In this study, the flow dynamics of a Taylor–Couette flow with an axial distribution of temperature was experimentally investigated. The flow can be classified into three patterns based on the balance between the centrifugal force and the buoyancy. If the buoyancy is dominant, global heat convection is observed instead of Taylor vortices (Case I). When the buoyancy is comparable to the centrifugal force, the Taylor vortices and global heat convection appear alternately (Case II). If the centrifugal force is sufficiently high to suppress the buoyancy, stable Taylor vortices are observed (Case III). The characteristics of the mixing/diffusion are investigated by conducting a decolorization experiment on a passive tracer. In Case II, the tracer is rapidly decolorized in the presence of the global heat convection instead of the Taylor vortices. This result implies that the interaction between the centrifugal force and the buoyancy would induce an anomalous transport. © 2017 American Institute of Chemical Engineers AIChE J, 2017

中文翻译：

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轴向温度分布的Taylor–Couette流动反应器的流动动力学

在这项研究中，实验研究了轴向温度分布的泰勒-库埃特流的动力学。基于离心力和浮力之间的平衡，可以将流动分为三种模式。如果浮力占主导，则观察到整体热对流而不是泰勒涡流（案例I）。当浮力与离心力相当时，泰勒涡旋和整体热对流交替出现（案例II）。如果离心力足够高以抑制浮力，则观察到稳定的泰勒涡旋（情况III）。通过在无源示踪剂上进行脱色实验来研究混合/扩散的特性。在案例二中，示踪剂在存在整体热对流而不是泰勒涡流的情况下迅速脱色。该结果暗示离心力和浮力之间的相互作用将引起异常输送。©2017美国化学工程师学会AIChE的Ĵ，2017年