Modelling flows in environmental and civil engineering / F. Kerger ... [et al.], editors.

Format:

Book

Contributor:

Kerger, F.

Series:

Environmental science, engineering and technology series.

Novinka (Series)

Environmental science, engineering and technology

Novinka

Language:

English

Subjects (All):

Hydraulics--Mathematical models.

Hydraulics.

Physical Description:

x, 151 p. : ill.

Edition:

1st ed.

Place of Publication:

New York : Nova Science Publishers, Inc., c2010.

Language Note:

English

Summary:

Civil and environmental engineers make frequent use of mathematical models to handle free-surface hydraulics problems as simulation of river flow and flood prediction. This book underlines that the Drift-Flux Approach is very effective in simulating environmental flows for civil engineering.

Contents:

Intro

MODELLING FLOWS IN ENVIRONMENTAL AND CIVIL ENGINEERING

CONTENTS

PREFACE

ABSTRACT

INTRODUCTION

Chapter 1 THREE-DIMENSIONAL DRIFT-FLUX MODEL

1.1.LOCAL INSTANT FORMULATION OF THE MATHEMATICAL MODEL FOR TWO-PHASE FLOW

1.1.1.Laws of Conservation in Fluid Mechanics

Reynolds Transport Theorems

General Balance Equation

Continuity Equation

Momentum Equation

Remark on the Integral Form of the Equations

Constitutive Equations

Interfacial Balance Equation

1.1.2. Local Instant Formulation

Field Equations

Jump Conditions

1.1.3. Approaches to Solve Local Instant Formulation

1.2. TIME AVERAGING OF THE LOCAL INSTANT FORMULATION

1.2.1. Introduction to the Various Methods of Averaging

Eulerian Time Averaging

1.2.2. Eulerian Time Averaging: Mathematical Theory

Time Domain Analysis and Local Void Fraction

Definition of Time Average, Phase Average and Weighted Mean Value

Particular Mean Values

Fluctuating Component and Mean Values

Time Average of Derivative

1.2.3. Mixture Model Field Equations

Mixture Continuity Equation

Diffusion Equation

Mixture Momentum Conservation Equation

1.2.4. Drift-Flux Model Constitutive Laws

1.3. SIMPLIFICATIONS OF THE DRIFT-FLUX MODEL

1.3.1. Non Dimensional Form of the Drift-flux Model

1.3.2. Homogeneous Flow Model

Chapter 2 TWO-DIMENSIONAL DRIFT-FLUX MODEL

2.1. DIMENSIONAL ANALYSIS AND SIMPLIFICATION

2.2 DEPTH-INTEGRATED DRIFT-FLUX MODEL

2.2.1. Boundary Condition at the Free-Surface and the Bottom

General Formulation

Kinematic Boundary Conditions

Diffusive Boundary Conditions

Dynamic Boundary Conditions

2.2.2. Definition of the Depth-Average and Important Relations.

2.2.3. Depth-Integration of the Continuity Equation

2.2.4. Depth-Integration of the Diffusion Equation

2.2.5. Depth-Integration of the Momentum Equations

2.2.6.Convective Flux

Coefficient of Uneven Distribution

Covariance Correction Term

2.2.7. Pressure Distribution

2.3. MOMENT EQUATIONS OF THE DRIFT-FLUX MODEL

2.3.1. Moment of the Mixture Continuity Equation

2.3.2. Moment of the Diffusion Equation

2.3.3. Moment of the Momentum Equations

2.4. MULTI-LAYER DEPTH-INTEGRATED DRIFT-FLUX MODEL

2.4.1. Boundary Condition at the Interfaces Between Layers

2.4.2. Depth-Integration of the Continuity Equation over a Layer

2.4.3. Depth-Integration of the Diffusion Equation over a Layer

2.4.4. Depth-Integration of the Momentum Equation over a Layer

Chapter 3 ANALYSIS AND APPLICATION OF DEPTH-INTEGRATED DRIFT-FLUX EQUATIONS

3.1. SINGLE-PHASE FLOW

3.1.1. Particularized Model

3.1.2. Friction Correlations

3.1.3.Mathematical Properties of the System

3.1.4. Application Examples

Inundation Mapping

Dam Break Induced Flood Wave and Inundation Flow

3.2. AERATED FLOW AND AIR WATER INTERACTIONS

3.2.1. Particularized Model

3.2.2. Kinematic Constitutive Equation

3.2.3. Friction Correlation: Homogeneous Assumption

3.2.4. Mathematical Properties of the System

3.2.5.Application to Stepped Spillways

3.3. SEDIMENT TRANSPORT AND MORPHODYNAMICS

3.3.1. Particularized Model

3.3.2. Mathematical Properties of the System

3.3.3. Application Examples

Migration of a Trench Due To Suspended Load

Bed Load and Suspended Load Transport in a Large Reservoir

3.4. MOMENT EQUATIONS

3.4.1. Particularized model

3.4.2. Mathematical Properties of the System

3.4.3. Application Examples

CONCLUSION

REFERENCES

INDEX.

Blank Page.

Notes:

Bibliographic Level Mode of Issuance: Monograph

Includes bibliographical references (p. [131]-144) and index.

ISBN:

1-61668-490-9

OCLC:

923662694