Comsol heat transfer models / Layla S. Mayboudi, PhD.

Format:

Book

Author/Creator:

Mayboudi, Layla S., author.

Series:

Multiphysics Modeling Series

Language:

English

Subjects (All):

Heat.

Physical Description:

1 online resource (402 pages)

Edition:

1st ed.

Place of Publication:

Dulles, Virginia ; Boston, Massachusetts ; New Delhi : Mercury Learning and Information, [2020]

Summary:

This book guides the reader through the process of model creation for heat transfer analysis with the finite element method. Describing thermal imaging experiments that demonstrate how such models can be validated, it presents application examples, such as heating water in a kettle, to basement insulation, a heated seat, molten rock, pipe flow, and an innovative extended surface. A companion disc provides the files so models can be run (using COMSOL or other software) in order to observe real-world behavior of the applications.

Contents:

COVER

TITLE PAGE

CONTENTS

PREFACE

ACKNOWLEDGMENTS

1 INTRODUCTION

1.1 Fire

1.2 Concept of Heat through the Ages

1.3 Temperature Measurements through the Ages

1.4 Temp erature and Matter

1.5 Thermal, Flow, and Test Management

2 MODELING SYSTEMS

2.1 Analog Computing through the Ages

2.2 Model Categorization

2.3 Analytical Models

2.4 Numerical Models

2.5 Verification and Validation

2.6 Physics Governing Equations

2.7 Modeling with Custom Programs versus Commercial Software

2.8 Modeling Using Commercial Software Packages

3 HEAT TRANSFER AND FLOW THERMAL SCIENCES

3.1 Thermal Properties of Materials

3.2 Thermal Analysis of Materials

3.3 Modes of Heat Transfer

3.4 Energy Conservation

3.5 Example- Heat Transfer in a Sandwich

4 FINITE ELEMENT ANALYSIS

4.1 Material Properties

4.2 Geometry

4.3 Analysis Types

4.4 Boundary and Initial Conditions

4.5 Mesh Size and Time Step

4.6 Solution Control and Convergence

5 COMSOL MULTIPHYSICS MODELS

5.1 Heat Transfer Modeling Considerations

5.2 Creating a Model in COMSOL Multiphysics

5.3 Creating Geometry

5.4 Sensitivity Analysis

5.5 Modeling Process Overview for COMSOL Multiphysics

5.6 Case Studies

6 CASE STUDY 1-A CUP OF HOT TEA

6.1 Analytical Model of Water and Spoon

6.2 2D Axisymmetric FEM Model of Water and Spoon- Conduction Mode

6.3 2D Axisymmetric FEM Model of Water and Spoon-Conjugate Heat Transfer

6.4 3D FEM Model of a Cup of Hot Tea

6.5 Thermal Imaging Observations of a Cup of Hot Tea

7 CASE STUDY 2-BASEMENT INSULATION

7.1 Problem Definition

7.2 Scenario 1-No Heat Source

7.3 Scenario 2-Heat Source: Constant Heat Source Rate, Transient, Multilayer

7.4 Scenario 3-Heat Source: Constant Boundary Heat Rate, Transient, Multilayer.

7.5 Scenario 4-Heat Source: Constant Boundary Heat Rate, Stationary, Multilayer

7.6 Scenario 5-Heat Source: Constant Boundary Heat Rate, Stationary, Single Layer

7.7 Scenario 6-Heat Source: Constant Interior Temperature, Stationary, Single Layer

7.8 Scenario 7-Constant Exterior-Interior Temperatures, Stationary, Single Layer

8 CASE STUDY 3-HEATING WATER INSIDE A KETTLE

8.1 Problem Definition

8.2 Kettle Geometry

8.3 Kettle Physics Selection

8.4 Kettle Materials, Boundary Conditions, and Meshing

8.5 Kettle Solution Results

8.6 Exercise-Kettle Model, Heat Source: Constant Temperature

9 CASE STUDY 4-HEATED SEAT

9.1 Problem Definition

9.2 Heated Seat Thermal Model

9.3 Exercise-Adding the Human Body to the Heated Seat Model

10 CASE STUDY 5-FACE MASK

10.1 Problem Definition

10.2 Face Mask Geometry

10.3 Face Mask Materials, Physics, and Meshing

10.4 Face Mask Solution Results

11 CASE STUDY 6-SOLIDIFIED MOLTEN ROCK

11.1 Problem Definition

11.2 Molten Rock Model Setup

11.3 Scenario 1-Molten Rock Solution Results

11.4 Scenario 2-Varying Molten Temperature

12 CASE STUDY 7-ROTINI FIN, A FIN WITH A TWIST

12.1 Problem Definition

12.2 Rotini Fin Solution Results

13 CASE STUDY 8-FLOW INSIDE A PIPE

13.1 Pipeline Applications

13.2 Exercise 1-Constant Wall Temperature

13.3 Exercise 2-Oil and Gas Pipelines and Analytic Functions

13.4 Exercise 3-Converging-Diverging Nozzle

14 GOOD PRACTICES

15 LEAN SIX SIGMA IMPLEMENTATION

16 CONCLUSION

16.1 A Universe in a Cup of Tea

APPENDIX A GLOSSARY

APPENDIC B LIST OF SYMBOLS

B.1 Variables

B.2 Greek Symbols

B.3 Subscripts

APPENDIX C LIST OF FIGURES

APPENDIX D LIST OF TABLES

BIBLIOGRAPHY

INDEX.

Notes:

Description based on print version record.

Description based on publisher supplied metadata and other sources.

ISBN:

9781683922124

1683922123

OCLC:

1507889176