Suppression of transonic buffet with plasma vortex generators
| Autor: | O. I. Vishnyakov, V. N. Ishchenko, A. D. Budovsky, Andrey A. Sidorenko, P. A. Polivanov, V. G. Sudakov |
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| Rok vydání: | 2019 |
| Předmět: |
Physics
Nuclear and High Energy Physics Radiation Reynolds number 02 engineering and technology Mechanics Vortex generator 01 natural sciences 010305 fluids & plasmas law.invention Vortex Physics::Fluid Dynamics Supercritical airfoil symbols.namesake Boundary layer 020303 mechanical engineering & transports 0203 mechanical engineering Mach number law Schlieren 0103 physical sciences symbols Transonic |
| Zdroj: | Thermophysics and Aeromechanics. 26:465-480 |
| ISSN: | 1531-8699 0869-8643 |
| DOI: | 10.1134/s0869864319040012 |
| Popis: | In the present paper, we report on the results of an experimental study of the possibility to control the transonic buffet on a rectangular wing using plasma vortex generators. The influence of the developed device on the flow consists in creating a longitudinal vortex in the boundary layer as a result of asymmetric energy supply at the surface of a small vertical wedge. The experiments were performed using a wing model with a supercritical airfoil in the range of free-stream Mach numbers 0.73 to 0.78 and Reynolds numbers Re = (2.64-2.8)·106. The experimental data obtained using the method of high-speed schlieren visualization and pressure distribution measurements in the wake of the model show that the technique allows one to control both the average flow characteristics and the characteristics of shock-wave oscillations. |
| Databáze: | OpenAIRE |
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