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Global Convection Characteristics of Conical Taylor-Couette Flow with Shear-Thinning Fluids
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2021-09-02 , DOI: 10.1002/ceat.202100236 Hayato Masuda 1 , Hiroyuki Iyota 1 , Naoto Ohmura 2
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2021-09-02 , DOI: 10.1002/ceat.202100236 Hayato Masuda 1 , Hiroyuki Iyota 1 , Naoto Ohmura 2
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A method to intensify the mixing process of scalar components within shear-thinning fluids is proposed. A conical Taylor-Couette flow enabled fluid elements to circulate in the entire fluid column owing to the global circulation flow (i.e., meridional flow) for keeping good local mixing within Taylor cells. The global convection and mixing characteristics were numerically investigated. The meridional flow was found to be enhanced with increasing shear-thinning. In addition, the mixing performance was evaluated using a passive tracer. Global mixing with shear-thinning fluids was promoted by the enhanced meridional flow compared with that of Newtonian fluids. Therefore, the conical Taylor-Couette apparatus could be used for intensifying mixing processes in shear-thinning fluid systems.
中文翻译：
具有剪切稀化流体的锥形Taylor-Couette流的全局对流特性
提出了一种加强剪切稀化流体中标量组分混合过程的方法。由于全局循环流（即子午流），锥形泰勒-库埃特流使流体元素能够在整个流体柱中循环，以在泰勒单元内保持良好的局部混合。对全球对流和混合特性进行了数值研究。发现经向流随着剪切稀化的增加而增强。此外，使用被动示踪剂评估混合性能。与牛顿流体相比，增强的经向流动促进了与剪切稀化流体的整体混合。因此，锥形 Taylor-Couette 装置可用于加强剪切稀化流体系统中的混合过程。
更新日期：2021-10-20
中文翻译：
具有剪切稀化流体的锥形Taylor-Couette流的全局对流特性
提出了一种加强剪切稀化流体中标量组分混合过程的方法。由于全局循环流（即子午流），锥形泰勒-库埃特流使流体元素能够在整个流体柱中循环，以在泰勒单元内保持良好的局部混合。对全球对流和混合特性进行了数值研究。发现经向流随着剪切稀化的增加而增强。此外，使用被动示踪剂评估混合性能。与牛顿流体相比，增强的经向流动促进了与剪切稀化流体的整体混合。因此，锥形 Taylor-Couette 装置可用于加强剪切稀化流体系统中的混合过程。
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