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Ecole nationale supérieure de l'Énergie, l'Eau et l'Environnement
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Engineering school in energy, water and environment
Our engineering & master degrees
Our engineering & master degrees

> Studies > E3-STU-COURSES

Applied Fluid Mechanics for the Environment - 4EUS3MFE

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  • Number of hours

    • Lectures : 16.0
    • Tutorials : 34.0
    • Laboratory works : 10.0
    • Projects : -
    • Internship : -
    • Written tests : 0
    ECTS : 5.0
  • Officials : Olivier METAIS, Philippe SECHET

Goals

The course is composed in three parts :
- turbulence: physical and modelling aspects
- diffusion and dispersion in the Environment
- environmental fluid mechanics

Content

Turbulence: physical and modelling aspects(12 h of lecture and 4h of supervised work)
Content:
o Turbulent flows characteristics
o Statistical approach : averaging, Reynolds equations ; turbulent eddy-viscosity and diffusivity ; turbulent boundary layer ; energy mechanisms: production and dissipation
o Statistical tools and theories : correlations ; Fourier space ; kinetic energy and dissipation spectra ; turbulent scales ; Kolmogorov theory
o Turbulent shear flows : example of the plane jet
o The different approaches for turbulence modelling and simulation: statistical modelling, direct numerical simulation, large eddy simulation
o Statistical modelling: concept of order ; zero, one and two-equations models ;
k-epsilon model; second order model
o Large-eddy simulation : methodology ; Smagorinsky model

Diffusion and dispersion in the Environment (6 h of lecture et 2h of supervised work)
Content :
o Diffusion concept and Fick’s law : diffusion equation ; molecular and turbulent diffusion coefficients
o Unidirectional diffusion problem : concentrated injection ; extended injection ; presence of walls ; diffusion in a current
o Multidirectional diffusion problems : concept of plume
o Dispersion in shear flows : longitudinal dispersion coefficient
o Application to turbulent flows in rivers : characteristic turbulent velocity and velocity profile ; mixing distances in rivers ; flow rate determination
o Diffusion in fully-developed turbulence: diffusion of a cloud of tracers ; particle dispersion ; dispersion of particles ; Taylor’s theorem ; Richardson law .

Environmental fluid mechanics (12h of lecture et 12h of supervised work)
Content :

  • Dimensional analysis and Vashy-Buckingham theorem
  • Laminar boundary layer : Blasius equation and resolution methods ; boundary layer with adverse pressure gradient and separation
  • Energy equation ; Equation de l’énergie ; Compressible flow statics and concept of atmospheric stability
  • Rotating flows ; centrifugal and Coriolis forces ; Ekman layer
  • Vorticity dynamics
    12h of practical activities

Prerequisites

Basis in Fluid mechanics

Tests

Exam

CC*1/3 + CT*2/3

Calendar

The course exists in the following branches:

see the course schedule for 2019-2020

Additional Information

Course ID : 4EUS3MFE
Course language(s): FR

You can find this course among all other courses.

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Date of update February 8, 2017

Grenoble INP Institut d'ingénierie Univ. Grenoble Alpes