| タイトル | Smoke Study of Nozzle Secondary Flows in a Low-speed Turbine |
| 本文（外部サイト） | http://hdl.handle.net/2060/19930083997 |
| 著者（英） | Allen, Hubert W; Kofskey, Milton G |
| 著者所属（英） | National Advisory Committee for Aeronautics. Lewis Flight Propulsion Lab. |
| 発行日 | 1954-11-01 |
| 言語 | eng |
| 内容記述 | Still and motion pictures were made of boundary-layer and wake secondary-flow phenomena visualized by smoke. Two annular cascades of turbine nozzles were used, both designed for constant discharge angle but differing in blade shape and suction-surface velocity distribution. Flows were similar to those obtained with pressure and angle measurements at near-sonic airspeeds. Boundary-layer cross-channel and trailing-edge radial flows caused vortices and an accumulation of low-momentum air at the hub, which may affect flow in following blade rows. Motion of a downstream rotor blade row produced pulsations in trailing-edge radial flow. The motion-picture supplement may be obtained on loan from NACA Headquarters, Washington, D.C. |
| レポートNO | 93R13287
NACA-TN-3260 |
| 権利 | No Copyright |
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