An apparatus for generating reproducible and scalable shock waves in the free field
- A simple test bench was set up on the BAM test site to
investigate shock waves caused by gas detonations. The aim was to build
a simple mobile test bench that can be used for various applications, to
demonstrate the vaildity and for comparison with other test benches. For
this purpose a balloon filled with acetylene and oxygen at atmospheric
pressure with an electric ignitor was used. The characteristics of the
shock waves can be scaled via the gaseous mixture, the filling quantity
of the balloon and the distance to the sensors. Pressure sensors were
set up around the balloon at various distances to measure the shock.
With the help of the high-speed recordings and the Rankine Hugoniot
equations, the shock front pressure was estimated and compared with
the results of the pressure sensors. In order to validate the results of
this test bench, they were compared with an experiment using plastic
explosive no. 4 . These agreed well with the results. Overall,A simple test bench was set up on the BAM test site to
investigate shock waves caused by gas detonations. The aim was to build
a simple mobile test bench that can be used for various applications, to
demonstrate the vaildity and for comparison with other test benches. For
this purpose a balloon filled with acetylene and oxygen at atmospheric
pressure with an electric ignitor was used. The characteristics of the
shock waves can be scaled via the gaseous mixture, the filling quantity
of the balloon and the distance to the sensors. Pressure sensors were
set up around the balloon at various distances to measure the shock.
With the help of the high-speed recordings and the Rankine Hugoniot
equations, the shock front pressure was estimated and compared with
the results of the pressure sensors. In order to validate the results of
this test bench, they were compared with an experiment using plastic
explosive no. 4 . These agreed well with the results. Overall, symmetrical
undisturbed scalable shock waves can be generated with the setup. Only
the reproducibility, which is comparatively poor to open shock tubes due
to the influence of wind, had to be improved.…


| Autor*innen: | Marco Gerbeit |
|---|---|
| Koautor*innen: | Henrik Seeber, Dennis Grasse, Marcel Donner, Daniel Krentel |
| Dokumenttyp: | Vortrag |
| Veröffentlichungsform: | Präsentation |
| Sprache: | Englisch |
| Jahr der Erstveröffentlichung: | 2025 |
| Organisationseinheit der BAM: | 2 Prozess- und Anlagensicherheit |
| 2 Prozess- und Anlagensicherheit / 2.1 Sicherheit von Energieträgern | |
| DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
| Technik, Medizin, angewandte Wissenschaften / Chemische Verfahrenstechnik / Chemische Verfahrenstechnik | |
| Freie Schlagwörter: | BOS; Gas detonation; Shock waves |
| Themenfelder/Aktivitätsfelder der BAM: | Chemie und Prozesstechnik |
| Chemie und Prozesstechnik / Anlagensicherheit und Prozesssimulation | |
| Infrastruktur | |
| Infrastruktur / Security | |
| Veranstaltung: | 35th International Symposium on Shock Waves (ISSW35) |
| Veranstaltungsort: | Brisbane, Australia |
| Beginndatum der Veranstaltung: | 07.07.2025 |
| Enddatum der Veranstaltung: | 11.07.2025 |
| Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
| Datum der Freischaltung: | 25.07.2025 |
| Referierte Publikation: | Nein |
| Eingeladener Vortrag (wissenschaftliche Konferenzen): | Nein |

