FLOOD01888

• County: Statewide
• Title: River Hydraulics
• Date: 10/15/1993
• Prepared By: US Army Corps of Engineers
• Floodplain - Doc Type: Educational/Technical/Reference Information

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DEPARTMENT OF THE ARMY
U.S. Army Corps of Engineers
Washington, DC 20314.1000

CECW-EH-Y

Manual
No. 1110-2-1416

EM 1110-2-1416

15 October 1993

Engineering and Design
RIVER HYDRAULICS

Subject

Paragraph

Chapter 1
Introduction

Pwpose ...................... I-I
Scope. . . . . . . . . . . . . . . . . . . . . . .. 1-2
Applicability ...... . . . . . . . . . . . .. 1-3
References .................... 1-4
Needs for River Hydraulic Studies . . .. 1-5
General Methods '" . . . . . . . . . . . .. 1-6

Organization ...... . . . . . . . . . . . .. 1-7

Chapter 2
Introduction to River Hydraulics

Introduction ................... 2-1
Flow Dimensionality Considerations. .. 2-2

Water Waves. . . . . . . . . . . . . . . . . .. 2-3
Flow Classification .............. 2-4
Regimes of Flow. . . . . . . . . . . . . . .. 2-5
Types of Flow . .. .. . .. .. . .. .. ... 2-6
Classification of Flow Profiles . . . . . .. 2-7
Basic Principles of River Hydraulics .. 2-8

Chapter 3
Formulating Hydraulic Studies
Initial Considerations . . . . . . . . . . . .. 3-1
Overview of Techniques for Conducting
River Hydraulics Studies ......... 3-2
Analysis of Hydraulic Components ... 3-3
Data Requirements . . . . . . . . . . . . . .. 3-4
Calibration of Hydraulic Analysis
Models . . . . . . . . . . . . . . . . . . . . .. 3-5
Guidelines for Analytical Model
Selection .................... 3-6

Table of Contents

Paga

I-I
I-I
I-I
I-I
I-I
I-I
1-2

2-1
2-1
2-2
2-4
2-7
2-7
2-9
2-9

3-1

3-1
3-4
3-4

3-11

3-13

Subject

Paragraph

Chapter 4
Multidimensional Flow Analysis
Introduction .................. 4,1
Limitations of One,Dimensional
Analysis . . . . . . . . . . . . . . . . . . .. 4-2
Equations of Flow ...... . . . . . . .. 4,3
Significance of Tenns ........... 4-4
Use of Equations of Flow. . . . . . . .. 4-5
Two-Dimensional Flow Conditions .. 4-6
Available Computer Programs . . . . .. 4-7
Data Requirements .............. 4-8
Data Development and Model
Calibration .................. 4-9
Example Applications . . . . . . . . . . .. 4-10

Chapter 5
Unsteady Flow
Introduction .................. 5,1

Section I
Introduction
Steady Versus Unsteady Flow Models 5-2
Conditions that Require Unsteady
Flow Analysis. . . . . . . . . . . . . . .. 5-3
Geometry .................... 5-4

Controls ..................... 5-5
Boundary Conditions ............ 5,6
Steps to Follow in Modeling a
River System ................ 5,7
Accuracy of Observed Data ....... 5-8
Calibration and Verification ....... 5,9
Example Applications of Unsteady
Flow Models. . . . . . . . . . . . . . . .. 5-10

Paga

4,1

4,1
4,1
4,2
4,2
4,3
4,4
4-5

4,6
4,7

5-1

5-1

5,2
5-3
5-5
5-5

5,9
5,11
5,16

5-17