Component
École Nationale Supérieure d'Électrotechnique d'Électronique
Description
I. Bubbles, drops and particles (5 class sessions, 2 TD sessions)
1) Introduction: Industrial and Environmental Issues bubbles drops and particles of energetics and processes to the environment.
2) The different types of particles. Nature of the particle vs condition surface (notion of surfactant) Structure of flow and wake / production of vorticity Shape effect (deformability of fluid particles: spherical, ellipsoidal, foolish) => limitation of course.
3) Terminal speed (<=> The drag) for each case: solution with the hands (physical arguments) then analytical solution.
3a) Stokes Law: Viscous regime
3b) Newton's law: inertial regime
3c) Levich's Law (Dissipation of Viscous Lead Flow)
4) Mass added Kinetic energy, impulse, drift
5) Trajectory
5a) Maxey decomposition
5b) Archimedes generalized
5c) Relaxation time
5d) Number of Stokes Rq: a number of dynamic effects (to be defined) will have to be left out (and will be seen in 3H). For example, history, lift, magnus.