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首页> 外文期刊>Journal of Heat Transfer >Influence of Crossflow-Induced Swirl and Impingement on Heat Transfer in an Internal Coolant Passage of a Turbine Airfoil
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Influence of Crossflow-Induced Swirl and Impingement on Heat Transfer in an Internal Coolant Passage of a Turbine Airfoil

机译:涡流和旋流对涡轮机翼内部冷却通道中传热的影响

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摘要

Detailed heat transfer distributions are presented inside a two-pass coolant channel with crossflow-induced swirl and impingement. The impingement and passage crossflow are generated from one coolant passage to the adjoining coolant passage through a series of straight or angled holes along the dividing wall. The holes provide for the flow turning from one passage to another typically achieved in a conventional design by a 180-deg U-bend. The holes direct the flow laterally from one passage to another and generate Different secondary flow patterns in the second pass. These secondary flows produce Impingement and swirl and lead to higher heat transfer enhancement.
机译:详细的传热分布显示在两通冷却剂通道内,该通道具有错流引起的涡流和撞击。冲击和通道横流是从一个冷却剂通道到相邻的冷却剂通道,沿着分隔壁通过一系列直孔或成角度的孔而产生的。这些孔提供了从一个通道到另一个通道的流动转换,这在常规设计中通常是通过180度U形弯曲实现的。这些孔将流体从一个通道横向引导到另一通道,并在第二个通道中产生不同的二次流型。这些二次流会产生撞击和涡流,并导致更高的传热效率。

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