The Influence of Oscillatory Fractions on Mass Transfer of Non-Newtonian Fluid in Wavy-Walled Tubes for Pulsatile Flow

4th International Conference on Advanced Engineering and Technology

Zhu, Donghui^1 ; Bian, Yongning^1

State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, 116024, China^1

关键词: Axisymmetric wave;    ELectrochemical methods;    Mass effects;    Mass transfer rate;    Non-Newtonian fluids;    Pipeline structure;    PIV measurements;    Wavy-walled tube;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/317/1/012005/pdf
DOI  :  10.1088/1757-899X/317/1/012005

来源: IOP

【 摘 要 】

The shape of pipeline structure, fluid medium and flow state have important influence on the heat transfer and mass effect of fluid. In this paper, we investigated the mass transfer behavior of Non-Newtonian fluid CMC solution with 700ppm concentration in five different-sized axisymmetric wave-walled tubes for pulsatile flow. It is revealed that the effect of mass transfer is enhanced with the increase of oscillatory fractions P based on the PIV measurements. Besides, mass transfer rate was measured by the electrochemical method in the larger oscillatory points rate range. It is observed that mass transfer rate increases with the increase in P and reached the maximum mass transfer rate at the most optimal oscillatory fractions Popt. After reaching the optimal oscillatory fractions Popt, the mass transfer rate decreases with increasing P.