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Unsteady conjugate heat/mass transfer from a circular cylinder in laminar crossflow at low Reynolds numbers

机译:低雷诺数下层流错流中圆柱体的非稳态共轭热/质量传递

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摘要

Unsteady conjugate heat/mass transfer between a circular cylinder and a surrounding fluid flow has been analysed. Numerical investigations were carried out for the cylinder Reynolds numbers equal to 2 and 20 and different values of the Prandtl/Schmidt numbers. The heat/mass balance equations were solved numerically in cylindrical coordinates by the ADI finite difference method. The computations yield information regarding the influence of the parameters that characterize the coupling features of the conjugate heat/mass transfer, i.e. the physical properties ratios, on Nusselt/ Sherwood numbers and cylinder dimensionless average temperature/concentration. The thermal/mass wake phenomenon were also studied.
机译:已经分析了圆柱体与周围流体之间不稳定的共轭热/质量传递。对圆柱雷诺数等于2和20以及Prandtl / Schmidt数的不同值进行了数值研究。通过ADI有限差分法在圆柱坐标系中数值求解热/质量平衡方程。计算得出有关表征共轭传热/传质耦合特征的参数的影响的信息,即物理性质比,对Nusselt / Sherwood数和圆柱无量纲平均温度/浓度的影响。还研究了热/质量唤醒现象。

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