Mixed Detonation-Deflagration Behavior of Hydrocarbon-based Rotating Detonation Engines

Conference · Sun Jul 28 00:00:00 EDT 2019 · 27th ICDERS

OSTI ID:1995347

Sato, Takuma ^[1]; Raman, Venkat

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1. University of Michigan, Aerospace Engineering

In this study, the focus is on the mixing and detonation processes within a model RDE configuration experimentally studied at Air Force Research Lab (AFRL), which is an annular configuration operating on ethylene fuel. In the simulations below, it is shown that due to the lower detonability of ethylene (compared to hydrogen) and the specifics of the mixing process, a hybrid detonation-deflagration mode persists within the combustor. In particular, a distributed combustion process driven by a weak azimuthal wave (roughly Ma 1.5) is observed.

• Research Organization: University of Michigan, Ann Arbor
• Sponsoring Organization: USDOE Office of Fossil Energy and Carbon Management (FECM)
• DOE Contract Number: FE0031228
• OSTI ID: 1995347
• Report Number(s): DOE-UMICH-FE0031228-018
• Journal Information: 27th ICDERS, Journal Name: 27th ICDERS
• Country of Publication: United States
• Language: English