ECTS Credits : 2
Duration : 21 hours
Semester : S7
Person(s) in charge :
Dr. Hervé COMBEAU, Professor, firstname.lastname@example.org
Keywords : Fluid Mechanics, turbulence
Prerequisites : Basic knowledge about laminar flows
Objective : Provide konwledge about turbulent flows
This course is the follow-up of the previous one about fluid dynamics. It introduces the concept of turbulent flow and the basics in turbulence. The model k-e, which is used quite often in the industry, is presented in such a way as to allow students to then move on to modeling.
• Characteristics of turbulent flows:
Transition towards turbulence, random characteristics of spatio-temporal magnitudes, consequence of turbulence.
• Semi-empirical turbulence models:
Statistical approach, semi-empirical approach, k-e model.
• Application to simple cases.
• Turbulent boundary layer.
• Flows around obstacles:
Boundary layer detachment. Definition and calculation of drag forces and lift. Effects of
turbulence on drag and lift forces.
Description and operational verbs
The criteria allowing to identify turbulent flows, RANS-based models
The reasons why a flow evolves towards turbulence and the change in its properties this transition involves
turbulent boundary layers, flows around obstacles or nearby a wall
establish a model for a flow and analyze it
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