TITLE:
Flocculation Efficiency in Taylor-Couette Flow
AUTHORS:
Qing Chang, Yuhong Mao, Liyun Zeng, Changquan Yu
KEYWORDS:
Flocculation, PIV, Taylor-Couette Flow, Turbulent Flow, Water Treatment
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.4 No.1,
January
11,
2016
ABSTRACT: Velocity field data were acquired for
Taylor-Couette flow in the annulus gap between a rotating inner cylinder and a
fixed concentric outer cylinder by particle image velocimetry. The flocculation
efficiencies were also obtained in the same Taylor-Couette flow under the conditions
corresponding to the velocity field measurement. It was shown that the
flocculation efficiencies reach the maximum values due to the closed vortices
in WVF and their contraction and expansion with time, but out of WVF range, the
comparatively low flocculation efficiencies were obtained due to the no-closed
vortices connected with each other.