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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-472-4

ISBN Online: 978-1-56700-471-7

3rd Thermal and Fluids Engineering Conference (TFEC)
March, 4–7, 2018, Fort Lauderdale, FL, USA

PROPAGATION OF A DETONATION WAVE IN SUPERSONIC CROSSFLOWS USING A PRE-DETONATOR

Get access (open in a dialog) pages 67-70
DOI: 10.1615/TFEC2018.asp.021715

要約

Detonation wave propagation in a hypersonic cross-flow wind tunnel was examined. Detonation waves are waves with a sonic condition behind the shock front and remain an unexplored area with a growing demand for technological applications in hypersonic aircraft. The objective of this work is to investigate the evolution of a detonation wave in a Mach 5 crossflow with varying CJ detonation conditions and observe the under-driven, over-driven, and quasi-stable propagation of the detonation wave. Initial reactant temperature and equivalence ratio are varied to tailor the CJ detonation conditions in the supersonic free stream. The current high-enthalpy combustor provides cross-flow Mach numbers up to Mach 5 and stagnation temperatures up to 1100K. A H2/O2 pre-detonator placed orthogonally to the supersonic free stream is used to initiate the detonation wave. High speed Schlieren imaging is utilized to observe the wave transfer from the pre-detonator to the supersonic mixture and understand detonation propagation mechanisms in a Mach 5 flow.