IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 4 - HYDRO-ENVIRONMENT : Numerical Simulation of Multiphase Flow in Anaerobic Baffled Reactor
Numerical Simulation of Multiphase Flow in Anaerobic Baffled Reactor
Author : Donghui Zhou, Shiqiang Wu and Ze Wang
In this paper, a double flow model has been used to simulate the three-dimensional flow field in the anaerobic baffled reactor. The distribution of velocity and the solid holdup in the flow field are obtained. Shown by the simulation results, the left side of the baffle plates in each reaction chamber is the down flow chamber, and the flow rate of the down flow chamber is relatively uniform. The right side of the baffle plates is the upstream chamber, and the reflux phenomenon occurs in the middle of the upper class room. Due to the role of the gas which is generated from the bottom of the reactor, the velocity of flow in the upstream area is greater than that in drop flow area. Hydraulic dead zone in the ABR reactor is relatively small, and the distribution of sludge particle is relatively uniform. Most of the sludge particles will be trapped in the respective reaction chamber without the movement of water and gas flow to the other reaction chamber. The results show that the multiphase flow field for the anaerobic baffled reactor can be obtained by use of numerical simulation.
File Size : 393,227 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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