Measuring the Free-Stream Turbulence Spectrum in the Shock Tunnel HELM using the Focused Laser Differential Interferometry (FLDI)
Titel Konferenzpublikation:
25th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
Veranstalter (Körperschaft):
American Institute of Aeronautics and Astronautics
Konferenztitel:
AIAA International Space Planes and Hypersonic Systems and Technologies Conference (25., 2023, Bengaluru)
Tagungsort:
Bengaluru, Karnataka, India
Jahr der Konferenz:
2023
Datum Beginn der Konferenz:
28.05.2023
Datum Ende der Konferenz:
01.06.2023
Verlagsort:
Reston, Virginia
Verlegende Institution:
American Institute of Aeronautics and Astronautics
Jahr:
2023
Seiten von - bis:
3026
Sprache:
Englisch
Stichwörter:
High Enthalpy Shock Tunnel ; Free Stream Turbulence ; High Speed Flows ; Stagnation Pressure ; Photodiodes ; Stagnation Enthalpy ; Laminar Turbulent Transition ; Refractive Index ; Computational Fluid Dynamics ; Hot Wire Anemometry
Abstract:
The focused laser differential interferometer (FLDI) can be used to record density differences at two points with a high degree of temporal resolution. The measurements at the shock tunnel HELM are intended to determine the spectrum of the density distribution in the free-stream of a cone nozzle. In addition, by operating two FLDI beam pairs set up one behind the other in the direction of flow, the velocity of the flow can be calculated by correlating the two signals.