High Prandtl number effect on Rayleigh-B,nard convection heat transfer at high Rayleigh number

被引:2
作者
Ma, Li [1 ]
Li, Jing [1 ]
Ji, Shui [1 ]
Chang, Huajian [1 ,2 ]
机构
[1] State Power Investment Cent Res Inst, Future Sci & Technol Pk, Beijing 102209, Peoples R China
[2] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
关键词
BENARD CONVECTION; TURBULENT CONVECTION;
D O I
10.1007/s00231-016-1849-7
中图分类号
O414.1 [热力学];
学科分类号
摘要
This paper represents results of the Rayleigh-B,nard convection heat transfer in silicon oil confined by two horizontal plates, heated from below, and cooled from above. The Prandtl numbers considered as 100-10,000 corresponding to three types of silicon oil. The experiments covered a range of Rayleigh numbers from 2.14 center dot 10(9) to 2.27 center dot 10(13). The data points that the Nusselt number dependents on the Rayleigh number, which is asymptotic to a 0.248 power. Furthermore, the experiment results can fit the data in low Rayleigh number well.
引用
收藏
页码:705 / 709
页数:5
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