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首页> 外文期刊>Journal of Heat Transfer >Influence of Intense Symmetric Heating and Variable Physical Properties on the Thermo-Buoyant Airflow Inside Vertical Parallel-Plate Channels
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Influence of Intense Symmetric Heating and Variable Physical Properties on the Thermo-Buoyant Airflow Inside Vertical Parallel-Plate Channels

机译：强对称加热和可变物理特性对垂直平行平板通道内的热浮气流的影响

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摘要

This paper deals with the steady, laminar, and two-dimensional natural convection inside vertical parallel-plate channels with isoflux heating. The main objective of this paper is to assess the joint influence of intense heating and variable physical properties on the flow and heat transfer characteristics of the upward air. To capture the physics of the problem, the discretized conservation equations are solved by the finite-volume technique in an aggrandized computational domain that is much larger than the physical domain. Representative numerical results based on the FLUENT computer program are presented in terms of local quantities such as air velocity and temperature profiles, as well as global quantities such as the average heat transfer coefficients and mass flow rates, all in response to the controlling geometrical and thermal parameters. A detailed comparison of these results is made against those produced by the simple model limited to constant physical properties.
机译：本文利用等通量加热处理垂直平行板通道内的稳态，层流和二维自然对流。本文的主要目的是评估强烈加热和可变物理特性对向上空气的流动和传热特性的共同影响。为了捕获问题的物理性，离散化的守恒方程是通过有限体积技术在比物理域大得多的强化计算域中求解的。基于FLUENT计算机程序的代表性数值结果以局部量（例如空气速度和温度曲线）以及全局量（例如平均传热系数和质量流率）的形式给出，所有这些都响应于控制几何形状和热量参数。将这些结果与由限于恒定物理特性的简单模型所产生的结果进行了详细的比较。

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