多斜孔壁整体冷却效率实验研究
AN EXPERIMENTAL STUDY ON OVERALL COOLING EFFECTIVENESS OF INCLINED MULTIHOLE PLATES
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摘要: 采用近似模化技术,研究了多斜孔壁的整体冷却效率。试验了五种多斜孔壁结构形式,探讨了影响整体冷却效率的各种因素。研究结果表明：多斜孔壁绝热温比、多斜孔内部对流换热以及几何结构是影响该冷却方式的关键因素。本研究对多斜孔壁冷却形式的设计和优选,尤其在几何结构参数的确定方面,具有重要意义。Abstract: The overall cooling effectiveness of the inclined multihole plates was investigated through approximate simulation experiments.The plates had five different geometry configurations.The experimental results indicated that the convective heat transfer coefficient in the cooling hole,the adiabatic film effectiveness and geometrical configuration were the critical factors for the overall cooling effectiveness.The investigation plays an important role in designing the inclined multihole wall and selecting the geometry of these cooling configuration.
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Key words:
- Combustion chambers /
- Cooling efficiency /
- Experiments /
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