Prediction of mass transfer rates in spatially periodic flows
Prediction of mass transfer rates in spatially periodic flows
复制标题
空间周期流中传质速率的预测
DOI：
10.1016/s0009-2509(98)00234-6
复制
发表时间：
1999
影响因子：
4.7
通讯作者：
E. Lightfoot
中科院分区：
文献类型：
--
作者：
G. Baier;T. Grateful;M. Graham;E. Lightfoot
本文研究了传质边界层理论在空间周期性流动中的应用。数值方法被用来解决流动问题，并与传质边界层理论结合使用的解决方案来预测传质速率。这种方法是有利的，因为在大的施密特数下，浓度分布的数值解在边界层区域需要非常高的数值分辨率。对于两个原型流调查，管组流和泰勒-库埃特流，预测符合合理，以及与实验结果。因此，这种方法应该是有用的空间周期性系统的初步设计计算。
The application of mass transfer boundary layer theory to spatially periodic flows is investigated. Numerical methods are used to solve the flow problems, and the solutions are used in conjunction with mass transfer boundary layer theory to predict mass transfer rates. This approach is advantageous because at large Schmidt numbers numerical solution for the concentration profiles requires very high numerical resolution in the boundary layer region. For the two prototype flows investigated, tube bank flow and Taylor–Couette flow, the predictions agree reasonably well with the experimental results. As a result, this approach should be useful for preliminary design calculations in spatially periodic systems.