Yayla, S.Canpolat, C.Sahin, B.Akilli, H.2025-05-102025-05-1020131270-963810.1016/j.ast.2012.12.0072-s2.0-84878832236https://doi.org/10.1016/j.ast.2012.12.007https://hdl.handle.net/20.500.14720/4792The aim of the current study at first stage is to demonstrate the general flow structure qualitatively using the dye visualization technique. Secondly, the instantaneous flow data taken by a Stereoscopic Particle Image Velocimetry (stereo-PIV) over a stationary nonslender lambda wing is used to determine the time-averaged flow topology in order to provide detailed information about crucial events like formation of leading edge vortices and vortex breakdown in plan-view planes and cross-flow planes. The flow structure close to the lambda wing surface and development of the vortex breakdown are investigated as functions of angles of attack within the range of 7°≤α≤17°. Experimental analyses are composed of time-averaged patterns of streamlines, vorticity contours, transverse and streamwise velocity components, Reynolds-stress correlations, distribution of fluctuating velocities, and turbulent kinetic energy. Results show that the angle of attack has a substantial influence on the flow behavior on the nonslender lambda wing surface. © 2012 Elsevier Masson SAS. All rights reserved.eninfo:eu-repo/semantics/closedAccessAngle Of AttackLambda WingPivTurbulent StatisticsArticle281Q1Q1417430