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Fluid Mechanics for Chemical Engineers: with Microfluidics, CFD, and COMSOL Multiphysics 5, 3rd Edition

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Fluid Mechanics for Chemical Engineers: with Microfluidics, CFD, and COMSOL Multiphysics 5, 3rd Edition

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About

Features

  • Includes up-to-date tutorial coverage for using the popular COMSOL Multiphysics 5.2, plus ten new COMSOL examples
  • Covers these and other crucial topics: computing turbulent flows, bubble motion, two-phase flow, fluidization, microfluidics, electro-kinetic flow effects, and computational fluid dynamics
  • Provides more than 300 problems of graded difficulty
  • Builds on the first edition, honored as a Choice Magazine Outstanding Academic Title

Description

  • Copyright 2018
  • Dimensions: 8" x 10"
  • Pages: 816
  • Edition: 3rd
  • Book
  • ISBN-10: 0-13-471282-X
  • ISBN-13: 978-0-13-471282-6

James O. Wilkes has updated his expert hands-on fluid mechanics tutorial with a complete introduction to the popular COMSOL Multiphysics 5.2 software package, and ten new COMSOL 5.2 examples.

Building on the text that earned Choice Magazine’s prestigious Outstanding Academic Titles award, Wilkes offers masterful coverage of key fluid mechanics topics including computing turbulent flows, bubble motion, two-phase flow, fluidization, microfluidics, electro-kinetic flow effects, and computational fluid dynamics. Throughout, he presents more than 300 problems of incrementally greater difficulty, helping students build mastery through realistic practice.

Wilkes starts with a macroscopic approach, providing a solid foundation for sizing pumps and operating laboratory and field scale equipment. The first four chapters derive equations needed to size chemical plant equipment, including pipes in packed beds, pumping installation, fluid flow measurement, filtration, and cyclone separation. Next, he moves to a microscopic approach, introducing key principles for modeling more advanced systems and solving industry or graduate-level problems. These chapters start with a simple derivation of the Navier-Stokes equation (NSE), and then introduce assumptions for various flow geometries, helping students reduce equations for easy solution -- analytically, or numerically with COMSOL. Updated COMSOL examples include boundary layer flow, non-Newtonian flow, jet flow, lathe flow, lubrication, momentum diffusion, flow through an orifice plate parallel plate flow, turbulent flow, and more.

Sample Content

Online Sample Chapter

Fluid Mechanics for Chemical Engineers

Sample Pages

Download the sample pages (includes Chapter 1 and the Index)

Table of Contents

Preface xv

Part I: Macroscopic Fluid Mechanics 1

Chapter 1: Introduction to Fluid Mechanics 3

1.1 Fluid Mechanics in Chemical Engineering 3

1.2 General Concepts of a Fluid 3

1.3 Stresses, Pressure, Velocity, and the Basic Laws 5

1.4 Physical Properties—Density, Viscosity, and Surface Tension 10

1.5 Units and Systems of Units 21

1.6 Hydrostatics 26

1.7 Pressure Change Caused by Rotation 39

Problems for Chapter 1 42

Chapter 2: Mass, Energy, and Momentum Balances 55

2.1 General Conservation Laws 55

2.2 Mass Balances 57

2.3 Energy Balances 61

2.4 Bernoulli’s Equation 67

2.5 Applications of Bernoulli’s Equation 70

2.6 Momentum Balances 78

2.7 Pressure, Velocity, and Flow Rate Measurement 92

Problems for Chapter 2 96

Chapter 3: Fluid Friction in Pipes 120

3.1 Introduction 120

3.2 Laminar Flow 123

3.3 Models for Shear Stress 129

3.4 Piping and Pumping Problems 133

3.5 Flow in Noncircular Ducts 150

3.6 Compressible Gas Flow in Pipelines 156

3.7 Compressible Flow in Nozzles 159

3.8 Complex Piping Systems 163

Problems for Chapter 3 168

Chapter 4: Flow in Chemical Engineering Equipment 185

4.1 Introduction 185

4.2 Pumps and Compressors 188

4.3 Drag Force on Solid Particles in Fluids 194

4.4 Flow Through Packed Beds 204

4.5 Filtration 210

4.6 Fluidization 215

4.7 Dynamics of a Bubble-Cap Distillation Column 216

4.8 Cyclone Separators 219

4.9 Sedimentation 222

4.10 Dimensional Analysis 224

Problems for Chapter 4 230

Part II: Microscopic Fluid Mechanics 247

Chapter 5: Differential Equations of Fluid Mechanics 249

5.1 Introduction to Vector Analysis 249

5.2 Vector Operations 250

5.3 Other Coordinate Systems 263

5.4 The Convective Derivative 266

5.5 Differential Mass Balance 267

5.6 Differential Momentum Balances 271

5.7 Newtonian Stress Components in Cartesian Coordinates 274

Problems for Chapter 5 285

Chapter 6: Solution Of Viscous-Flow Problems 292

6.1 Introduction 292

6.2 Solution of the Equations of Motion in Rectangular Coordinates 294

6.3 Alternative Solution Using a Shell Balance 301

6.4 Poiseuille and Couette Flows in Polymer Processing 313

6.5 Solution of the Equations of Motion in Cylindrical Coordinates 325

6.6 Solution of the Equations of Motion in Spherical Coordinates 330

Problems for Chapter 6 336

Chapter 7: Laplace’s Equation, Irrotational and Porous-Media Flows 357

7.1 Introduction 357

7.2 Rotational and Irrotational Flows 359

7.3 Steady Two-Dimensional Irrotational Flow 364

7.4 Physical Interpretation of the Stream Function 367

7.5 Examples of Planar Irrotational Flow 369

7.6 Axially Symmetric Irrotational Flow 382

7.7 Uniform Streams and Point Sources 384

7.8 Doublets and Flow Past a Sphere 388

7.9 Single-Phase Flow in a Porous Medium 391

7.10 Two-Phase Flow in Porous Media 394

7.11 Wave Motion in Deep Water 400

Problems for Chapter 7 404

Chapter 8: Boundary-Layer and Other Nearly Unidirectional Flows 418

8.1 Introduction 418

8.2 Simplified Treatment of Laminar Flow Past a Flat Plate 419

8.3 Simplification of the Equations of Motion 426

8.4 Blasius Solution for Boundary-Layer Flow 429

8.5 Turbulent Boundary Layers 432

8.6 Dimensional Analysis of the Boundary-Layer Problem 434

8.7 Boundary-Layer Separation 437

8.8 The Lubrication Approximation 448

8.9 Polymer Processing by Calendering 457

8.10 Thin Films and Surface Tension 463

Problems for Chapter 8 466

Chapter 9: Turbulent Flow 480

9.1 Introduction 480

9.2 Physical Interpretation of the Reynolds Stresses 487

9.3 Mixing-Length Theory 488

9.4 Determination of Eddy Kinematic Viscosity and Mixing Length 491

9.5 Velocity Profiles Based on Mixing-Length Theory 493

9.6 The Universal Velocity Profile for Smooth Pipes 495

9.7 Friction Factor in Terms of Reynolds Number for Smooth Pipes 497

9.8 Thickness of the Laminar Sublayer 499

9.9 Velocity Profiles and Friction Factor for Rough Pipe 501

9.10 Blasius-Type Law and the Power-Law Velocity Profile 502

9.11 A Correlation for the Reynolds Stresses 503

9.12 Computation of Turbulence by the k–ε Method 506

9.13 Analogies Between Momentum and Heat Transfer 520

9.14 Turbulent Jets 524

Problems for Chapter 9 532

Chapter 10: Bubble Motion, Two-Phase Flow, and Fluidization 542

10.1 Introduction 542

10.2 Rise of Bubbles in Unconfined Liquids 542

10.3 Pressure Drop and Void Fraction in Horizontal Pipes 547

10.4 Two-Phase Flow in Vertical Pipes 554

10.5 Flooding 566

10.6 Introduction to Fluidization 570

10.7 Bubble Mechanics 572

10.8 Bubbles in Aggregatively Fluidized Beds 577

Problems for Chapter 10 586

Chapter 11: Non-Newtonian Fluids 602

11.1 Introduction 602

11.2 Classification of Non-Newtonian Fluids 603

11.3 Constitutive Equations for Inelastic Viscous Fluids 606

11.4 Constitutive Equations for Viscoelastic Fluids 626

11.5 Response to Oscillatory Shear 633

11.6 Characterization of the Rheological Properties of Fluids 636

Problems for Chapter 11 644

Chapter 12: Microfluidics and Electrokinetic Flow Effects 653

12.1 Introduction 653

12.2 Physics of Microscale Fluid Mechanics 654

12.3 Pressure-Driven Flow Through Microscale Tubes 655

12.4 Mixing, Transport, and Dispersion 656

12.5 Species, Energy, and Charge Transport 658

12.6 The Electrical Double Layer and Electrokinetic Phenomena 661

12.7 Measuring the Zeta Potential 676

12.8 Electroviscosity 678

12.9 Particle and Macromolecule Motion in Microfluidic Channels 678

Problems for Chapter 12 683

Chapter 13: An Introduction to Computational Fluid Dynamics and ANSYS Fluent 688

13.1 Introduction and Motivation 688

13.2 Numerical Methods 690

13.3 Learning CFD by Using ANSYS Fluent 699

13.4 Practical CFD Examples 703

References for Chapter 13 719

Chapter 14: COMSOL Multiphysics for Solving Fluid Mechanics Problems 720

14.1 COMSOL Multiphysics—An Overview 720

14.2 The Steps for Solving Problems in COMSOL 723

14.3 How to Run COMSOL 725

14.4 Variables, Constants, Expressions, and Units 741

14.5 Boundary Conditions 742

14.6 Variables Used by COMSOL 743

14.7 Wall Functions in Turbulent-Flow Problems 744

14.8 Streamline Plotting in COMSOL 747

14.9 Special COMSOL Features Used in the Examples 749

14.10 Drawing Tools 754

14.11 Fluid Mechanics Problems Solvable by COMSOL 756

14.12 Conclusion—Problems and Learning Tools 761

Appendix A: Useful Mathematical Relationships 762

Appendix B: Answers to the True/False Assertions 768

Appendix C: Some Vector and Tensor Operations 771

General Index 773

Comsol Multiphysics Index 782

The Authors 784

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