Zdeněk Ilich, Christine Martin, Guillaume Grossir, Sébastien Paris, Olivier Chazot
DOI Number XXX-YYY-ZZZ
Conference Number HiSST-2022-42
In the present work, we aim at implementing a temperature-sensitive-paint measurement technique
(TSP) for the determination of heat fluxes during experiments in the hypersonic facilities operated at
the von Karman Institute for Fluid Dynamics (VKI). To do so, an evaluation method for TSP mixtures
is established, including spectrometry, calibrations of paint samples under controlled conditions and
benchmark tests in a hypersonic wind tunnel. At the first stage of the development, attention is paid
to identify a suitable luminophore. A ruthenium-based TSP mixture is selected as a reference which
undergoes the proposed evaluation methodology. The experiments performed at Mach 6 using a flat
plate model confirm that the technique is as competitive as the infrared thermography. Three other
luminophores are proposed for further investigation.