Aerodynamic characteristics of a wing-and-flap configuration in ground effect and yaw

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dc.contributor.author Roberts, L.
dc.contributor.author Correia, J.
dc.contributor.author Finnis, Mark V.
dc.contributor.author Knowles, Kevin
dc.date.accessioned 2017-08-08T11:15:41Z
dc.date.available 2017-08-08T11:15:41Z
dc.date.issued 2015-08-11
dc.identifier.citation Roberts L, Correia J, Finnis M, Knowles K (2016) Aerodynamic characteristics of a wing-and-flap configuration in ground effect and yaw. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, Volume 230, Issue 6, pp. 841-854 en_UK
dc.identifier.uri https://doi.org/10.1177/0954407015596274
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/12288
dc.description.abstract The influence of the yaw angle on a model representative of a monoposto racing car’s front wing and nose section operating in close proximity to the ground is discussed. The yawed condition is representative of a car operating in a crosswind or with side-slip while cornering. Because of the need for downforce in corners rather than on a straight, it is standard practice to test a racing car at various orientations of yaw, pitch and roll quasi-statically. Wind tunnel testing with a 50%-scale model at a unit Reynolds number of 1.69 × 106 was used to investigate the forces and the surface flow structures. The results were then used to validate simulations with the three-equation k–kL–ω transitional turbulence model to observe the surface pressures and the wake structures. It was found that a change in the surface pressure caused asymmetric loading of the wing, the strengthening or inhibiting of vortices depending on their rotational sense and an overall reduction in both the downforce and the drag of the wing; all these were amplified as the yaw angle was increased or the ground clearance reduced. The fundamental aerodynamic flow features of a racing car’s front wing operating at yaw are established. en_UK
dc.publisher IMechE en_UK
dc.title Aerodynamic characteristics of a wing-and-flap configuration in ground effect and yaw en_UK
dc.type Article en_UK


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