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Interaction Between Two Mutually Orthogonal Heat-Generating Baffles in a Square Cavity

机译：方腔中两个相互正交的生热挡板之间的相互作用

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摘要

Laminar free convection induced by two mutually orthogonal discrete heat-generating baffles in a two-dimensional square cavity is analyzed numerically. The computations were carried out for different locations and combinations of heat source strengths of the baffles for a fixed Grashof number of 106and Prandtl number of 0.71. The coupled governing equations were solved bya finite-difference method using alternating direction implicit technique and successive overrelaxation methods. The obtained results clearly show that the hydrodynamic and thermal fields in the cavity depend on both the location and strength of the heat-generating baffles. Though the flow inhibition is caused by both the baffles, the baffle with higher source strength plays a decisive role in inducing the flow. The locations of baffles with unequal source strengths produce significant changes in the net heat transfer rate. This is further magnified for higher contrast in source strengths. This study provides qualitative suggestions that may improve the thermal design of sealed enclosures, which are encountered frequently in the electronics industry.
机译：数值分析了两个相互正交的离散生热挡板在二维方腔内引起的层流自由对流。对于固定的Grashof数为106且Prandtl数为0.71的情况，对挡板的不同位置和热源强度的组合进行了计算。使用交替方向隐式技术和连续过松弛方法，通过有限差分法求解耦合的控制方程。所获得的结果清楚地表明，空腔中的流体动力场和热场取决于生热挡板的位置和强度。尽管两个挡板都引起了流动抑制，但是具有较高源强度的挡板在诱导流动中起着决定性的作用。源强度不相等的折流板位置会导致净传热速率发生重大变化。为了获得更高的光源强度对比度，这被进一步放大。这项研究提供了定性建议，可以改善在电子行业中经常遇到的密封外壳的散热设计。

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  • 来源
    《Heat Transfer Engineering》 |2017年第4期|244-255|共12页
  • 作者

    Shanmugam Saravanan; Abdul Kaffoor Abdul Hakeem; Palanigounder Kandaswamy;

  • 作者单位

    Department of Mathematics, Bharathiar University, Coimbatore, Tamil Nadu, India;

    Department of Mathematics, Bharathiar University, Coimbatore, Tamil Nadu, India;

    Department of Mathematics, Bharathiar University, Coimbatore, Tamil Nadu, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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