing the Entire Flow Volume to Work
Heat Transfer
Fluid Friction
Heat Transfer Rate Density: The Smallest Scale
Multiscale Plates and Spacings for Natural Convection
Multiscale Cylinders in Crossflow
Multiscale Droplets for Maximum Mass Transfer Density
References
Problems
Multiobjective Configurations
Thermal Resistance versus Pumping Power
Elemental Volume with Convection
Dendritic Heat Convection on a Disc
Radial Flow Pattern
One Level of Pairing
Two Levels of Pairing
Dendritic Heat Exchangers
Geometry
Fluid Flow
Heat Transfer
Radial Sheet Counterflow
Tree Counterflow on a Disk
Tree Counterflow on a Square
Two-Objective Performance
Constructal Heat Exchanger Technology
Tree-Shaped Insulated Designs for Distribution of Hot Water
Elemental String of Users
Distribution of Pipe Radius
Distribution of Insulation
Users Distributed Uniformly over an Area
Tree Network Generated by Repetitive Pairing
One-by-One Tree Growth
Complex Flow Structures Are Robust
References
Problems
Vascularized Materials
The Future Belongs to the Vascularized: Natural Design Rediscovered
Line-to-Line Trees
Counterflow of Line-to-Line Trees
Self-Healing Materials
Grids of Channels
Multiple Scales, Loop Shapes, and Body Shapes
Trees Matched Canopy to Canopy
Diagonal and Orthogonal Channels
Vascularization Fighting against Heating
Vascularization Will Continue to Spread
References
Problems
Configurations for Electrokinetic Mass Transfer
Scale Analysis of Transfer of Species through a Porous System
Model
Migration through a Finite Porous Medium
Ionic Extraction
Constructal View of Electrokinetic Transfer
Reactive Porous Media
Optimization in Time
Optimization in Space
References
Mechanical and Flow Structures Combined
Optimal Flow of Stresses
Cantilever Beams
Insulating Wall with Air Cavities and Prescribed Strength
Mechanical Structures Resistant to Thermal Attack
Beam in Bending
Maximization of Resistance to Sudden Heating
Steel-Reinforced Concrete
Vegetation
Root Shape
Trunk and Canopy Shapes
Conical Trunks, Branches and Canopies
Forest
References
Problems
Quo Vadis Constructal Theory?
The Thermodynamics of Systems with Configuration
Two Ways to Flow Are Better than One
Distributed Energy Systems
Scaling Up
Survival via Greater Performance, Svelteness and Territory
Science as a Consructal Flow Architecture
References
Problems
Appendix
The Method of Scale Analysis
Method of Undetermined Coefficients (Lagrange Multipliers)
Variational Calculus
Constants
Conversion Factors
Dimensionless Groups
Nonmetallic Solids
Metallic Solids
Porous Materials
Liquids
Gases
References
Author Index
Subject Index