Applied hydraulics : open-channel flows

5.00 credits

30.0 h + 30.0 h

Teacher(s)

Soares Frazao Sandra;

Language

English
> French-friendly

Prerequisites

Fundamental hydraulics or fluid mechanics, as taught in LGCIV1051

Main themes

- Fundamentals in Hydrology
- Open-channel flows (steady flows)

Learning outcomes

At the end of this learning unit, the student is able to :

Contribution of the course to the program objectives (N°)
AA1.1, AA1.2, AA1.3, AA2.1, AA5.2, AA5.3
Specific learning outcomes of the course

Design of irrigation channels
Design of urban sewers
Calculation of steady flow water profiles in channels
Description and calculation of the effects of local changes in the channel geometry on the flow (narrowing, widening, change in bed slope, presence of bridge piers)

Transversal learnning outcomes of the course :

Create and use and Excel sheet to solve in a simple and efficient way problems in hydraulic engineering
Basic use of a software for river flow calculations
Summarize the acquired knowledge in order to present on the blackboard a clear and concise answer to a given question
Initiate a general questioning on the use of water resources

Content

The course addresses technical content related to hydrology and open-channel flows, while making the link with the direct and indirect environmental impacts related to water management as regards floods and inundations.

Introduction : purpose of open-channel hydraulics
Hydrology: rain, water cycle, measurement and analysis of discharges, rainfall-discharge relationships (unit hydrograph, rational method, Hauff-Vicari)
Steady open-channel flows: channels, sewers, and rivers. Steady uniform flow: Chezy and Manning equations, optimal trapezoidal section, compound and heterogeneous channels, normal depth calculation in channels and sewers. Gradually varied flows: specific energy, critical depth, critical slope, flow profiles (theory and practical calculations). Flow in natural rivers: pseudo-uniform flow. Rapidly varied flow: hydraulic jump, drawn jump. Flow in non-prismatic geometry: flow between a gate and a reservoir, change in bed slope, change in channel width, presence of bridge piers, Venturi flumes, bottom sill, broad crested weir.

Through these themes, the following SDGs are addressed and discussed:
    SDG 6: Clean water and sanitation
    SDG 11: Sustainable Cities and Communities
    SDG 13: Climate action

Teaching methods

Lectures, practical exercises, homeworks and laboratory, all in close link with each other
Numerous examples of applications and real cases where the methods developed in the course were applied
Use of softwares (Q-GIS, SWMM, HEC-RAS) and creation of Excel calculation sheets

Evaluation methods

The final mark for the course comprises the continuous evaluation (40%) and the oral examination during the exam session (60%).
Continuous evaluation:

Two homeworks evaluated based on a report
One written test about open-channel flow calculations

In case of unjustified absence for one of these activities, or if a homework is not delivered, the student will be considered as absent for teh evaluation, and will obtain a 0/20 mark for the entire course. The student will have to complete these activities for the second exam session (August-September) to obtain the final mark according to the above mentioned weighting.

Oral exam:

Preparation of answers on the blackboard, without the lecture notes
Three questions covering the whole course

Other information

The use of generative Artificial Intelligence (AI) tools is tolerated as long as they are used responsibly and in accordance with academic and scientific integrity practices. In particular, the student is required to systematically indicate all parties having used AI, e.g. in a footnote specifying whether AI was used to search for information, to draft the text or to correct it. Furthermore, sources of information must be systematically cited while respecting bibliographic referencing standards. The student also remains responsible for the content of his or her production, regardless of the sources used.

Online resources

Moodle web site for the course
MOOC edX « Hydraulique fluviale 1 : écoulements à surface libre »
Podcasts on Youtube

Bibliography

Chow, "Open-channel hydraulics"
Lencastre, "Hydraulique générale"

Faculty or entity

Programmes / formations proposant cette unité d'enseignement (UE)

Title of the programme

Sigle

Credits

Prerequisites

Learning outcomes

Master [120] in Civil Engineering

GCE2M

Master [120] in Architecture and Engineering

ARCH2M