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首页> 外文期刊>Chemical Engineering Science >LOCAL AND GLOBAL DISPERSION EFFECTS IN COUETTE-TAYLOR FLOW .1. DESCRIPTION AND MODELING OF THE DISPERSION EFFECTS
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LOCAL AND GLOBAL DISPERSION EFFECTS IN COUETTE-TAYLOR FLOW .1. DESCRIPTION AND MODELING OF THE DISPERSION EFFECTS

机译：库伊泰勒流中的局部和全局色散效应1。色散效应的描述和建模

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The Couette-Taylor flow (CTF) is a periodic flow with zero mean axial velocity. Its local and global dispersion behaviour has been investigated by recording the rate of tracer dispersion at the injection point. This allowed the demonstration of the existence of a strong inter-vortex Bur, thereby refuting the generally accepted concept of non-intermixing vortex units. The tracer responses depended strongly upon which specific part of the vortex was marked with tracer. This shows that the axial dispersion cannot be described by the single-parameter models presently used in the literature. A first principles two-parameter model, based upon the newly obtained insights, is proposed. It offers a unifying framework for all observations and resolves the contradictions encountered in the literature. The response dynamics of the model have been investigated to identify the possible parameter estimation strategies and in order to predict the long time limit behaviour. [References: 24]
机译：Couette-Taylor流（CTF）是平均轴向速度为零的周期性流。通过记录示踪剂在注入点的扩散速率，研究了其局部和整体扩散行为。这可以证明存在强烈的漩涡间Bur，从而驳斥了普遍接受的非混合漩涡单元的概念。示踪剂的响应在很大程度上取决于用示踪剂标记涡旋的哪个特定部分。这表明轴向色散不能用文献中目前使用的单参数模型来描述。基于新近获得的见解，提出了第一原理的两参数模型。它为所有观察提供了统一的框架，并解决了文献中遇到的矛盾。已经对模型的响应动力学进行了研究，以识别可能的参数估计策略，并预测长时间限制行为。 [参考：24]

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