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首页> 外文期刊>International Journal of Heat and Mass Transfer >NATURAL CONVECTION OF A TWO-LAYER FLUID IN A SIDE-HEATED CAVITY
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NATURAL CONVECTION OF A TWO-LAYER FLUID IN A SIDE-HEATED CAVITY

机译：侧腔内两层流体的自然对流

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摘要

Comprehensive numerical computations are made of natural convection in a side-heated square cavity. Two layers of immiscible Boussinesq liquids are contained in the enclosure. Numerical solutions are acquired to the governing Navier-Stokes equation. No a priori assumptions are made on the shape and dynamical role of the interface. The behaviour of the interface is obtained as part of the solution. Attention is directed to the effect of a deformable interface and surface tension on the flow and heat transfer characteristics. Explicit influences of the capillary number and the Marangoni number are scrutinized. The global flow patterns are visualized, and local and averaged heat transfer coefficients along the wall are plotted. The limitations of the previous models using a non-deformable flat interface are pointed out.
机译：对侧加热方腔中的自然对流进行了全面的数值计算。外壳中包含两层不混溶的Boussinesq液体。获得了控制Navier-Stokes方程的数值解。没有对界面的形状和动力学作用进行先验假设。接口的行为是解决方案的一部分。注意可变形的界面和表面张力对流动和传热特性的影响。仔细研究了毛细管数和马兰戈尼数的显着影响。可视化整体流动模式，并绘制沿壁的局部和平均传热系数。指出了以前使用不可变形平面接口的模型的局限性。

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