Wind tunnel measurements of the surface pressure fluctuations on the new VEGA-C space launcher
| Autor: | Roberto Camussi, D. Barbagallo, C. Stoica, A. Di Marco, Matteo Bernardini, Fulvio Stella, L. Romano, F. De Gregorio, F. Paglia |
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| Přispěvatelé: | Camussi, R., Di Marco, A., Stoica, C., Bernardini, M., Stella, F., De Gregorio, F., Paglia, F., Romano, L., Barbagallo, D. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Buffeting wind tunnel Aerospace Engineering 02 engineering and technology 01 natural sciences 010305 fluids & plasmas law.invention Background noise symbols.namesake 020901 industrial engineering & automation law 0103 physical sciences vega-c Aerospace engineering Aerospace Pressure measurement pressure fluctuations Wind tunnel business.industry Launch vehicle Aerodynamics Aeroelasticity Mach number symbols Trisonic WT acoustic qualification business Transonic Geology |
| Popis: | An extensive wind tunnel test campaign devoted to the characterization of the aerodynamic and aeroacoustic behaviour of the new Space Launcher VEGA-C has been carried out in the trisonic wind tunnel available at the National Institute for Aerospace Research (INCAS) in Bucharest. The present paper summarizes the main results of the aeroacoustic investigation with a specific focus on the buffeting analysis. For this reason, the results presented herein are limited to the transonic conditions which are the most critical in terms of occurrence of flow instabilities. The scaled instrumented model of the VEGA-C launcher has been equipped with flush mounted Kulite sensors that provided the distribution of the wall pressure fluctuations. Pressure measurements at the wall of the wind tunnel have been carried out as well, with the scope of measuring reference signals to be used for cleaning the model pressure data from the background noise. Numerical simulations have been also performed to facilitate the physical interpretation of the experimental outcomes by qualitatively identifying the position of the shockwaves and tracking their evolution along the launcher for increasing Mach number. Data processing provides temporal statistics of the wall pressure signals as well as spectral quantities that give clear indications about the absence of buffeting. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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