CFD simulation of transient velocity filed for wavy vortex flow in a Taylor reactor

被引：0

作者：

Yang H. ^{[1
]}

Yang X. ^{[1
]}

Bai Z. ^{[1
]}

Wang Y. ^{[2
]}

Gao F. ^{[2
]}

机构：

[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai

[2] Xi'an Modern Chemistry Research Institute, Xi'an

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2021年 / 40卷 / 11期

关键词：

Azimuthal waves; Taylor reactor; Vorticity; Wave height; Wave spectra;

D O I：

10.16085/j.issn.1000-6613.2020-2402

中图分类号：

学科分类号：

摘要：

The wavy vortex in the Taylor reactor has received widespread attention due to the existence of azimuthal waves and mass transfer between adjacent vortices. In the present study, a numerical study was developed for the wavy vortex flow in a Taylor reactor, of which the radius ratio was 0.83 and the aspect ratio was 46.07. Computational fluid dynamics (CFD) was utilized to investigate the flow field without and with an axial flow. The numerical predictions were compared favorable to the PIV measurements in the literature. The results suggested the azimuthal waves eliminated the axisymmetric of vortex structure, and resulted in the periodic variation of the vortex with the azimuthal position, including the vortex shape, position, and vortex vorticity. It also yielded the transient behavior of velocity. The introduction of an axial flow decreased the degree of the above periodic variation with the azimuthal position, changed the variation of the velocity with time, and stabilizes a more stable flow field. It was found the axial flow also affected the variation of tangential velocity with the time. The unsteady tangential velocity fluctuated with the vortex passage frequency and its higher harmonics. © 2021, Chemical Industry Press Co., Ltd. All right reserved.

引用

页码：6009 / 6018

页数：9

共 31 条

[1] TAYLOR G I., Stability of a viscous liquid contained between two rotating cylinders, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 102, 718, pp. 541-542, (1923)
[2] MOORE C., Characterization of a Taylor-Couette vortex flow reactor, (1994)
[3] YE L, CAI X S, TONG Z M., Progress of applications of Taylor-vortex flow reactor, Chemical Industry and Engineering Progress, 31, 9, pp. 1878-1884, (2012)
[4] BAIER G, GRAHAM M D, LIGHTFOOT E N., Mass transport in a novel two-fluid Taylor vortex extractor, AIChE Journal, 46, 12, pp. 1395-2407, (2000)
[5] JEON D H, SONG J-H, HONG J-P, Et al., Agglomeration of Li(NixMnyCoz)O2 particles in Couette-Taylor flow reactor, Journal of Industrial and Engineering Chemistry, 76, pp. 524-531, (2019)
[6] YOON S H, LIM J G, HONG J, Et al., Numerical simulation of ammonium perchlorate particles based on a population balance equation model in Taylor-Couette flow, Journal of Industrial and Engineering Chemistry, 89, pp. 280-287, (2020)
[7] SUBRAMANIAN M, KANNAN A, Photocatalytic degradation of phenol in a rotating annular reactor, Chemical Engineering Science, 65, 9, pp. 2727-2740, (2010)
[8] DUTTA P K, RAY A K., Experimental investigation of Taylor vortex photocatalytic reactor for water purification, Chemical Engineering Science, 59, 22, pp. 5249-5259, (2004)
[9] TEOH J H, THAMIZHCHELVAN A M, DAVOODI P, Et al., Investigation of the application of a Taylor-Couette bioreactor in the post-processing of bioprinted human dermal tissue, Biochemical Engineering Journal, 151, (2019)
[10] SANTIAGO P A, GIORDANO R D C, SUAZO C A T., Performance of a vortex flow bioreactor for cultivation of CHO-K1 cells on microcarriers, Process Biochemistry, 46, 1, pp. 35-45, (2011)

← 1 2 3 4 →