4 credits
20.0 h + 15.0 h
Q2
Teacher(s)
Soares Frazao Sandra;
Language
French
Prerequisites
Good prior knowledge of basic hydraulics or fluid mechanics, and good knowledge of open-channel flows (uniform flow, critical depth, flow profiles) as taught for example in LGCIV2051
Main themes
- Characterization of the fluvial environment
- Sedimentology: erosion criteria and sediment transport
- Fluvial morphology
Aims
At the end of this learning unit, the student is able to : | |
| 1 | Contribution to the acquisition and evaluation of the following learning outcomes of the programme in civil engineering: AA1.1, AA1.2, AA1.3, AA2.1, AA2.2, AA2.3, AA3.1, AA3.3, AA5.2, AA5.3, AA5.4, AA5.5, AA5.6, AA6.1, AA6.2, AA6.3 More specifically, at the end of the course, the student will be able to:
Transversal learning outcomes: links are made in the course to physical geography, geopolitics and history. |
The contribution of this Teaching Unit to the development and command of the skills and learning outcomes of the programme(s) can be accessed at the end of this sheet, in the section entitled “Programmes/courses offering this Teaching Unit”.
Content
1. Introduction : definition of fluvial hydraulics, types of rivers
2. Sedimentology
2. Sedimentology
- Definitions, general river morphology, bedforms
- Modes of sediment transport
-
Non-dimensional variables of sedimentology
- Velocity distribution, mean velocity, shear velocity
- Dimensional analyssis and characteristic numbers -
Threshold for erosion of sediment bed
- Velocity criterion and river equilibrium profile
- Shear stress criterion : Shields and van Rijn diagrams - Bed roughness in natural rivers, stage-discharge relation : Einstein's analysis
-
Bed-load sediment transport
- Transport principles of du Boys
- Analysis of Meyer-Peter and Müller
- Other current approaches (Einstein, Bagnold, etc.) -
Suspended load sediment transport
- Transport équations
- Equilibrium concentration profile (theory of Vanoni'Rouse)
- Suspended load (Einstein's integration)
-
Sedimentologic equilibrium
- Practical formulae : regime theories
- Bank stability, stable cross-section shape - Morphological response to river training works
- Helical flow in meanders
- Principles : Fargue's laws and rules
- Local works : surface panels, bandalling, bottom panels, bottom sills, bank protection
- River works : banks, longitudinal dikes, groynes, sills
- Channelization
Teaching methods
The teaching activities are organized as follows:
- Ex-cathedra courses for the main theory
- Practical exercises
- Well illustrated examples and field cases taken from the literature or from the experience of the professor
Evaluation methods
Continuous evaluation though home works and assignments. Oral examination with preparation time.
Online resources
Available on Moodle: powerpoint slides, partial lecture notes and other useful documents. MOOC course on the edX platform: 'Hydraulique fluviale 2: sediments et morphologie fluviale'
Bibliography
Notes de cours
Jansen et al., "Principles of river engineering"
Chang, "Fluvial processes in river engineering"
Jansen et al., "Principles of river engineering"
Chang, "Fluvial processes in river engineering"
Faculty or entity
GC
