带有均匀加热内圆筒的梯形盖驱动空腔中的混合对流传热

IF 0.8 Q4 THERMODYNAMICS

Archives of Thermodynamics Pub Date : 2023-12-04 DOI:10.24425/ather.2023.147539

Asmaa Ali, Hussein

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引用次数: 0

摘要

本文利用Ansys软件进行数值分析，求解了水平盖驱动的梯形封闭体中圆柱周围的组合自由强迫对流问题。围栏里装满了水。上面的活动墙和下面的固定墙在恒温下是冷的，而倾斜墙是绝热的。均匀加热的气缸位于腔内的不同位置。研究涵盖了理查德森数的三个值(0.01、1和10)。结果表明:内热筒的位置对箱体内的流线和等温线、动壁、热壁和底壁的努塞尔数和摩擦系数有很大的影响;所得结果与前人的研究结果相吻合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Mixed convection heat transfer in trapezoidal lid-driven cavity with uniformly heated inner circular cylinder

The present work comprises a numerical analysis using the Ansys program to solve the problem of combined free-forced convection around a circular cylinder located in a horizontal lid-driven trapezoidal en-closure. The enclosure is ﬁlled with water. The upper moving wall and lower ﬁxed wall are cold at a constant temperature, whereas the inclined walls are adiabatically insulated. The uniformly heated cylinder is located at diﬀerent positions in the cavity. The study covers three values of Richardson number (0.01, 1, and 10). The results show that the streamlines and isotherms in the enclosure, the Nusselt number and friction factor in the moving wall, hot wall and bottom wall are strongly dependent on the position of the inner hot cylinder. The results are validated with previous work, and the comparison gives good agreement.

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来源期刊

Archives of Thermodynamics THERMODYNAMICS-

CiteScore

1.80

自引率

22.20%

发文量

期刊介绍： The aim of the Archives of Thermodynamics is to disseminate knowledge between scientists and engineers interested in thermodynamics and heat transfer and to provide a forum for original research conducted in Central and Eastern Europe, as well as all over the world. The journal encompass all aspect of the field, ranging from classical thermodynamics, through conduction heat transfer to thermodynamic aspects of multiphase flow. Both theoretical and applied contributions are welcome. Only original papers written in English are consider for publication.