Numerical Simulation for Influence of Baffle Length on Hydraulic Characteristics in Radial Sedimentation Tanks

Authors

Wenli Wei, State Key Laboratory of Eco-Hydraulic Engineering in Shaanxi, Xi'an University of Technology, Xi'an 710048, China;
Zewei Zhang, State Key Laboratory of Eco-Hydraulic Engineering in Shaanxi, Xi'an University of Technology, Xi'an 710048, China;
Yunfei Hong, State Key Laboratory of Eco-Hydraulic Engineering in Shaanxi, Xi'an University of Technology, Xi'an 710048, China;
Yuling Liu, State Key Laboratory of Eco-Hydraulic Engineering in Shaanxi, Xi'an University of Technology, Xi'an 710048, China;

Abstract

Abstract: The VOF (volume of fluid) method was applied to track the free water surface, and the RNG turbulent model was used to close the two-phase flow time-averaged equations. The influence of inlet vertical baffle with different lengths on hydraulic characteristics in radial sedimentation tank was simulated and analyzed. The control equations were discretized using the finite volume method. Velocity and pressure were solved using the PISO (Pressure-Implicit with Splitting of Operators) algorithm. The research results show that: the long length feed flow baffle model has a smaller recirculation zone, better velocity field distribution than short length baffle, and the long length feed flow baffle model is conducive to improve sedimentation efficiency. The results can provide a reference for optimization design of an actual engineering of sedimentation tanks.

Recommended Citation

Wei, Wenli; Zhang, Zewei; Hong, Yunfei; and Liu, Yuling (2020) "Numerical Simulation for Influence of Baffle Length on Hydraulic Characteristics in Radial Sedimentation Tanks," Journal of System Simulation: Vol. 28: Iss. 4, Article 8.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss4/8

First Page

826

Revised Date

2015-04-26

DOI Link

https://doi.org/

Last Page

832

CLC

TP391.9

Recommended Citation

Wei Wenli, Zhang Zewei, Hong Yunfei, Liu Yuling. Numerical Simulation for Influence of Baffle Length on Hydraulic Characteristics in Radial Sedimentation Tanks[J]. Journal of System Simulation, 2016, 28(4): 826-832.