摘要(Abstract)：
根据沙漠砂在下降管蓄热器进行热能存储的工作原理,设计制作下降管蓄热器实验装置,对沙漠砂作为显热蓄热介质与空气对流实现热交换的流动性进行研究;应用ANSYS Fluent离散相模型,对粒径为0.18～0.25 mm的沙漠砂在下降管中与空气对流的流动状态进行数值仿真分析。结果表明,当空气流速为0.60～0.80 m/s时,沙漠砂在下降管主体部分达到受力平衡,气固两相流呈现均匀混合的稳定状态,砂粒匀速降落,分布均匀性最好。
关键词(KeyWords)： 多相流;数值分析;沙漠砂;下降管蓄热器
基金项目(Foundation): 国家自然科学基金项目(51666001);; 北方民族大学“宁夏低品位资源高值化利用及环境化工一体化技术”创新团队项目(20170714);北方民族大学研究生创新项目(YCX19118)
作者(Author): 马承渝,吕硕,朱桂花
DOI: 10.13349/j.cnki.jdxbn.20201010.004
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