Instability mechanisms for thermocapillary flow in an annular pool heated from inner wall,International Journal of Heat and Mass Transfer

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Instability mechanisms for thermocapillary flow in an annular pool heated from inner wall
International Journal of Heat and Mass Transfer ( IF 5.0 ) Pub Date : 2018-12-01 , DOI: 10.1016/j.ijheatmasstransfer.2018.06.134
Hao Liu , Zhong Zeng , Linmao Yin , Long Qiao , Liangqi Zhang

Abstract The linear stability analysis of thermocapillary flow in an annular pool heated from inner wall was performed by using spectral element method. The physical instability mechanisms for different Prandtl numbers (Pr) ranging from 0.001 to 1.4 were studied by energy analysis under critical mode. We observed three instability types: (i) the Hopf (oscillatory) bifurcation with wavenumber k = 18 for Pr

中文翻译：

内壁加热环形水池中热毛细流动的不稳定性机制

摘要采用谱元法对内壁加热的环形水池中的热毛细管流动进行了线性稳定性分析。通过临界模式下的能量分析研究了不同普朗特数 (Pr) 范围从 0.001 到 1.4 的物理不稳定机制。我们观察到三种不稳定性类型：（i）对于 Pr，波数 k = 18 的 Hopf（振荡）分岔

更新日期：2018-12-01

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