Quasi-one dimensional modeling on vitiation effects for a dual-mode combustor

Junji Noda, Masaki Ohkoshi, Toshinori Kouchi, Goro Masuya, Sadatake Tomioka, Robert D. Rockwell, Christopher P. Goyne

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A three-flow-tube, quasi-one dimentional calculation was carried out to estimate modetransition fuel equivalence ratios under clean and vitiated inflow conditions. A simple flame holding model was used in the calculation. In cases of vitiated inflows, both total temperature and total enthalpy matched conditions to that of clean air were tested. Calculated wall pressure distributions were well matched to those of experimental values, qualitatively. Additionally, the ratio of mode-transition equivalence ratio of clean inflow divided by that of vitiated inflow was well matched to that of experimental value. Matched total enthalpy was effective to eliminate the inflow vitiation effects on mode-transition equivalence ratios in a case that thermal choking was attained at constant area exit. However, in a case that thermal choking was attained in the diverging region, matched total enthalpy was not effective.

Original languageEnglish
Title of host publication18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
Publication statusPublished - Dec 1 2012
Event18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012 - Tours, France
Duration: Sep 24 2012Sep 28 2012

Publication series

Name18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012

Other

Other18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
CountryFrance
CityTours
Period9/24/129/28/12

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ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering
  • Control and Systems Engineering

Cite this

Noda, J., Ohkoshi, M., Kouchi, T., Masuya, G., Tomioka, S., Rockwell, R. D., & Goyne, C. P. (2012). Quasi-one dimensional modeling on vitiation effects for a dual-mode combustor. In 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012 (18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012).