Aerodynamic performance of the DeSiReH high-lift laminar wing at free flight and ETW in-tunnel conditions

Abstract

The current research concerns a half-model high-lift con¦guration inside the European Transonic Wind Tunnel (ETW) at landing regime. The in §uence of the wind-tunnel walls (both slotted and closed) is investigated and the numerical results are compared with measured data. The investigated model is a three-element landing con¦guration with Krueger device and §ap. All calculations are performed on structured grids using EWT-TsAGI code. The computed in-tunnel results are in good agreement with uncorrected experimental data, with maximum lift predicted at the same angle of attack. The slotted wall con¦guration produces less wall interference than the closed wall con¦guration.