边界条件对颗粒–流体对流传热的影响

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孙丽^1,2，张楠^1*，刘新华¹，范怡平²

1. 中国科学院过程工程研究所多相复杂系统国家重点实验室，北京 1001902. 中国石油大学(北京)重质油国家重点实验室，北京 102249

收稿日期:2019-01-22修回日期:2019-03-31出版日期:2019-12-22发布日期:2019-12-22
通讯作者:张楠

基金资助:国家自然基金重点联合项目;中国科学院战略性先导科技专项

Effect of boundary conditions on particle?fluid convection heat transfer

Li SUN^1,2, Nan ZHANG^1*, Xinhua LIU¹, Yiping FAN²

1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China2. State Key Laboratory of Heavy Oil, China University of Petroleum (Beijing), Beijing 102249, China

Received:2019-01-22Revised:2019-03-31Online:2019-12-22Published:2019-12-22

摘要/Abstract

摘要： 对单个球形颗粒与周围流体的对流传热进行数值模拟，考察了等温边界、等热流量边界和流固耦合边界条件的影响。结果表明，流固耦合边界和等温边界所得时均面积加权努塞尔数与经验公式计算结果基本一致，等热流量边界模拟结果大于其它两种边界条件结果。时间平均局部面积加权努塞尔数的分布表明，当流动稳定且不发生分离时，努塞尔数从前滞点到后滞点逐渐减小；当出现非稳态涡旋时，努塞尔数从前滞点到分离角附近逐渐减小并出现最小值，后逐渐增大直至后滞点。

引用本文

孙丽张楠刘新华范怡平. 边界条件对颗粒–流体对流传热的影响[J]. 过程工程学报, 2019, 19(6): 1075-1084.
Li SUN Nan ZHANG Xinhua LIU Yiping FAN. Effect of boundary conditions on particle?fluid convection heat transfer[J]. Chin. J. Process Eng., 2019, 19(6): 1075-1084.

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