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Published on: June 1, 2022
Numerical simulation of a combined oxidation ditch flow using 3D k-epsilon turbulence model
Lin Luo1, Wei-min Li, Yong-sen Deng
1State Key Laboratory of Hydraulics, Sichuan University, Chengdu 610065, China. luolin@tsinghua.org.cn
Abstract:
The standard three dimensional(3D) k-epsilon turbulence model was applied to simulate the flow field of a small scale combined oxidation ditch. The moving mesh approach was used to model the rotor of the ditch. Comparison of the computed and the measured data is acceptable. A vertical reverse flow zone in the ditch was found, and it played a very important role in the ditch flow behavior. The flow pattern in the ditch is discussed in detail, and approaches are suggested to improve the hydrodynamic performance in the ditch.
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