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Evaluation of OH Emission for Determining Operation of a Rotating Detonation Engine

Conference · · AIAA Scitech 2019 Forum
DOI:https://doi.org/10.2514/6.2019-2252· OSTI ID:1808462
 [1];  [2]; ;  [2];  [2]
  1. University of Michigan, Ann Arbor; University of Michigan
  2. University of Michigan, Ann Arbor
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This work explores emission spectroscopy of an intermediate species of combustion as a diagnostics for the study of rotating detonation engines (RDEs), and in particular OH* emission in hydrogen/air operation, to evaluate combustion regions and modes. These measurements support the existence of non-ideal combustion before and after the wave passage, which critically impacts the stability and properties of the detonation wave. In addition, these measurements help the identification and understanding of the secondary wave systems that are found to affect the detonation wave, for example by affecting the spatio-temporal distribution of non-ideal combustion. In particular, time-resolved OH* emission was used to estimate the cycle phase-average distribution of the heat release over a detonation wave cycle. The analysis of the representative OH* emission profile, taken to be representative of the phase-average distribution of heat release, support the identification of non-ideal combustion regions in the cycle and the effects secondary waves have on the detonation wave.
Research Organization:
University of Michigan
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
DOE Contract Number:
FE0025315
OSTI ID:
1808462
Report Number(s):
DOE-UMICH-FE0025315-013
Conference Information:
Journal Name: AIAA Scitech 2019 Forum
Country of Publication:
United States
Language:
English

References (1)

Detonative propulsion journal January 2013

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