Numerical simulation of a combined oxidation ditch flow using 3D k-εturbulence model

LUO Lin , LI Wei-min , DENG Yong-sen , WANG Tao


Received ,Revised , Accepted , Available online

Volume 17,2005,Pages 808-812

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The standard three dimensional(3D) k-ε 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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