caa a22 4500 606244999 CHVBK 20210128101333.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s12567-015-0098-9 doi (NATIONALLICENCE)springer-10.1007/s12567-015-0098-9 Propulsive jet influence on generic launcher base flow [Elektronische Daten] [S. Stephan, J. Wu, R. Radespiel] Afterbody flow phenomena represent a significant source of uncertainties in the design of a launcher. Therefore, there is a demand for measuring such flows in wind tunnels. For propulsive jet simulation a new jet facility was integrated into a hypersonic/supersonic wind tunnel. The jet simulation resembles the generic model of a staged rocket launcher. The design and the qualification of the facility are reported. This includes measurements of pressure, temperature and Mach number distribution. Pressure and Schlieren measurements are conducted in the wake of the generic launcher. The unsteady pressure characteristics at the generic rocket base and fairing are analyzed for supersonic and hypersonic freestream. The influence of the under-expanded jet is reported and the jet temperatures are varied. On the base fluctuations at a Strouhal number around 0.25 dominates supersonic freestream flows. Additionally, a fluctuation level increase on the base is observed for Strouhal numbers above 0.75 in hypersonic flow regime, which is attributed to the interactions of wake flow and jet. CEAS, 2015 Jet simulation nationallicence Base flow nationallicence Afterbody flow nationallicence Generic rocket nationallicence Launcher nationallicence Unsteady pressure fluctuations nationallicence Stephan S. Institute of Fluid Mechanics, Technische Universität Braunschweig, Hermann-Blenk-Str. 37, 38108, Braunschweig, Germany aut Wu J. Institute of Fluid Mechanics, Technische Universität Braunschweig, Hermann-Blenk-Str. 37, 38108, Braunschweig, Germany aut Radespiel R. Institute of Fluid Mechanics, Technische Universität Braunschweig, Hermann-Blenk-Str. 37, 38108, Braunschweig, Germany aut CEAS Space Journal Springer Vienna 7/4(2015-12-01), 453-473 1868-2502 7:4<453 2015 7 12567 https://doi.org/10.1007/s12567-015-0098-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s12567-015-0098-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Stephan S. Institute of Fluid Mechanics, Technische Universität Braunschweig, Hermann-Blenk-Str. 37, 38108, Braunschweig, Germany aut NATIONALLICENCE 700 1- Wu J. Institute of Fluid Mechanics, Technische Universität Braunschweig, Hermann-Blenk-Str. 37, 38108, Braunschweig, Germany aut NATIONALLICENCE 700 1- Radespiel R. Institute of Fluid Mechanics, Technische Universität Braunschweig, Hermann-Blenk-Str. 37, 38108, Braunschweig, Germany aut NATIONALLICENCE 773 0- CEAS Space Journal Springer Vienna 7/4(2015-12-01), 453-473 1868-2502 7:4<453 2015 7 12567