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Experiments in dilution jet mixing
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Srinivasan, R. Berenfeld, A. Holdeman, J. D. |
| Copyright Year | 1983 |
| Description | Experimental results are given on the mixing of a single row of jets with an isothermal mainstream in a straight duct, to include flow and geometric variations typical of combustion chambers in gas turbine engines. The principal conclusions reached from these experiments were: at constant momentum ratio, variations in density ratio have only a second-order effect on the profiles; a first-order approximation to the mixing of jets with a variable temperature mainstream can be obtained by superimposing the jets-in-an isothermal-crossflow and mainstream profiles; flow area convergence, especially injection-wall convergence, significantly improves the mixing; for opposed rows of jets, with the orifice centerlines in-line, the optimum ratio of orifice spacing to duct height is one half of the optimum value for single side injection at the same momentum ratio; and for opposed rows of jets, with the orifice centerlines staggered, the optimum ratio of orifice spacing to duct height is twice the optimum value for single side injection at the same momentum ratio. |
| File Size | 1172856 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830022122 |
| Archival Resource Key | ark:/13960/t3c01165x |
| Language | English |
| Publisher Date | 1983-06-29 |
| Access Restriction | Open |
| Subject Keyword | Aerodynamics Density Mass/volume Temperature Distribution Ducts Gas Turbine Engines Momentum Spacing Injection Convergence Ratios Jet Mixing Flow Orifices Orifice Flow Cross Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
