Dataset for publication &quot;Design and testing of a novel low-cost C2H2–O2 combustion driver for shock tubes&quot;

Noé, Micha Renè; Albert Gil, Josep; Heufer, Karl Alexander

doi:10.18154/RWTH-2025-02558

Dataset for publication "Design and testing of a novel low-cost C2H2–O2 combustion driver for shock tubes"

Noé, Micha Renè^RWTH* ; Albert Gil, Josep^RWTH* ; Heufer, Karl Alexander^RWTH*

2026

Online
DOI: 10.18154/RWTH-2025-02558
URL: https://publications.rwth-aachen.de/record/1006589/files/DataPublication.zip
URL: https://publications.rwth-aachen.de/record/1006589/files/Guide.pdf

Einrichtungen

Lehrstuhl für Hochdruck-Gasdynamik (415510)

Inhaltliche Beschreibung (Schlagwörter)
Shock tube (frei) ; Hypersonic flow (frei) ; Shock tunnel (frei) ; Deflagration driver (frei) ; Combustion-driven shock tube (frei)

Kurzfassung
The dataset contains voltage recordings of pressure sensors in a low-cost C2H2-O2 combustion driver targeting low-enthalpy conditions. First experiments were conducted with an isolated combustion driver section varying the number of spark plugs. For the chosen single burst diaphragm opening mechanism, it was hypothesized that small imperfections in the diaphragm scribe depth can lead to significantly different shock tube processes, which was disproven by performing experiments with diaphragms of intentionally slightly different scribe depths. The influence of driver temperature inhomogeneities inherent to the combustion in closed vessels was assessed in a set of experiments with a varying number of spark plugs. A pressure drop immediately after shock reflection could be correlated to inhomogeneous driver temperature distribution. To compensate for this effect and optimize the available test time to approximately 5.5 ms, further experiments were carried out at undertailored conditions and the repeatability of the found conditions was shown for a set of eight experiments. Finally, the combustion driver was compared to conventional helium drivers. The metadata and raw data are provided as human- and machine-readable .json files and contain all information necessary for post-processing. Post-processing files, which were used to create the figures in the corresponding journal publication, are included as MATLAB-scripts. Further details on the experimental methodology can be found in the journal publication.

OpenAccess:
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