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| Automatic Generation of Structured Mesh for Agitators and Its Application in CFD Simulation |
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Received:June 14, 2024
Revised:July 22, 2024
Accepted:July 22, 2024
Published Online:March 18, 2025
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| DOI：doi：10.20237/j.issn.1007-7545.2025.04.027 |
| KeyWord:agitator; structured mesh; digitization; CFD simulation |
| Author | Institution |
| CHEN Siyuan |
北京科技大学绿色低碳钢铁冶金全国重点实验室 |
| ZHANG Jiangshan |
北京科技大学绿色低碳钢铁冶金全国重点实验室 |
| LIU Meng |
矿冶科技集团有限公司 |
| SUN Guanyong |
矿冶科技集团有限公司 |
| LIU Qing |
北京科技大学绿色低碳钢铁冶金全国重点实验室 |
| YANG Shufeng |
北京科技大学绿色低碳钢铁冶金全国重点实验室 |
| LI Jingshe |
北京科技大学绿色低碳钢铁冶金全国重点实验室 |
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| Abstract: |
| Agitators are widely used in the mining and metallurgical field, such as the extraction of Cu, Pb, Zn, etc., and the pre-desulfurization of hot molten iron, CFD simulation of agitators is an important means of designing and optimizing agitators, but the efficiency of geometric model establishment and structured mesh generation in the preprocessing stage of the entire CFD simulation process is relatively low. A preprocessing program was developed using the programming language Python and open source software OpenFOAM, which is suitable for the parameterized automatic generation of geometric model and high-quality structured mesh for agitator. By only the inputting geometric/meshing parameters related to the agitator, the geometric model and high-quality structured mesh can be automatically generated, and the entire process is fast and highly automated. Taking various blade types of agitators as examples, the rapid generation, modification, and updating of models and structured meshes were demonstrated. Among them, generating geometric model and 140000 structured grids for KR agitators only takes four seconds, and the quality of the grids are all above 0.7. The efficiency and accuracy of using this mesh for CFD simulation are higher than those reported in the literature. This study significantly improves the efficiency of CFD simulation for agitators, and is expected to support the independent research and development of industrial software for design and efficient production in the engineering field in China. |
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