论文标题
楼梯形成不及时分层的双扩散手指对流
Staircase formation in unstably stratified double diffusive finger convection
论文作者
论文摘要
在具有稳定温度梯度和离子浓度的稳定梯度的流体层中对双扩散楼梯进行实验研究。温度和离子浓度的梯度保持在电化学系统内的稳态状态。即使密度分层不稳定，也可以观察到楼梯。在实验中无法识别先前提出的楼梯形成机制。通过手指的离子传输是楼梯的一部分，与通过整个牢房延伸的手指传输不同。如果相邻手指之间的扩散热传输不足，则手指不再存在。
Double diffusive staircases are investigated experimentally in a fluid layer with a stabilizing temperature gradient and a destabilizing gradient of ion concentration. Gradients of temperature and ion concentration are maintained in a steady state within an electrochemical system. Staircases are observed even if the density stratification is unstable. None of the previously proposed mechanisms for staircase formation can be recognized in the experiments. Ion transport through fingers which are part of a staircase is not the same as transport through fingers extending through the entire cell. Fingers cease to exist if the diffusive heat transport between neighboring fingers is insufficient.
