FR
EN
AérodynamiqueAérodynamique et transport (GSI)
5ECTS (EU)
2Coefficient
28:00Hours
Séquencement
Learning objectives
- Understand the impact of a body's geometry on its aerodynamic performance and the value of using a profiled body and hypersustaining devices.
- Know the general characteristics of a flow around a wing profile and the role of incidence.
- Understand the problem of modeling turbulent flow in CFD software.
- Simulate digitally (with Fluent Ansys) flow around a wing profile to calculate its aerodynamic coefficients.
Prerequisites
| Module | Teaching unit | Semester |
|---|---|---|
| Fluid Mechanics 1 | Mechanical Engineering 2 | S6 |
| Fluid Mechanics 3 | pre-orientation IMC | S8 |
Program
- Aerodynamics of simple bodies
- limit layer
- aerodynamic coefficients
- obstacles with progressive curvature
- obstacles to sharp edges
- Profiled bodies
- the car cx.
- Wing Aerodynamics:
- vocabulary and coefficients related to 3D wings and 2D profiles
- characteristics of flow around a 2D profile, depending in particular on the incidence and shape of the profile
- brief history of wing profiles
- details of aerodynamic performance of some profiles
- hypersuspension devices
- If the wing is finished in size.
- Limit layer and turbulence:
- Reminders: laminar and turbulent diets, kinematic and dynamic viscosities, Navier-Stokes equations
- Characteristics of laminar and turbulent boundary layers
- Statistical modelling of turbulence.
- TD: numerical simulation with CFD ANSYS Fluent flow software around the 2D profile of his choice. Deepening on a theme of choice.
Assessment
- Presentation of numerical simulation work in TD (support) (50%)
- Control of the acquisition of basic concepts in aerodynamics as part of a quiz on Celene (50%)
References
- R. Comolet, Experimental Fluid Mechanical, Volume II, 4th edition, 1994
- P. Rebuffet, Experimental Aerodynamics, 1969
- P. Hamon, Vibration of structures coupled with wind, Editions de l'Ecole Polytechnique, 2006
- T. Faure, Dynamics of Applied Fluids, Dunod Editions, 2008
- P.L. Viollet et al., Applied Fluid Mechanics, 2002
- Y. Eulalie, Aerodynamic study and trail control on a body of Ahmed right capot, PhD Thesis, University of Bordeaux, 2014
- Mr. Roumeas, Contribution to the analysis and control of thick body wakes by continuous aspiration or blowing, PhD Thesis, Toulouse INP, 2006
- G. Fourrie et al., Passive flow control around a simplified vehicle geometry, 19th French Mechanical Congress, 2009
- Technical Bulletin Renault, Special Aerodynamic Series, November 1988
- S. Selig et al., Summary of Low-Speed Airfoil Data, vol. 3, 1997
- Mr. Sadray, Aircraft performance analysis, 2009
Skills
5| Ref. | Verb | Description | Level |
|---|---|---|---|
| C1_2 | list | different geometries classes and know the associated general aerodynamic performances. | 1 |
| C1_2 | analyze | The overall evolution of aerodynamic performance of a wing profile as a function of the number of Reynolds and incidence. | 3 |
| C1_2 | appraise | The impact of turbulence on the aerodynamic performance of a body. | 4 |
| C1_2 | choose | a profile and/or hypersuspension devices that meet the required aerodynamic performance. | 3 |
| C1_2 | estimate | aerodynamic performance of a profile by numerical simulation. | 4 |