Keywords

Detonation, DDT

Abstract

This study investigates the lifecycle of a detonation event in a modular detonation
tube facility. It focuses on the mechanisms of deflagration-to-detonation transition
(DDT) and the effectiveness of a pressure relief system. With a stoichiometric
hydrogen-oxygen mixture, the research aims to characterize the effect of
interchangeable turbulator obstacles on the DDT process. By varying blockage
ratios and obstacle geometries in the pre-detonation section. This study identifies
how physical characteristics influence transition efficiency. The experimental data
collected includes pressure spikes and wave speed which were then used to
validate against the Chapman-Jouguet (CJ) theory at initial pressures of 350 Torr
and 760 Torr. The second phase of the study explores the design and efficacy of the
dump tank as a relief tool, specifically investigating the interaction between the
detonation wave and its behavior as it exhausts into the tank. Experiments
conducted at various initial pressures evaluate the dump tank’s capacity to absorb
and dissipate the extreme pressure loads generated by the detonation wave. With
the analysis of obstacle-driven acceleration and dissipation, this work provides a
comprehensive understanding of detonation tube dynamics. This study offers
significant insights into both the fundamental physics of flame acceleration and the
practical safety requirements for high-pressure detonation facilities, ensuring that
the pressure generated is effectively managed through optimized relief design.

Completion Date

2026

Semester

Spring

Committee Chair

Vasu, Subith

Degree

Master of Science in Aerospace Engineering (M.S.A.E.)

College

College of Engineering and Computer Science

Department

MAE

Document Type

Thesis

Identifier

DP0053301

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