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Modern Numerical Methods for Fluid Flow
File : pdf, 600 KB, 152 pages
Phillip Colella & Elbridge Gerry Puckett Class Notes,
University of California, Berkeley
TOC
1. Finite difference methods for linear scalar problems
1.1 Consistency, stability, and convergence
1.2 The Von Neumann stability analysis
1.3 Some simple finite difference schemes
1.3.1 Upwind Differencing
1.3.2 Downwind Differencing
1.3.3 Centered Differencing
1.3.4 The Two-Step Lax-Wendroff Scheme
1.4 Upwind schemes and the geometric interpretation of finite differences
1.5 Fourier analysis and accuracy
1.5.1 Amplitude error
1.5.2 Phase errors
1.6 The modified equation
1.7 Discontinuities
1.7.1 Max-norm boundedness and Godunov’s Theorem
1.8 Weak solutions, conservative finite difference methods and the Lax-Wendroff
1.9 Limiters
1.9.1 Flux-corrected transport
1.9.2 Geometric limiters
1.9.3 Design criteria for schemes with limiters
2. Nonlinear scalar problems
2.1 Weak solutions of...
March 6, 2010
Electromagnetic Theory and Computation – A Topological Approach
File : pdf, 1.8 MB, 288 pages
TOC
Introduction
Chapt 1. From Vector Calculus to Algebraic Topology
1A Chains, Cochains and Integration
1B Integral Laws and Homology
1C Cohomology and Vector Analysis
1D Nineteenth-Century Problems Illustrating the First and Second Homology Groups
1E Homotopy Versus Homology and Linking Numbers
1F Chain and Cochain Complexes
1G Relative Homology Groups
1H The Long Exact Homology Sequence
1I Relative Cohomology and Vector Analysis
1J A Remark on the Association of Relative Cohomology Groups with Perfect Conductors
Chapt 2. Quasistatic Electromagnetic Fields
2A The Quasistatic Limit Of Maxwell's Equations
2B Variational Principles For Electroquasistatics
2C Variational Principles For Magnetoquasistatics
2D Steady Current Flow
2E The Electromagnetic Lagrangian and Rayleigh Dissipation Functions
Chapt 3. Duality...
March 4, 2010
Damage Tolerance Assessment Handbook VOl 1: Introduction Fracture Mechanics, Fatigue Crack Propagation
File : pdf, 5 MB, 164 pages
TOC
1. INTRODUCTION
1.1 Historical Perspective
1.2 Results of Air Force Survey
1.3 Comparison of Old and New Approaches
1.3.1 Fatigue Safe-Life Approach
1.3.2 Damage Tolerance Assessment (DTA) Approach
2. FRACTURE MECHANICS
2.1 Stress Concentration, Fracture and Griffith Theory
2.1.1 Fracture Modes
2.2 Extension of Linear Elastic Fracture Mechanics to Metals
2.2.1 Plastic Zone Size and the Mises-Hencky Yield Criterion
2.3 Fracture Toughness Testing
2.3.1 Thickness Effects
2.3.2 Temperature Effects
2.4 Failure in the Presence of Large-Scale Yielding
2.4.1 Resistance Curves
2.4.1.1 Graphical Construction of Thin-Section Strength Plots
2.4.2 The Net Section Failure Criterion
2.4.2.1 Failure Mode Determination and the Feddersen Diagram
2.4.3 Crack Opening Displacement
2.4.4 J-Integral
2.4.5 Practical Developments
2.4.6 Strain Energy Density Criterion
2.4.7 Plastic...
March 3, 2010
Handbook of Analytical Methods for Textile Composites
File : pdf, 7.7 MB, 176 pages
TOC
1. INTRODUCTION
1.1 Scope
1.2 Layout of the Handbook
1.3 Historical Origins
1.4 Internet Access
2. OVERVIEW OF TEXTILES
2.1 Textile Processes
2.1.1 Categorizations
2.1.1.1 Dimensionality
2.1.1.2 Quasi-Laminar and Nonlaminar Textiles
2.1.2 Preforms
2.1.2.1 Weaving
2.1.2.2 Flat Braiding from Cylindrical Mandrels
2.1.2.3 31) Braiding
2.1.2.4 Uniweaves
2.1.2.5 Warp Knits
2.1.2.6 Stitching
2.1.3 Molding
2.2 Materials
2.3 The Geometry of Textile Reinforcement
2.3.1 Ideal geometry
2.3.1.1 Unit Cells
2.3.1.2 2D Weaves
2.3.1.3 2D Braids
2.3.1.6 3D Interlock Weaves
2.3.1.7 3D Braids
2.3.1.8 0rthogonal Nonwoven Composites
2.3.2 The relation of volume fraction and fabric geometry to process parameters
2.3.3 Irregularity
2.4 Integral Structures made by Textile Processes
3. THE CHOICE BETWEEN TEXTILES AND TAPE LAMINATES
3.1 Handling and FabricabiHty
3.2 Consistency of Fiber Content
3.3 Stiffness
3.4 In-Plane Strength
3.4.1 2D...
March 2, 2010
Composite Materials Handbook Vol 1. Polymer Matrix Composites Guidelines for Characterization of Structural Materials
File : pdf, 4.4 MB, 586 pages
TOC
CHAPTER 1 OBJECTIVES
1.1 INTRODUCTION
1.2 PURPOSE
1.3 SCOPE
1.3.1 Strength properties and allowables data
1.3.2 Volume 1: Guidelines for Characterization of Structural Materials
1.3.3 Volume 2: Material Properties
1.3.4 Volume 3: Materials Usage, Design, and Analysis Guidelines
1.4 USE OF THE DOCUMENT AND LIMITATIONS
1.4.1 Roadmaps for use of Volumes 1 - 3
1.4.2 Source of information
1.4.3 Use of data and guidelines in applications
1.4.4 Strength properties and allowables terminology
1.4.5 Use of references
1.4.6 Use of tradenames and product names
1.4.7 Toxicity, health hazards, and safety
1.4.8 Ozone depleting chemicals
1.5 APPROVAL PROCEDURES
1.6 SYMBOLS, ABBREVIATIONS, AND SYSTEMS OF UNITS 18
1.6.1 Symbols and abbreviations
1.6.2 System of units
1.7 DEFINITIONS
CHAPTER 2...
February 27, 2010
The Performance of Pile Driving Systems
File : pdf, 6 MB, 95 pages
TOC
1. INTRODUCTION
2. THE DRIVING SYSTEM
a. Introduction
b. Lead Systems
(1) The Swinging Lead
(2) The Fixed Lead
(3) The Semifixed Lead
(4) The Offshore Lead
c. Maintaining Pile Position
d. The Helmet
e. The Hammer Cushion
f. The Pile Cushion
3. SINGLE-ACTINGE XTERNALC OMBUSTIONH AMMERS
a. Introduction
b. Drop Hammers
CO Single-Acting Air/Steam Hammers
d. Single-Acting Hydraulic Hammers
4. DOUBLE-ACTINGE XTERNALC OMBUSTIONH AMMERS
a. General Description
b. Operation of Double-Acting Air/Steam Hammers
Co General Operation of Double-Acting Air/Steam Hammers
d. Advantage of Double-Acting Air/Steam Hammers
e. Disadvantages of Double-Acting Air/Steam Hammers
f. Checklist for Double-Acting Air/Steam Hammers
g. Double-Acting Hydraulic Hammers
5. INTERNAL-COMBUSTION HAMMERS - SINGLE ACTING
a. General Description
b. Open-End Diesel Hammer Operation
C. Performance Characteristics of Open-End...
February 25, 2010
Ice Engineering
File : pdf, 33 MB, 475 pages
TOC
Chapt 1
Introduction
Purpose
Applicability
Explanation of Terms Ice impacts on Corps activities
PART I: ICE PROPERTIES, PROCESSES, AND PROBLEM
Chapt 2 Review of Ice Processes and Properties
Introduction Physical Properties of Ice and Fresh Water
Mechanical Properties of Freshwater Ice
Frazil Ice
Thermal Ice Growth Dynamic Ice Cover Formation
Ice Cover Breakup
Chapt 3 Ice Control for Flood Damage Reduction and Hydropower
Section I. Nonstructural Ice Control
Introduction Mechanical Measures to Reduce the Risk of Ice Jam Formation
Thermal Measures to Reduce the Risk of Ice Jam Formation
Chemical Measures to Reduce the Risk of Ice Jam Formation
Breaking Ice Jams Cost and Performance of Nonstructural Measures
Case Study
Discussion
Section II. Structural...
February 23, 2010
The Geometry and Topology of Three-Manifolds
File : pdf, 26.9 MB, 259 pages
TOC
1. Geometry and three-manifolds
2. Elliptic and hyperbolic geometry
2.1. The Poincar´e disk model
2.2. The southern hemisphere
2.3. The upper half-space model
2.4. The projective model
2.5. The sphere of imaginary radius
2.6. Trigonometry
3. Geometric structures on manifolds
3.1. A hyperbolic structure on the figure-eight knot complement
3.2. A hyperbolic manifold with geodesic boundary
3.3. The Whitehead link complement
3.4. The Borromean rings complement
3.5. The developing map
3.8. Horospheres
3.9. Hyperbolic surfaces obtained from ideal triangles
3.10. Hyperbolic manifolds obtained by gluing ideal polyhedra
4. Hyperbolic Dehn surgery
4.1. Ideal tetrahedra in H3
4.2. Gluing consistency conditions
4.3. Hyperbolic structure on the figure-eight knot complement
4.4. The completion of hyperbolic three-manifolds obtained...
February 22, 2010
Highways in the River Environment
File : pdf, 14 MB, 683 pages
TOC
Chapter 1 : Introduction
1.1 Classification of River Crossings and Encroachments
1.1.1 Types of Encroachment
1.1.2 Geometry of Bridge Crossings
1.2 Dynamics of Natural Rivers and Their Tributaries
1.2.1 Historical Evidence of the Natural Instability of Fluvial Systems
1.2.2 Introduction to River Hydraulics and River Response
1.3 Effects of Highway Construction on River Systems
1.4 The Effects of River Development on Highway Encroachments
1.5 Technical Aspects
1.6 Future Technical Trends
Chapter 2 : Open Channel Flow Part I
2.1 Introduction
2.1.1 Definitions
2.2 Basic Principles
2.2.5 Hydrostatics
2.3 Steady Uniform Flow
2.3.1 Shear Stress and Velocity Distribution
2.3.2 Empirical Velocity Equations
2.3.3 Average Boundary Shear Stress
2.3.4 Energy and Momentum Coefficients for Rivers
2.4 Unsteady...
February 19, 2010
Voltage Stability Toolbox
Matlab Toolbox, File : zip, 4.7 MB
INTRODUCTION
Voltage Stability TOolbox, developed at Center for Electric Power Engineering, Drexel University is a powerful
software for studying the phenomena and mechanics of voltage instability. The computational and analytical
capabilities of bifurcation theory, and symbolic/graphical representation capabilities of MATLAB combined lead to
proven tool for analyzing voltage stability problem and providing intuitive information for power system planning,
operation, and control.
Voltage instability and collapse have become an increasing concern in planning, operation, and control of electric
power systems. In order to understand the phenomena and mechanics of voltage instability,a powerful and
user-friendly analysis tool is very helpful. Voltage Stability Toolbox (VST)...
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