1320 傾いたスリットから吹出しのある管内乱流の冷却効率と圧力損失  [in Japanese] Cooling Effectiveness and Pressure Drop in a Turbulent Channel Flow with Injection through an Inclined Slit  [in Japanese]

The experimental study has been performed on turbulent channel flow with injection through an inclined slit. The inclined angle is changed 30°, 60° and 90° at the main stream velocity 10m/s. The dimensionless injection flow rate is varied three steps in ranging 0.067∿0.200. The cooling effectiveness, wall static pressure are measured behind the slit. The cooling effectiveness increases with increasing the dimensionless injection flow rate. When the inclined angle is 30°, the effect of injection remains over long distance in the near-wall region, and the highest performance is obtained.