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首页> 外文期刊>International Journal of Heat and Mass Transfer >Steady forced convection heat transfer from a heated circular cylinder to power-law fluids
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Steady forced convection heat transfer from a heated circular cylinder to power-law fluids

机译：从加热的圆柱体到幂律流体的稳定强制对流换热

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摘要

Forced convection heat transfer to incompressible power-law fluids from a heated circular cylinder in the steady cross-flow regime has been investigated numerically by solving the momentum and thermal energy equations using a finite volume method and the QUICK scheme on a non-uniform Cartesian grid. The dependence of the average Nusselt number on the Reynolds number (5 ≤ Re ≤ 40), power-law index (0.6 ≤ n ≤ 2) and Prandtl number (1 ≤ Pr ≤ 1000) has been studied in detail. The numerical results are used to develop simple correlations as functions of the pertinent dimensionless variables. In addition to the average Nusselt number, the effects of Re, Pr and n on the local Nusselt number distribution have also been studied to provide further physical insights. The role of the two types of thermal boundary conditions, namely, constant temperature and uniform heat flux on the surface of the cylinder has also been presented.
机译：通过在非均匀笛卡尔网格上使用有限体积方法和QUICK方案求解动量和热能方程，通过数值研究了稳态对流状态下从加热的圆柱体到不可压缩幂律流体的强迫对流传热。 。详细研究了平均努塞尔数对雷诺数（5≤Re≤40），幂律指数（0.6≤n≤2）和普朗特数（1≤Pr≤1000）的依赖性。数值结果用于开发简单的相关性，作为相关无量纲变量的函数。除了平均Nusselt数外，还研究了Re，Pr和n对局部Nusselt数分布的影响，以提供进一步的物理见解。还提出了两种类型的热边界条件的作用，即，恒定温度和圆柱表面上均匀的热通量。

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