Analysis of Combusting High-Pressure Monopropellant Sprays

T. W. Lee, J. P. Gore, G. M. Faeth, A. Birk

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


A simplified analysis of monopropellant spray combustion was developed, based on the locally-homogeneous-flow approximation of multiphase flow theory and the thin-flame approximation of turbulent premixed flame theory. The performance of the analysis was evaluated using shadowgraphs of spray flames for a hydroxyl ammonium nitrate (HAN)-hased liquid monopropellant at ambient pressures of 6–8 MPa. Predictions showed that these spray flames are very sensitive to the degree of flow development at the injector exit, with fully-developed turbulent flows requiring significantly smaller combustion volumes than slug flows having low initial turhulence levels. There was encouraging agreement between predictions and measurements; however, uncertainties concerning injector exit conditions for the experiments precluded definitive assessment of the analysis.

Original languageEnglish (US)
Pages (from-to)95-112
Number of pages18
JournalCombustion science and technology
Issue number4-6
StatePublished - Feb 1 1988
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology
  • General Physics and Astronomy


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