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首页> 外文期刊>Journal of Heat Transfer >Experimental Validation of Analytical Solutions for Vertical Flat Plate of Finite Thickness Under Natural-Convection Cooling
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Experimental Validation of Analytical Solutions for Vertical Flat Plate of Finite Thickness Under Natural-Convection Cooling

机译：自然对流冷却有限厚垂直平板解析解的实验验证

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摘要

The analytical solution for a vertical heated plate subjected to conjugate heat transfer due to natural convection at the surface and conduction below is presented. The heated surface is split into two regions; the uniform heat flux region toward upstream and remaining fraction as the uniform wall temperature region. The fractional areas under the two regions are considered variable. Adopting thermally thin wall regime approximation, the possible solutions were investigated and found to satisfactorily deal with longitudinal conduction and temperature variation in the transverse direction. A test setup was developed and the experiments were conducted to obtain relevant data for comparison with the analytical solutions. The ranges for Rayleigh number and heat conduction parameter (α) during various test conditions were 2 × 10~8-6 × 10~8, and 0.001-1, respectively. The limiting solutions for stipulated conditions are analyzed and compared with experimental data. Reasonable agreement is observed between the experimental and analytical results.
机译：提出了一种由于表面自然对流和下面的传导而经受共轭传热的垂直加热板的分析解决方案。被加热的表面分为两个区域：朝向上游的均匀热通量区域和其余部分作为均匀壁温区域。两个区域下的分数面积被认为是可变的。通过采用热薄壁状态近似，研究了可能的解决方案，并发现其可以令人满意地处理纵向传导和横向方向的温度变化。开发了测试装置，并进行了实验以获得与分析溶液进行比较的相关数据。在各种测试条件下，瑞利数和导热参数（α）的范围分别为2×10〜8-6×10〜8和0.001-1。分析了规定条件的极限解并将其与实验数据进行了比较。实验和分析结果之间观察到合理的一致性。

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