Nonstationary phenomena in the region of shock-wave interaction with a boundary layer at transonic flow velocities
| Autor: | A. D. Budovskii, O. I. Vishnyakov, P. A. Polivanov, Andrey A. Sidorenko |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Physics Shock wave Physics and Astronomy (miscellaneous) business.industry Astrophysics::High Energy Astrophysical Phenomena Flow (psychology) Mechanics 01 natural sciences Schlieren imaging 010305 fluids & plasmas Intensity (physics) Physics::Fluid Dynamics Boundary layer Optics Particle image velocimetry 0103 physical sciences business Transonic Wind tunnel |
| Zdroj: | Technical Physics Letters. 43:570-573 |
| ISSN: | 1090-6533 1063-7850 |
| DOI: | 10.1134/s1063785017060268 |
| Popis: | Nonstationary characteristics of detached flow have been experimentally studied during interaction of the boundary layer with a shock wave that appears on a profiled bump in transonic flow. The experiments were performed with variable shock-wave intensity and position in a T-325 wind tunnel. The flow was studied using methods of schlieren imaging, measuring average pressure and its pulsations on the surface of a model, and determining velocity fields by particle image velocimetry. Analysis of the experimental data showed that the observed shock-wave oscillations and flow pulsations in the detachment zone were related to disturbances present in the oncoming boundary layer. |
| Databáze: | OpenAIRE |
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