Applied hydraulics : open-channel flows

lgciv2051  2022-2023  Louvain-la-Neuve

Applied hydraulics : open-channel flows
5.00 credits
30.0 h + 30.0 h
Q1
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 :

1 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
  • 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.
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 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
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
GC


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

Title of the programme
Sigle
Credits
Prerequisites
Learning outcomes
Master [120] in Civil Engineering
GCE2M
5
Master [120] in Architecture and Engineering
ARCH2M
5