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首页> 外文期刊>International Journal of Heat and Mass Transfer >Conjugate natural convection heat transfer in an inclined square cavity containing a conducting block
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Conjugate natural convection heat transfer in an inclined square cavity containing a conducting block

机译：在包含传导块的倾斜方腔中共轭自然对流换热

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摘要

The present work is concerned with computation of natural convection flow in a square enclosure with a centered internal conducting square block both of which are given an inclination angle. Finite volume method through the concepts of staggered grid and SIMPLE algorithm have been applied. Deferred QUICK scheme has been used to discretize the convective fluxes and central difference for diffusive fluxes. The problem of conjugate natural convection has been taken up for validating the code. The abrupt variation in the properties at the solid/fluid interface are taken care of with the harmonic mean formulation. Solution has been performed in the computational domain as a whole with proper treatment at the solid/fluid interface. Computations have been performed for Ra = 10~3-10~6, angle of inclination varying from 15° to 90° in steps of 15° and ratio of solid to fluid thermal conductivities of 0.2 and 5.0. Results are presented in terms of streamlines, isotherms, local and average Nusselt number.
机译：本工作涉及在具有中心内部导电正方形块的正方形外壳中自然对流的计算，这两个块均具有一个倾斜角。运用了交错网格概念的有限体积法和SIMPLE算法。延迟QUICK方案已用于离散对流通量和扩散通量的中心差。共轭自然对流问题已被用于验证代码。固体/流体界面处特性的突然变化可通过调和平均公式来解决。整个解决方案已在整个计算域中执行，并在固体/流体界面进行了适当处理。对于Ra = 10〜3-10〜6，已经进行了计算，倾斜角从15°到90°以15°的步长变化，并且固体与流体的热导率之比为0.2和5.0。结果以流线，等温线，局部和平均努塞尔数表示。

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