COMPETING PATTERNS IN A CONVECTIVE BINARY MIXTURE
COMPETING PATTERNS IN A CONVECTIVE BINARY MIXTURE
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DOI：
10.1103/physrevlett.57.2018
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发表时间：
1986-10-20
影响因子：
8.6
通讯作者：
STEINBERG, V
中科院分区：
文献类型：
--
作者：
MOSES, E;STEINBERG, V
本文介绍了分离比为正值时乙醇-水混合物中对流的模式观测和传热测量。接近发病时，对流表现出自己在一个固定的正方形图案与导热状态相比，可以忽略不计的热传输的变化。远离阈值，对流选择通常的卷结构与强烈的热传输的变化。在交叉区域，方形和滚动图案之间的竞争导致振荡。
Pattern observations and heat-transport measurements of convection in ethanol-water mixtures at positive values of the separation ratio ψ are presented. Close to onset, the convective flow manifests itself in a stationary square pattern with negligible change in heat transport compared with the conductive state. Far from threshold, convection selects the usual roll structure with a strong change in heat transport. In a crossover region, the competition between square and roll patterns leads to oscillations.