Comparison Of Measured And Calculated Detonation Propagation Velocities From A Pre-Detonator In Supersonic Crossflow

Abstract

This investigation analyzes the data obtained from the use of a miniaturized detonation tube (pre-detonator) to inject a detonation wave into a combustible mixture at supersonic speeds. The propagation velocities of the detonation waves in the given conditions are measured and compared to Chapman-Jouguet values as a baseline. In the ongoing attempt to successfully stabilize and study an oblique detonation wave in the same facility, it is necessary to confirm that the detonation wave propagates as expected in various flow conditions, including different fuel-air ratio mixtures. Results show the propagation velocity is on the order of 31% to 66% of calculated CJ propagation velocity for mixture equivalence ratios ranging from 0.35 to 0.79.

Publication Date

1-1-2018

Publication Title

2018 Joint Propulsion Conference

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.2514/6.2018-4689

Socpus ID

85056078774 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85056078774

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