Traveling waves and spatial variation in the convection of a binary mixture.
Traveling waves and spatial variation in the convection of a binary mixture.
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二元混合物对流中的行波和空间变化。
DOI：
10.1016/0920-5632(87)90049-1
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
Cannell
中科院分区：
文献类型：
--
作者：
Heinrichs;Ahlers;Cannell
我们报告的测量热传输和阴影流动显示的二元混合物的分离比为0.12。除了从纯传导的霍普夫分叉，涉及一个单一的频率的行波状态的发展，并由少量的对流卷集中在侧壁附近，它是朝着移动。因此，大约60%的电池处于纯传导状态。在稍大的瑞利数处，行波变为由第二较低频率进行振幅调制。
We report measurements of heat transport and shadowgraph flow visualizations for binary mixture with separation ratio ψapeq2-0.12. Beyond a Hopf bifurcation from pure conduction, a traveling-wave state involving a single frequency develops and consists of a small number of convection rolls concentrated near the sidewall towards which it is moving. Thus about 60% of our cell is left in the pure conduction state. At a slightly larger Rayleigh number, the traveling wave becomes amplitude modulated by a second, lower frequency.