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平行肋扰流通道是高温透平叶片常用的冷却结构。本文通过批量(约1000次)的气热耦合数值计算对不同几何结构平行肋扰流冷却通道的流动与耦合传热特性进行研究。研究表明,方向角60°～70°的平行肋会造成较强的旋涡结构,流动阻力最大;倾斜扰流肋制造的侧向流动旋涡强度较大并覆盖了多数的肋间区域时,肋间区域综合冷却效率最高。
Parallel ribbed flow channel is commonly used in high-temperature turbine blade cooling structure. In this paper, the flow and the coupled heat transfer characteristics of cooling channels with different geometry parallel to the cooling flow were studied by numerical simulation of the heat and mass coupling (about 1000 times). The results show that the parallel ribs with the angle of 60 ° -70 ° will cause stronger vortex structure and the maximum flow resistance. When the lateral flow vortex intensity of the inclined spoiler ribs is larger and covers most of the intercostal area, Regional comprehensive cooling efficiency is the highest.