李亚子¹,雷勇刚¹,吕永康²,景胜蓝¹,王飞¹

• 1:太原理工大学 环境科学与工程学院，山西 太原 030024
• 2:太原理工大学 煤科学与技术教育部和山西省重点实验室，山西 太原 030024

摘要(Abstract)：

针对传统弓形折流板支撑多管束受限外流流动死区大，压降高的问题，提出新型斜百叶片折流板支撑多管束结构。通过全三维数值模拟，研究斜百叶片支撑多管束受限外流的传热和阻力特性，获得其局部流场，分析了不同斜百叶片倾角对其性能的影响。研究结果表明：斜百叶片支撑多管束受限外流流场分布均匀，流动死区小；与传统弓形折流板支撑的情况相比，压降减小17.1%~45.7%，功耗显著降低，且随斜百叶倾角减小而减小；倾角为45°时具有最优综合性能，相同压降下的传热系数比弓形折流板支撑的情况可提高25.9%。研究结果可为新型低功耗管壳式换热设备的开发和设计提供参考。

关键词(KeyWords)： 斜百叶片;数值模拟;受限外流;传热;阻力

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（U1510136）。

作者(Author): 李亚子¹,雷勇刚¹,吕永康²,景胜蓝¹,王飞¹

DOI: 10.3969/j.issn.1003-9015.2017.00.029

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