Numerical study of transonic shock buffet control over a supercritical airfoil

Yuichi Kuya, Kenshiro Boda, Keisuke Sawada

Research output: Contribution to journalArticlepeer-review


A study conducts unsteady Reynolds-averaged Navier–Stokes (URANS) computation of shock buffet control, using solid vortex generators (VGs). Previous studies mainly focused on how much VGs reduce the size of the shock-induced separation. It discusses how the shock-induced separation changes the effective camber of an airfoil when VGs are adopted, in order to provide further understanding of the flow physics of shock buffet and its control. The numerical results are carefully validated with existing experimental data. The convective numerical fluxes are evaluated by SLAU and a second-order U-MUSCL scheme is employed. The viscous numerical fluxes are evaluated by the second-order central discretization. A correction method proposed by Thornber and team is applied to give the minimum dissipation for low Mach number flow features

Original languageEnglish
Pages (from-to)1242-1251
Number of pages10
JournalJournal of Aircraft
Issue number6
Publication statusPublished - 2020


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