PEES7AC Fluid Dynamics
| ECTS Credits : 2 Duration : 21 hours | Semester : S7 | ||
Person(s) in charge : Dr. Hervé COMBEAU, professor, herve.combeau@mines-nancy.univ-lorraine.fr | ||||
Keywords : Fluid mechanics, Laminar flows | ||||
Prerequisites : Continuum mechanics, thermodynamics | ||||
Objective : Get basic knowledge about laminar flows | ||||
The aim of this course is to provide students with rigorous scientific knowledge about laminar flows. The study of perfect fluid flows prepares the way for presenting a first look at flows around obstacles and introduces the two parts that follow: dynamics of vorticity and boundary layers. Content : • Reminder of fluid mechanics equations: Mass and momentum balances Reminder of the laws driving perfect fluid and Newtonian fluid flows. Total energy and kinetic energy balances. • Low Reynolds number flows: General properties, almost parallel flows, lubrication, application to the motion of a sphere with uniform speed in a fluid, Darcy’s law • Flows with negligible viscosity: Irrotational flows, Coanda effect, force exerted by a fluid on an obstacle in a potential flow • Dynamics of vorticity: Circulation of speed, Kelvin’s circulation theorem, vorticity transport equation, sources of vorticity in a flow, examples of the dynamics of vortex lines • Laminar boundary layers: boundary layer on a flat slab, boundary layer detachment
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Abilities : | ||||
Levels | Description and operational vocabulary | |||
Know | Local and global mass, momentum and energy balances for laminar flows | |||
Understand | the notions of viscosity, inertia, diffusion, head loss, viscous dissipation, boundary layer, vorticity | |||
Apply | jet propulsion, propeller, wind turbine, flow around an obstacle or near a wall | |||
Analyse | a real problem and bring out the main phenomena involved, choose a model that fits experimental data, and get at least an order of magnitude | |||
Summarise |
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Assess |
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Evaluation : | ||||
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