| タイトル | Mean flowfields in axisymmetric combustor geometries with swirl |
| 著者（英） | Rhode, D. L.; Lilley, D. G.; Mclaughlin, D. K. |
| 著者所属（英） | Oklahoma State Univ.|Dynamics Technology, Inc. |
| 発行日 | 1982-01-01 |
| 言語 | eng |
| 内容記述 | Six flowfield configurations are investigated with sidewall angles of 90 and 45 deg, and swirl vane angles of 0, 45, and 70 deg. It is found that central recirculation zones occur for the swirling flow cases investigated, which extend from the inlet to x/D = 1.7, where x is the axial polar coordinate, and D is the test section diameter. Five-hole pitot probe pressure measurements are used to determine time-mean velocities, and corresponding flow situations are predicted and compared to results of experimental data. Excellent agreement is found for the nonswirling flow, although poor agreement is found for swirling flow cases, especially near the inlet. The discrepancy is attributed to the lack of realism in the turbulence model, and/or to inaccurate specification of time-mean velocity and turbulence energy distributions at the inlet. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 82A17824
AIAA PAPER 82-0177 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/412566 |
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