Experimentally studying effects of different layouts of vortex generator on controlling stall flow over airfoil

The introduction of the full paper discusses briefly past relevant research and then proposes the research mentioned in the title. Sections 1 and 2 present our research and its evaluation. Section 1 explains how we did our experiments; Tables 1, 2, and 3 present respectively the details of layout No.1, layout No.2, and layout No.3 of vortex generator. The core of section 2 consists of : (1) the stall flow over airfoil is suppressed evidently by the first two layouts; (2) the maximum lift coefficient is increased dramatically for the first two layouts; (3) the control effect of stall flow over airfoil for layout No.2 is much better than that for layout No.1; (4) for both layout No.1 and layout No.2, the inclined angle of the vortex generator is smaller and the control effect of stall flow over airfoil is better; (5) layout No.3 of vortex generator is almost of no use for suppressing the stall flow over airfoil; the maximum lift coefficient is decreased slightly, and the drag is increased markedly.