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Simulation and Optimization of Fluid Field in Dilution Zone of Blow Tank |
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DOI:10.11981/j.issn.1000-6842.2015.02.48 |
Key Words:flat blow tank; CFD; propeller-agitator |
Fund Project:国家林业局公益性行业科研专项(201204804)。 |
Author Name | Affiliation | 许兰淑 | 北京林业大学, 北京, 100083 | 孙雅伟 | 北京林业大学, 北京, 100083 | 李 瑞* | 北京林业大学, 北京, 100083 |
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Abstract: |
The fluid situation in dilution zone of the blow tank with flat bottom was studied and the propeller-agitator was optimized using computational fluid dynamics (CFD) numerical simulation method. Through simulation, we obtained the distribution of velocity and viscosity fields of dilution zone in agitating process and the water ring between the pulp and the arc wall was vividly showed. After optimization, propeller-agitator with a guiding fluid sleeve could significantly improve propelling and agitating efficiency of the whole flow field under the same agitating speed. |
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