| Numerical simulation of a combined oxidation ditch flow using 3D k-εturbulence model |
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| 作者姓名： | LUO Lin LI Wei-min DENG Yong-sen WANG Tao |
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| 作者单位： | [1]State Key Laboratory of Hydraulics, Sichuan University, Chengdu 610065, China [2]College of Municipal Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China |
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| 基金项目： | The Specialized Research Fund for the Doctoral Program of Higher Education（ No. 20010610023） and the Sino-Finnish Scientific and Technological Cooperation Program |
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| 摘 要： | 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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| 关 键 词： | 废水处理 紊乱模型 数值模拟 3D模拟 氧化条件 |
| 文章编号： | 1001-0742（2005）05-0808-05 |
| 收稿时间： | 2004-11-10 |
| 修稿时间： | 2005-02-23 |
Numerical simulation of a combined oxidation ditch flow using 3D k-epsilon turbulence model. |
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| LUO Lin,LI Wei-min,DENG Yong-sen,WANG Tao.Numerical simulation of a combined oxidation ditch flow using 3D k-epsilon turbulence model.[J].Journal of Environmental Sciences,2005,17(5):808-812. |
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| Authors: | LUO Lin LI Wei-min DENG Yong-sen and WANG Tao |
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| Institution: | State Key Laboratory of Hydraulics, Sichuan University, Chengdu 610065, China. luolin@tsinghua.org.cn |
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| 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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| Keywords: | oxidation ditch 3D simulation turbulence flow |
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