A numerical study on the non-Boussinesq effect in the natural convection in horizontal annulus
A numerical study on the non-Boussinesq effect in the natural convection in horizontal annulus
复制标题
水平环空自然对流非布辛涅斯克效应的数值研究
DOI:
10.1063/1.5010864
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发表时间:
2018-03
影响因子:
4.6
通讯作者:
Yuhui Cao
中科院分区:
文献类型:
--
作者:
Yu Zhang;Yuhui Cao
In the present study, the non-Boussinesq effect in the thermal convection in an air-filled horizontal concentric annulus is studied numerically by using the variable property-based lattice Boltzmann flux solver (VPLBFS), with the radial temperature difference ratio of 1.0, the radius ratio of 2.0, and the Rayleigh number in the range 104 ≤ Ra ≤ 106. Several solutions are obtained by using the standard form or simplified versions of the VPLBFS, including the real solution with the total variation in fluid properties considered, named as the variable property solution (VPS), the constant property solution (CPS) based on the Boussinesq approximation, the solution with variable dynamic viscosity (VVS), the solution based on the partial Boussinesq approximation (PBAS), the solution with variable thermal conductivity (VCS) and the solution with variable fluid density (VDS). The discrepancy between these solutions is analyzed to illuminate the influence of the non-Boussinesq effects induced by partial or total v...
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影响因子:
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作者:
Z. Zhong;Kwang-tzu Yang;J. Lloyd
通讯作者:
Z. Zhong;Kwang-tzu Yang;J. Lloyd
影响因子:
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作者:
P. Sabhapathy;K. C. Cheng
通讯作者:
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影响因子:
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作者:
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DOI:
10.1016/j.ijheatmasstransfer.2017.04.071
发表时间:
2017-08
影响因子:
5.2
作者:
Cao Yuhui;Zhang Yu
通讯作者:
Zhang Yu
DOI:
10.1016/j.ijheatmasstransfer.2017.05.025
发表时间:
2017-09
影响因子:
5.2
作者:
Cao Yuhui
通讯作者:
Cao Yuhui