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首页> 外文期刊>Heat transfer >Free Convective Flow in an Open-Ended Vertical Porous Wavy Channel with a Perfectly Conductive Thin Baffle
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Free Convective Flow in an Open-Ended Vertical Porous Wavy Channel with a Perfectly Conductive Thin Baffle

机译：具有完美导电薄挡板的开放式垂直多孔波浪通道中的自由对流

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摘要

The problem of steady two-dimensional free convective flow of a Walters fluid (model B') in a porous medium between a long vertical wavy wall and parallel flat wall in the presence of a heat source is discussed. The channel is divided into two passages by means of a thin, perfectly conductive plane baffle and each stream will have its own pressure gradient and hence the velocity will be individual in each stream. The governing equations of the fluid and the heat transfer have been solved subject to the relevant boundary conditions by assuming that the solution consists of two parts: a mean part and disturbance or perturbed part. Exact solutions are obtained for the mean part and the perturbed part is solved using long wave approximation. Results are presented graphically for the distribution of velocity and temperature fields for varying physical parameters such as Grashof number, wall temperature ratio, porous parameter, heat source/sink parameter, product of non-dimensional wave number, and space-coordinate and viscoelastic parameter at different positions of the baffle. The relevant flow and heat transfer characteristics, namely, skin friction and the rate of heat transfer at both walls, has been discussed in detail.
机译：讨论了在热源作用下，沃尔特斯流体（B'型）在长垂直波状壁和平行平壁之间的多孔介质中稳定二维自由对流的问题。通道通过薄的，完全导电的平面挡板分成两个通道，每个流将具有自己的压力梯度，因此速度在每个流中将是独立的。假设解决方案由两部分组成：均值部分和扰动部分或扰动部分，则在相关边界条件下求解了流体和传热的控制方程。获得了均值部分的精确解，并使用长波逼近法求解了被摄动部分。结果以图形方式显示了不同物理参数（例如，格拉斯霍夫数，壁温比，多孔参数，热源/水槽参数，无量纲波数的乘积以及空间坐标和粘弹性参数）的速度和温度场的分布挡板的不同位置。已经详细讨论了相关的流动和传热特性，即两壁的皮肤摩擦和传热速率。

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