科目名
Course Title
Sediment Transport
[
土砂
輸送特論
E
]
講義題目
Subtitle
責任教員
Instructor
泉
典洋
[Norihiro IZUMI] (
大学院工学研究院
)
担当教員
Other
Instructors
開講年度
Year
2013
時間割番号
Course Number (E3)
092196
(31002)
開講学期
Semester
2学期
単位数
Number of Credits
2
補足事項
Other
Information
キーワード
Key Words
fluid mechanics, morphodynamics, open channel flow, sediment transport, river morphology
授業の目標
Course Objectives
Morphology and configuration of river channels are determined by the sediment movement due to flow, but the flow
itself is in
turn strongly affected by the channel configuration. The river morphology is self
-
organized by the interaction between the
flow and the channel configuration. It is important to predict river morphology formed under given conditions from vie
wpoints
of flood protection, sustainable development of water resources, and advanced and integrated land use planning. One of the
objectives of this lecture is to obtain advanced knowledge on fluid mechanics, sediment transport, and morphodynamics in
riv
ers, needed to solve a variety of river engineering problems.
到達目標
Course Goals
To understand the concepts of mechanics underlying sediment transport processes and morphological evolution of river beds
To obtain the ability to evaluate sediment transport
in rivers, and predict the morphological change of river beds
To acquire the ability to solve sediment transport problems and morphological problems caused by sediment transport
To understand linear and nonlinear stability analyses applicable to problems r
elated to sediment transport and river
morphology
授業計画
Course Schedule
(1) Introduction
(2) Sediment Properties rock types, specific gravity, size, size distribution, porosity, shape
(3) Review of Fluid Mechanics 1 Navier
-
Stokes equations, Reynolds
decomposition
(4) Review of Fluid Mechanics 2 bed shear stress, relations for channel resistance, St. Venant shallow water equations
(5) Equations of Particle Motion particle moving through quiescent fluid, terminal fall velocity in quiescent fluid, part
icle in a
moving fluid, collision with the bed, diffusion of turbulence
(6) Macroscopic View of Sediment Transport bedload, suspended load, Exner equation
(7) Threshold Condition for Sediment Motion Critical stress for flow over a granular bed, Shields d
iagram
(8) Mechanics of Bedload Transport 1 Bagnold hypothesis of bedload transport
(9) Mechanics of Bedload Transport 2 Ashida
-
Michiue formula, smorgasbord of bedload transport relations
(10) Suspended Sediment Transport 1 mass conservation of suspende
d sediment, Rousean distribution of suspended sediment
(11) Suspended Sediment Transport 2 vertically
-
averaged concentration, relation for sediment entrainment
(12) Descriptive Analysis of Bedforms introduction of bedform mechanics, dunes, antidunes, rip
ples, bars
(13) Stability Analysis of Bedforms 1 one
-
dimensional St. Venant model of bedform stability, modified St. Venant stability
model
(14) Stability Analysis of Bedforms 2 shear flow model
準備学習(予習・復習)等の内容と分量
Homework
Five to six assignments during
a term
成績評価の基準と方法
Grading System
60 %: assignments (5
-
6 assignments during a term), 40 %: final exam (or final project)
テキスト・教科書
Textbooks
Sedimentation Engineering
/
Marcelo H. Garcia
/
ASCE
H a n d o u t s p r e p a r e d b y t h e i n s t r u c t o r
講 義 指 定 図 書
R e a d i n g L i s t
F l u i d
D y n a m i c s
/
J.W. D a i l y, a n d D. R. H a r l e m a n
:
A d d i s o n
-
W e s l e y
,
1 9 6 6
L o o s e B o u n d a r y H y d r a u l i c s
/
J. R a u d k i v i
:
P e r g a m o n
,
1 9 9 0
参 照 ホ ー ム ペ ー ジ
W e b s i t e s
h t t p://e a r t h
-
f e.e n g.h o k u d a i.a c.j p/l e c t u r e/S e d i m e n t T r a n s p o r t.h t m l
研 究 室 の ホ ー ム ペ ー ジ
W e b s i t e o f L a b o r a t o r y
h t t p://e a r t h
-
f e.e n g.h o k u d a i.a c.j p/
備考
Additional Information
PARE
発展科目
(This is a PARE Core Cluster Subject)
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