曹兴,于恒,刘宇飞,颜承璐,李庆领

• 1:青岛科技大学 机电工程学院，山东 青岛 266061

摘要(Abstract)：

以小管径/粒径比有序填充床为研究对象，分析了管径/粒径比对填充床流动与传热特性的影响规律，并应用场协同理论研究了床层内部不同物理量场之间的耦合协同关系。结果表明，颗粒填充通道内压力沿轴向的变化趋势在入口段、充分发展段及出口段各不相同，且不同管径/粒径比时均具有相似的规律。当雷诺数相同时，努塞尔数与阻力系数均随着管径/粒径比的增大而增加。同时，随着管径/粒径比的增大，速度场与温度梯度场之间的协同性变好，而速度场与压力梯度场之间的协同性变差。此外，拟合得到了适用于小管径/粒径比有序填充床的传热与阻力性能准则关联式，可为其合理设计及校核提供理论依据。

关键词(KeyWords)： 有序填充;小管径/粒径比;流动;传热;场协同

Abstract:

Keywords:

基金项目(Foundation): 山东省自然科学基金（ZR2018PEE017）；青岛市应用基础研究计划（17-1-1-17-jch）。

作者(Author): 曹兴,于恒,刘宇飞,颜承璐,李庆领

DOI: 10.3969/j.issn.1003-9015.2019.06.012

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