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2021 Faculty Courses School of Environment and Society Undergraduate major in Civil and Environmental Engineering

Hydraulics II

Academic unit or major
Undergraduate major in Civil and Environmental Engineering
Instructor(s)
Shinjiro Kanae / Chihiro Yoshimura
Class Format
Lecture
Media-enhanced courses
-
Day of week/Period
(Classrooms)
3-4 Tue (M114) / 3-4 Fri (M114)
Class
-
Course Code
CVE.B202
Number of credits
200
Course offered
2021
Offered quarter
4Q
Syllabus updated
Jul 10, 2025
Language
Japanese

Syllabus

Course overview and goals

By leveraging the basic principles and concepts to understand fluid dynamics that was learned in Hydraulic I, this lecture provides important concept and solutions (equations) to understand flow dynamics in conduit and open channel, which can be can be applied for designing such water infrastructure. On the basis of the laws of conservation of momentum and energy, the first half of this lecture explains fundamental concepts to understand friction and resistance in laminar and turbulent flow, and then the second half introduces the important equations to describe steady flow of conduit, and steady and unsteady flow of open channel.

This lecture aims to deepen the understanding of the basic principles and fundamental phenomenon of water flow, and to understand the dymanic and complex flow dynamics. Such understanding will help students obtain a foundation of design techniques required for flood control, water use, and environmental management.

Course description and aims

By the end of this course, students will be able to:
1. Expalin principles and mathmatical frameworks of friction, resistance, and energy loss in laminar and turbulence flow.
2. Apply fundamental concepts and principles in fluid dynamics to various hydraulic phenomena in conduit and open channel.
3. Expalin physical mechanisms and one demesional mathmatical framework of fluid dynamics in the conduit and open channel.

Keywords

Laminar and turbulent flow, friction and resistance, energy loss, uniform flow, steady flow of conduit, gradually varied flow of open channel, unsteady flow of open channel

Competencies

  • Specialist skills
  • Intercultural skills
  • Communication skills
  • Critical thinking skills
  • Practical and/or problem-solving skills

Class flow

Students are required to work on exercises and report about key topics covered in the lecture, and expected to do preparation and review for each class.

Course schedule/Objectives

Course schedule Objectives
Class 1

Guidance
Hydraulics and water-related infrastructure, the relationship between the Hydraulic I and Hydrological Experiment

Understand water-related infrastructure and the role of hydraulics in water environment management, and the relationship between Hydraulics I and hydrological experiment

Class 2

Laminar flow and turbulent flow (1)
Reynolds number, laminar flow and turbulent flow

Understand the flow of the viscous fluid with Reynolds number (Textbook Chapter 5)

Class 3

Laminar flow and turbulent flow (2)
Turbulence, Reynolds stress and flow velocity distribution

Understand the characteristics of the turbulent flow, Reynolds number, Reynolds stress, and Navier- Stokes equation (Textbook Chapter 5)

Class 4

Resistance acting on objects in flow
Momentum conservation law, energy conservation law

Understand the various types of resistance to work in a fluid by using momentum and energy conservation laws

Class 5

Steady flow of the pipe (1)
Basic equations, friction loss (laminar flow )

Understand conduit flow using one-dimensional equation, and derive equations for friction loss in laminar flow (Textbook Chapter 9)

Class 6

Steady flow of the pipe (2)
Friction loss (turbulence), Moody chart

Derive equations for friction losses in turbulent flow of conduit, and understand Moody chart (Textbook Chapter 9)

Class 7

Intermediate test and review

Check comprehension in the first half of this lecture and review of the contents

Class 8

Uniform flow of open channel
Equations for average flow rate, friction loss, uniform flow depth

Understood uniform flow of open channel by leaning equations for average flow rate, friction loss, and uniform flow depth (Textbook Chapter 7)

Class 9

Rapidly varied flow of open channel (1)
Specific energy, subcritical and supercritical flow, critical depth

Understand rapidly varied flow of open channel by using specific energy, subcritical and supercritical flow, and critical depth (Textbook Chapter 6)

Class 10

Rapidly varied flow of open channel (2)
Energy conservation law, shifting water depth, control section

Understand rapidly varied flow of open channel from the viewpoint of conservation of energy (Textbook Chapter 6)

Class 11

Rapidly varied flow of open channel (3)
Energy conservation law, shifting water depth, control section

Understand rapidly varied flow (e.g., hydraulic jump) of open channel from the viewpoint of momentum conservation law, conjugate depth, and energy loss (Textbook Chapter 6)

Class 12

Gradually varied flow of open channel (1)
Major surface type of open channel (steep and gentle slopes)

Derive equations for describing open channel water surface profile in steep and low-gradient (Textbook Chapter 8)

Class 13

Gradually varied flow of open channel (2)
Major surface type of open channel (steep and gentle slopes)

Derive equations for describing open channel water surface profile in steep and low-gradient (Textbook Chapter 8)

Class 14

Unsteady flow of open channel
Momentum equation, continuity equation, wave of open channel, bore

Understood unsteady flow (wave and bore) using conservation laws and continuous equation (Textbook Chapter 10)

Study advice (preparation and review)

To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.

Textbook(s)

Hino Mikio, Hydraulics "Meikai Suirigaku", Maruzen (1983/01), ISBN-13: 978-4621027783 (Japanese)

Reference books, course materials, etc.

Ikeda Shunsuke, Hydraulics "Shoujutu Suirigaku", Gihodo (1999/01), ISBN-13: 978-4765515993 (Japanese)

Evaluation methods and criteria

Attendance 10% , reports 10 percent , mid-term exam 40% , final exam 40%

Related courses

  • CVE.B201 : Hydraulics I
  • CVE.B311 : River Engineering
  • CVE.B310 : Coastal Engineering and Oceanography
  • CVE.N230 : Structural Mechanics and Hydraulics Laboratory I
  • CVE.N330 : Structural Mechanics and Hydraulics Laboratory II

Prerequisites

None (It is desirable for students to finish Hydraulics I in advance.)