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A high temperature turbine blade heat transfer multilevel design platform
Numerical Heat Transfer, Part A: Applications ( IF 2 ) Pub Date : 2020-10-28 , DOI: 10.1080/10407782.2020.1835104
Songtao Wang 1 , Shouzuo Li 1 , Lei Luo 1 , Zhiqi Zhao 1, 2 , Wei Du 1 , Bengt Sundén 2
Affiliation  

Abstract In this work, a fast and efficiently design method has been introduced. This design process consists of the overall design and the detailed design. For the overall design, one-dimensional pipe-network computations are employed to obtain several design cases quickly at the beginning. Meanwhile the solid domain geometry and mesh with cooling structures, i.e., film holes, impingement holes, and ribs have been generated to carry out three-dimensional (3-D) heat conduction calculations. Based on the above, a detailed design has been performed by 3-D conjugate heat transfer calculations. The results show that both the average temperature and the mass flow maximum errors between the pipe-network and 3-D conjugate heat transfer calculations are about 10%. In this article, the cooling structure of a gas turbine blade is designed with this platform. The final design results show that the maximum dimensionless temperature on the blade surface is 0.813, i.e., lower than the design requirement. The dimensionless mass flow rate in the first cooling inlet is 0.0168, and the mass flow rate in the secondary inlet is 0.0231.

中文翻译:

一种高温涡轮叶片传热多级设计平台

摘要 在这项工作中,介绍了一种快速有效的设计方法。这个设计过程包括总体设计和详细设计。对于整体设计,一开始就采用一维管网计算快速获得多个设计案例。同时生成具有冷却结构的实体域几何和网格,即薄膜孔、冲击孔和肋,以进行三维(3-D)热传导计算。在此基础上,通过 3-D 共轭传热计算进行了详细设计。结果表明,管网和3-D共轭传热计算之间的平均温度和质量流量最大误差约为10%。本文利用该平台设计了燃气轮机叶片的冷却结构。最终设计结果表明,叶片表面无量纲最高温度为0.813,低于设计要求。第一冷却入口无量纲质量流量为0.0168,第二冷却入口质量流量为0.0231。
更新日期:2020-10-28
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