Aerodynamics has played a more and more important role in motorsports formaximising the race car performance. Amongst all the aerodynamic devices of racecar, the front wing plays a vital role. In order to evaluate aerodynamic forces anddevelop new solutions for the race car, Computational Fluid Dynamics (CFD) hasbecome a powerful tool. The most classical numerical simulations are based onsolving the Reynolds Averaged Navier-Stokes (RANS) equations.In this project, the aerodynamics of front wings in ground effect has been studiedusing computational methods. A serious of simulations has carried out both for asingle element wing and a double element wing by using DLR‟s FLOWer code.Simulations using three numerical schemes and three different turbulence models arecarried out and the computational results were compared with the experimental dataaround the single element wing in ground effect. Further on, numerical studies on theaerodynamics performance have carried out for both single and double element wingsin ground effect.For the investigation of different numerical methods and different turbulence models,the results obtained by using HLLC Riemann solver with 3rd order WENO schemes inconjunction with two-equation SST k-ω turbulence model shows more accuratesimulations for the lift, drag coefficients and the pressure distributions at all heights.Furthermore, the numerical study on single element wing shows that the decreasedheight (to a certain level) and the increased angle of attack (up to the stall angle) willresult in larger downforce. For the double element wing, various simulations werecarried out under the configurations that the main element is fixed while the flap anglechanges. The general tendency for both the downforce and the drag are similar withthe single element wing, however the magnitude is much bigger. It is also found thatthe increased camber which made by the adding flap does not bring a significantvortex shedding after the trailing edge.
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