| タイトル | Optimization of Jet Mixing Into a Rich, Reacting Crossflow |
| 本文（外部サイト） | http://hdl.handle.net/2060/19980017168 |
| 著者（英） | Holdeman, J. D.; Leong, M. Y.; Samuelsen, G. S. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1997-12-01 |
| 言語 | eng |
| 内容記述 | Radial jet mixing of pure air into a fuel-rich, reacting crossflow confined to a cylindrical geometry is addressed with a focus on establishing an optimal jet orifice geometry. The purpose of this investigation was to determine the number of round holes that most effectively mixes the jets with the mainstream flow, and thereby minimizes the residence time of near-stoichiometric and unreacted packets. Such a condition might reduce pollutant formation in axially staged, gas turbine combustor systems. Five different configurations consisting of 8, 10, 12, 14, and 18 round holes are reported here. An optimum number of jet orifices is found for a jet-to-mainstream momentum-flux ratio (J) of 57 and a mass-flow ratio (MR) of 2.5. For this condition, the 14-orifice case produces the lowest spatial unmixedness and the most uniformly-distributed species concentrations and temperature profiles at a plane located one duct diameter length from the jet orifice inlet. |
| NASA分類 | Aircraft Propulsion and Power |
| レポートNO | NASA/TM-97-206294
E-10978
NAS 1.15:206294
AIAA Paper 98-0156 |
| 権利 | No Copyright |
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