硝酸熔盐在石墨泡沫内的流动性能分析
收稿日期: 2017-01-21
修回日期: 2017-03-22
网络出版日期: 2017-04-28
基金资助
国家自然科学基金项目(51176173);
河南省科技攻关计划项目(162102210001)
Flow Characteristics of Molten Salt in Graphite Foam
Received date: 2017-01-21
Revised date: 2017-03-22
Online published: 2017-04-28
郭茶秀 . 硝酸熔盐在石墨泡沫内的流动性能分析[J]. 新能源进展, 2017 , 5(2) : 117 -121 . DOI: 10.3969/j.issn.2095-560X.2017.02.006
Based on the structure of a uniform packed bed of spherical particles and body-centered cell model, the micro flow region model is put forward to conduct the numerical analysis of the flow characteristics of molten salt in graphite foam. After the distributions of flow velocity and pressure of molten salt are obtained by COMSOL software, the relationship between the pressure gradient and the velocity is presented, and the influence of porosity on the pressure drop is got. The results show that the porosity and the structure of graphite foam are the main factors to account for the flow characteristics of graphite foam, and the bigger porosity could lead to a higher permeability.
Key words: computer fluid dynamic (CFD); cell model; graphite foam; porosity; permeability
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