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|Title:||A numerical study of transonic buffet on a supercritical airfoil||Authors:||Xiao, Q.
|Issue Date:||2004||Citation:||Xiao, Q.,Tsai, H.M.,Liu, F. (2004). A numerical study of transonic buffet on a supercritical airfoil. AIAA Paper : 6528-6543. ScholarBank@NUS Repository.||Abstract:||The steady/unsteady flow of the BGK No. 1 supercritical airfoil is investigated by the solution of the Reynolds-Averaged Navier-Stokes equations with a two-equation k-ω turbulence model. The dual-time stepping method is used to march in time. Two steady cases (Ma = 0.71, α = 1.396° and Ma = 0.71, α = 9.0°) and one unsteady case (Ma = 0.71, α = 6.97°), both with a far-stream Re = 20×10 6, are computed. The results are compared with experimental data obtained by Lee et al. The mechanism of the self-excited oscillation for supercritical airfoils is explored. The oscillation period calculated based on the mechanism proposed by Lee is consistent with the Fourier analysis of the computed lift coefficient.||Source Title:||AIAA Paper||URI:||http://scholarbank.nus.edu.sg/handle/10635/115367|
|Appears in Collections:||Staff Publications|
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