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首页> 外文会议>American Society of Mechanical Engineers(ASME) Summer Heat Transfer Conference(HT2005); 20050717-22; San Francisco,CA(UA) >INFLUENCE OF PARTITION LOCATION ON NATURAL CONVECTION IN A PARTITIONED ENCLOSURE
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INFLUENCE OF PARTITION LOCATION ON NATURAL CONVECTION IN A PARTITIONED ENCLOSURE

机译：分区外壳中分区位置对自然对流的影响

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摘要

In this study, Natural convection heat transfer and fluid flow of square partitioned enclosure with two partitions protruding centrally from the end walls of an enclosure have been analysed numerically using finite element method. The enclosure has opposite isothermal walls at different temperatures. The thickness and length of the partitions is fixed and equal to 1/10 and 1/4 of width of the enclosure respectively. Computation for Rayleigh number in the range of 10~4 to 10~6 has been conducted. The influence of different thermal boundary conditions at the end walls and at the partitions is included in the investigation. 'Standard' boundary conditions are introduced as more appropriate to simulate situations of practical engineering interest. To solve the relevant governing equations a segregated sequential solution algorithm is used after employing Boussinesq approximation. These equations after discretization were solved by using the tridiagonal matrix algorithm. Results clearly demonstrate that partition location has a significant effect on heat transfer.
机译：在这项研究中，自然对流换热和正方形隔板外壳的流体流动具有两个从隔板端壁中央突出的隔板，并使用有限元方法进行了数值分析。外壳在不同温度下具有相对的等温壁。隔板的厚度和长度是固定的，分别等于外壳宽度的1/10和1/4。已经进行了瑞利数在10〜4至10〜6范围内的计算。研究包括端壁和隔板处不同热边界条件的影响。引入“标准”边界条件更适合于模拟具有实际工程意义的情况。为了解决相关的控制方程，在采用Boussinesq逼近后，使用了隔离的顺序求解算法。离散化后的这些方程式使用三对角矩阵算法求解。结果清楚地表明，分隔位置对传热有重要影响。

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