Cover image for Fundamentals of the finite element method for heat and fluid flow
Title:
Fundamentals of the finite element method for heat and fluid flow
Personal Author:
Publication Information:
Hoboken, NJ : John Wiley & Sons, 2004
ISBN:
9780470847886

Available:*

Library
Item Barcode
Call Number
Material Type
Item Category 1
Status
Searching...
30000010060071 QC20.7.F56 L48 2004 Open Access Book Book
Searching...
Searching...
30000010070472 QC20.7.F56 L48 2004 Open Access Book Book
Searching...

On Order

Summary

Summary

Heat transfer is the area of engineering science which describes the energy transport between material bodies due to a difference in temperature. The three different modes of heat transport are conduction, convection and radiation. In most problems, these three modes exist simultaneously. However, the significance of these modes depends on the problems studied and often, insignificant modes are neglected.

Very often books published on Computational Fluid Dynamics using the Finite Element Method give very little or no significance to thermal or heat transfer problems. From the research point of view, it is important to explain the handling of various types of heat transfer problems with different types of complex boundary conditions. Problems with slow fluid motion and heat transfer can be difficult problems to handle. Therefore, the complexity of combined fluid flow and heat transfer problems should not be underestimated and should be dealt with carefully.

This book:

Is ideal for teaching senior undergraduates the fundamentals of how to use the Finite Element Method to solve heat transfer and fluid dynamics problems Explains how to solve various heat transfer problems with different types of boundary conditions Uses recent computational methods and codes to handle complex fluid motion and heat transfer problems Includes a large number of examples and exercises on heat transfer problems In an era of parallel computing, computational efficiency and easy to handle codes play a major part. Bearing all these points in mind, the topics covered on combined flow and heat transfer in this book will be an asset for practising engineers and postgraduate students. Other topics of interest for the heat transfer community, such as heat exchangers and radiation heat transfer, are also included.


Table of Contents

Preface.
1 Introduction.
1.1 Importance of Heat Transfer
1.2 Heat Transfer Modes
1.3 The Laws of Heat Transfer
1.4 Formulation of Heat Transfer Problems
1.4.1 Heat transfer from a plate exposed to solar heat flux
1.4.2 Incandescent lamp
1.4.3 Systems with a relative motion and internal heat generation
1.5 Heat Conduction Equation
1.6 Boundary and Initial Conditions
1.7 Solution Methodology
1.8 Summary
1.9 Exercise
Bibliography
2 Some Basic Discrete Systems.
2.1 Introduction
2.2 Steady State Problems
2.2.1 Heat flow in a composite slab
2.2.2 Fluid flow network
2.2.3 Heat transfer in heat sinkscombined conduction-convection
2.2.4 Analysis of a heat exchanger
2.3 Transient Heat Transfer ProblemPropagation Problem
2.4 Summary
2.5 Exercise
Bibliography
3 The Finite Elemen t Method.
3.1 Introduction
3.2 Elements and Shape Functions
3.2.1 One-dimensional linear element
3.2.2 One-dimensional quadratic element
3.2.3 Two-dimensional linear triangular elements
3.2.4 Area coordinates
3.2.5 Quadratic triangular elements
3.2.6 Two-dimensional quadrilateral elements
3.2.7 Isoparametric elements
3.2.8 Three-dimensional elements
3.3 FormulationElement Characteristics
3.3.1 Ritz methodHeat balance integral method-Goodman's method
3.3.2 Rayleigh-Ritz methodVariational method
3.3.3 The method of weighted residuals
3.3.4 Galerkin finite element method
3.4 Formulation for the Heat Conduction Equation
3.4.1 Variational approach
3.4.2 The Galerkin method
3.5 Requirements for Interpolation Functions
3.6 Summary
3.7 Exercise
Bibliography
4 Steady State Heat Conduction in One Dimension.
4.1 Introduction
4.2 Plane Walls
4.2.1 Homogeneous wall
4.2.2 Composite wall
4.2.3 Finite element discretization
4.2.4 Wall with varying cross-sectional area
4.2.5 Plane wall with a heat source: solution by linear elements
4.2.6 Plane wall with a heat source: solution by quadratic elements
4.2.7 Plane wall with a heat source: solution by modified quadratic equationsstatic condensation
4.3 Radial Heat Flow in a Cylinder
4.3.1 Cylinder with heat source
4.4 Conduction-Convection Systems
4.5 Summary
4.6 Exercise
Bibliography
5 Steady State Heat Conduction in Multi-dimensions.
5.1 Introduction
5.2 Two-dimensional Plane Problems
5.2.1 Triangular elements
5.3 Rectangular Elements
5.4 Plate with Variable Thickness
5.5 Three-dimensional Problems
5.6 Axisymmetric Problems
5.6.1 Galerkin's method for linear triangular axisymmetric elements
5.7 Summary
5.8 Exercise
Bibliography
6 Transient Heat Conduction Analysis.
6.1 Introduction
6.2 Lumped Heat Capacity System
6.3 Numerical Solution
6.3.1 Transient governing equations and boundary and initial conditions
6.3.2 The Galerkin method
6.4 One-dimensional Transient State Problem
6.4.1 Time discretization using the Finite Difference Method (FDM
6.4.2 Time discretization using the Finite Element Method (FEM
6.5 Stability
6.6 Multi-dimensional Transient Heat Conduction
6.7 Phase Change Problems-Solidification and Melting
6.7.1 The governing equations
6.7.2 Enthalpy formulation
6.8 Inverse Heat Conduction Problems
6.8.1 One-dimensional heat conduction
6.9 Summary
6.10 Exercise
Bibliography
7 Convection Heat Transfer 173
7.1 Introduction
7.1.1 Types of fluid-motion-assisted heat transport
7.2 Navier-Stokes Equations
7.2.1 Conservation of mass or continuity equation
7.2.2 Conservation of momentum
7.2.3 Energy equation
7.3 Non-dimensional Form of the Governing Equations
7.3.1 Forced convection
7.3.2 Natural convection (Buoyancy-driven convection
7.3.3 Mixed convection
7.4 The Transient Convection-diffusion Problem
7.4.1 Finite element solution to convection-diffusion equation
7.4.2 Extension to multi-dimensions
7.5 Stability Conditions
7.6 Characteristic-based Split (CBS) Scheme
7.6.1 Spatial discretization
7.6.2 Time-step calculation
7.6.3 Boundary and initial conditions
7.6.4 Steady and transient solution methods
7.7 Artificial Compressibility Scheme
7.8 Nusselt Number, Drag and Stream Function
7.8.1 Nusselt number
7.8.2 Drag calculation
7.8.3 Stream function
7.9 Mesh Convergence
7.10 Laminar Isothermal Flow
7.10.1 Geometry, boundary and initial conditions
7.10.2 Solution
7.11 Laminar Non-isothermal Flow
7.11.1 Forced convection heat transfer
7.11.2 Buoyancy-driven convection heat transfer
7.11.3 Mixed convection heat transfer
7.12 Introduction to Turbulent Flow
7.12.1 Solution procedure and result
7.13 Extension to Axisymmetric Problems
7.14 Summary
7.15 Exercise
Bibliography
8 Convection in Porous Media.
8.1 Introduction
8.2 Generalized Porous Medium Flow Approach
8.2.1 Non-dimensional scales
8.2.2 Limiting cases
8.3 Discretization Procedure
8.3.1 Temporal discretization
8.3.2 Spatial discretization
8.3.3 Semi- and quasi-implicit forms
8.4 Non-isothermal Flows
8.5 Forced Convection
8.6 Natural Convection
8.6.1 Constant porosity medium
8.7 Summary
8.8 Exercise
Bibliography
9 Some Examples of Fluid Flow and Heat Transfer Problems.
9.1 Introduction
9.2 Isothermal Flow Problems
9.2.1 Steady state problems
9.2.2 Transient flow
9.3 Non-isothermal Benchmark Flow Problem
9.3.1 Backward-facing step
9.4 Thermal Conduction in an Electronic Package
9.5 Forced Convection Heat Transfer From Heat Sources
9.6 Summary
9.7 Exercise
Bibliography
10 Implementation of Computer Code.
10.1 Introduction
10.2 Preprocessing
10.2.1 Mesh generation
10.2.2 Linear triangular element data
10.2.3 Element size calculation
10.2.4 Shape functions and their derivatives
10.2.5 Boundary normal calculation
10.2.6 Mass matrix and mass lumping
10.2.7 Implicit pressure or heat conduction matrix
10.3 Main Unit
10.3.1 Time-step calculation
10.3.2 Element loop and assembly
10.3.3 Updating solution
10.3.4 Boundary conditions
10.3.5 Monitoring steady state
10.4 Postprocessing
10.4.1 Interpolation of data
10.5 Summary
Bibliography
A Green's Lemma.
B Integration Formulae.
B.1 Linear Triangles
B.2 Linear Tetrahedron
C Finite Element Assembly Procedure.
D Simplified Form of the Navier-Stokes Equations.
Index.