Transitional High-Enthalpy Boundary-Layer Measurements by ALTP Heat-Flux Sensors
Autoren |
Jan-Erik Brune |
|---|---|
Veröffentlichungsjahr | 2025 |
Veröffentlichungsart | Beiträge in Monografien, Sammelwerken und Schriftenreihen |
Forschungsprojekt | EnErhOw |
DOI | |
Zitierung | Brune, Jan-Erik; Jakobs, Lukas; Sander, Tobias; Hofmann, Claudia; Roediger, Tim; Mundt, Christian (2025): Transitional High-Enthalpy Boundary-Layer Measurements by ALTP Heat-Flux Sensors. DOI: 10.2514/6.2025-2014 |
Transitional High-Enthalpy Boundary-Layer Measurements by ALTP Heat-Flux Sensors
Abstract
The influence of various parameters on the laminar-turbulent transition of hypersonic boundary layers is a subject of ongoing investigation. This study aims to utilize a new generation of fast atomic layer thermopiles (ALTPs), optimized for precise and high-frequency measurements of wall heat fluxes in high-enthalpy flow conditions. The capabilities of ALTPs to measure mean wall heat fluxes and to capture highly transient flow phenomena in high-enthalpy flow conditions are investigated. Therefore, the mean flow field on a 10.9◦ half-angle cone and the early transition process are measured with the ALTP heat flux sensor at the High-Enthalpy Laboratory Munich (HELM). Furthermore, all measurements are compared with CFD base flow and numerical stability calculations performed with the CFD solver CONSST3D and the LST/LPSE solver COSTAS.