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首页> 外文期刊>Applied Mathematical Modelling >Simulation of unsteady heat and mass transport with heatline and massline in a partially heated open cavity
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Simulation of unsteady heat and mass transport with heatline and massline in a partially heated open cavity

机译：在部分加热的开放式腔体中利用热线和质量线模拟不稳定的传热和传质

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摘要

A computational work is performed to investigate the transient heat and mass transfer inside a ventilated enclosure. The enclosure has two ventilation ports as inlet and outlet. Three different configurations are tested according to location of outlet ports while location of inlet port is fixed. In case 1, the outlet port is located on the top of the left vertical wall, in case 2 at the right and case 3 at the middle of the ceiling. Finite element method is employed to solve the governing equations of flow, heat and mass transfer. Also, the heat-line and massline techniques are used to visualize the heat and mass transfer patterns. Obtained results show the evolution of various contours of stream function, isotherms and iso-concentrations as well as various parameters such as Nu and Sc numbers. It is found in particular that in order to reach highest heat and mass transfer rates for Gr = 10~7, the outlet port should be located near the top of the left vertical wall. On the other hand, the effect of outlet location is insignificant for the lower values of Gr.
机译：进行了计算工作，以研究通风罩内部的瞬态热量和质量传递。机箱有两个通风口作为入口和出口。在固定进口位置的同时，根据出口位置测试三种不同的配置。在案例1中，出口位于左侧垂直壁的顶部，案例2在右侧，而案例3在天花板的中间。采用有限元法求解流动，传热和传质的控制方程。而且，热线和质量线技术用于可视化热和质量传递模式。获得的结果显示了流函数，等温线和等浓度以及各种参数（例如Nu和Sc数）的各种轮廓的演变。特别发现，为了在Gr = 10〜7时达到最高的传热和传质速率，出口应位于左侧垂直壁的顶部附近。另一方面，对于较低的Gr值，出口位置的影响微不足道。

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  • 来源
    《Applied Mathematical Modelling》 |2015年第6期|1597-1615|共19页
  • 作者

    M.M. Rahman; Hakan F. OEztop; S. Mekhilef; R. Saidur; J. Orfi;

  • 作者单位

    Mathematical and Computing Sciences Group, Faculty of Science, Universiti Brunei Darussalam, Brunei,Department of Mathematics, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh;

    Department of Mechanical Engineering, Technology Faculty, Firat University, Elazig, Turkey;

    Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;

    Department of Mechanical Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Heat and mass transfer; Unsteady; Open cavity; Massline; Heatline;

    机译：传热传质;不稳定开腔;Massline;热线;

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