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首页> 外文期刊>Journal of Chemical Engineering of Japan >Double-Diffusive Natural Convection between Vertical Parallel Walls—Experimental Study of Two-Layer Convection—
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Double-Diffusive Natural Convection between Vertical Parallel Walls—Experimental Study of Two-Layer Convection—

机译：垂直平行壁之间的双扩散自然对流—两层对流的实验研究—

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References(10) Cited-By(10) When a two-layer system consisting of water (upper layer) and an aqueous solution (lower layer) is heated from one side and cooled from the opposite side, convection begins in each layer and a sharp horizontal interface is formed by two flows circulating in opposite directions. The heat transfer soon appears to become approximately steady, but the mass transfer remains unsteady. When the concentration difference becomes small and the interface unstable, phenomena such as wavering of the interface and a large interface slope are observed. The fluid near the wall finally streams into the other layer and the two-layer system changes into a one-layer system.For a typical two-layer convection in the present study, the temperature was high at the top of a layer and low at the bottom of the layer. The concentration gradient was sharp at the interface. The concentration in a layer was almost uniform. The average concentration in the upper layer increased linearly with time.
机译：参考文献（10）By-By（10）当由水（上层）和水溶液（下层）组成的两层系统从一侧加热并从另一侧冷却时，对流在每一层中开始，并且锐利的水平界面是由沿相反方向循环的两个流形成的。传热似乎很快变得稳定，但是传质仍然不稳定。当浓度差变小并且界面不稳定时，观察到诸如界面摇动和界面斜率大的现象。壁附近的流体最终流入另一层，两层系统变成一层系统。对于本研究中典型的两层对流，温度最高的是一层，最高的是图层的底部。界面处的浓度梯度很明显。一层中的浓度几乎是均匀的。上层的平均浓度随时间线性增加。

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