Numerical Study on Interfacial Structure and Mixing Characteristics in Converter Based on CLSVOF Method
The blowing flow is a key factor in molten bath stirring to affects the steel-bath interface fluctuation and chemical reaction in the top-bottom-blowing converter. The Volume of Fluid (VOF) method is widely used to capture the gas-liquid interface. However, some limitations exist in dealing with the...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-05-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/13/5/880 |
| _version_ | 1797599061115666432 |
|---|---|
| author | Fengsheng Qi Shuqi Zhou Liangyu Zhang Zhongqiu Liu Sherman C. P. Cheung Baokuan Li |
| author_facet | Fengsheng Qi Shuqi Zhou Liangyu Zhang Zhongqiu Liu Sherman C. P. Cheung Baokuan Li |
| author_sort | Fengsheng Qi |
| collection | DOAJ |
| description | The blowing flow is a key factor in molten bath stirring to affects the steel-bath interface fluctuation and chemical reaction in the top-bottom-blowing converter. The Volume of Fluid (VOF) method is widely used to capture the gas-liquid interface. However, some limitations exist in dealing with the interface curvature and normal vectors of the complex deformed slag-bath interface. The Coupled Level-Set and Volume of Fluid (CLSVOF) method uses the VOF function to achieve mass conservation and capture interface smoothly by computing the curvature and normal vector using the Level-Set function to overcome the limitations in the VOF model. In the present work, a three-dimensional (3D) transient mathematical model coupled CLSVOF method has been developed to analyze the mixing process under different injection flow rates and bottom-blowing positions. The results show that when the bottom-blowing flow rate increases from 0.252 kg/s to 0.379 kg/s, the mixing time in the molten bath gradually decreases from 74 s to 66 s. When the bottom-blowing flow rate is 0.252 kg/s, it is recommended to distribute the outer bottom-blowing position on concentric circles with D<sub>tuy</sub>,<sub>2</sub>/D<sub>2</sub> = 0.33. |
| first_indexed | 2024-03-11T03:30:23Z |
| format | Article |
| id | doaj.art-6f1e0a85cfcd4ac49ce794b41df51923 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T03:30:23Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-6f1e0a85cfcd4ac49ce794b41df519232023-11-18T02:27:09ZengMDPI AGMetals2075-47012023-05-0113588010.3390/met13050880Numerical Study on Interfacial Structure and Mixing Characteristics in Converter Based on CLSVOF MethodFengsheng Qi0Shuqi Zhou1Liangyu Zhang2Zhongqiu Liu3Sherman C. P. Cheung4Baokuan Li5School of Metallurgy, Northeastern University, Shenyang 110819, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaSchool of Engineering, RMIT University, Melbourne, VIC 3083, AustraliaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaThe blowing flow is a key factor in molten bath stirring to affects the steel-bath interface fluctuation and chemical reaction in the top-bottom-blowing converter. The Volume of Fluid (VOF) method is widely used to capture the gas-liquid interface. However, some limitations exist in dealing with the interface curvature and normal vectors of the complex deformed slag-bath interface. The Coupled Level-Set and Volume of Fluid (CLSVOF) method uses the VOF function to achieve mass conservation and capture interface smoothly by computing the curvature and normal vector using the Level-Set function to overcome the limitations in the VOF model. In the present work, a three-dimensional (3D) transient mathematical model coupled CLSVOF method has been developed to analyze the mixing process under different injection flow rates and bottom-blowing positions. The results show that when the bottom-blowing flow rate increases from 0.252 kg/s to 0.379 kg/s, the mixing time in the molten bath gradually decreases from 74 s to 66 s. When the bottom-blowing flow rate is 0.252 kg/s, it is recommended to distribute the outer bottom-blowing position on concentric circles with D<sub>tuy</sub>,<sub>2</sub>/D<sub>2</sub> = 0.33.https://www.mdpi.com/2075-4701/13/5/880converter steelmakingnumerical simulationmultiphase flowCLSVOF modelmixing time |
| spellingShingle | Fengsheng Qi Shuqi Zhou Liangyu Zhang Zhongqiu Liu Sherman C. P. Cheung Baokuan Li Numerical Study on Interfacial Structure and Mixing Characteristics in Converter Based on CLSVOF Method Metals converter steelmaking numerical simulation multiphase flow CLSVOF model mixing time |
| title | Numerical Study on Interfacial Structure and Mixing Characteristics in Converter Based on CLSVOF Method |
| title_full | Numerical Study on Interfacial Structure and Mixing Characteristics in Converter Based on CLSVOF Method |
| title_fullStr | Numerical Study on Interfacial Structure and Mixing Characteristics in Converter Based on CLSVOF Method |
| title_full_unstemmed | Numerical Study on Interfacial Structure and Mixing Characteristics in Converter Based on CLSVOF Method |
| title_short | Numerical Study on Interfacial Structure and Mixing Characteristics in Converter Based on CLSVOF Method |
| title_sort | numerical study on interfacial structure and mixing characteristics in converter based on clsvof method |
| topic | converter steelmaking numerical simulation multiphase flow CLSVOF model mixing time |
| url | https://www.mdpi.com/2075-4701/13/5/880 |
| work_keys_str_mv | AT fengshengqi numericalstudyoninterfacialstructureandmixingcharacteristicsinconverterbasedonclsvofmethod AT shuqizhou numericalstudyoninterfacialstructureandmixingcharacteristicsinconverterbasedonclsvofmethod AT liangyuzhang numericalstudyoninterfacialstructureandmixingcharacteristicsinconverterbasedonclsvofmethod AT zhongqiuliu numericalstudyoninterfacialstructureandmixingcharacteristicsinconverterbasedonclsvofmethod AT shermancpcheung numericalstudyoninterfacialstructureandmixingcharacteristicsinconverterbasedonclsvofmethod AT baokuanli numericalstudyoninterfacialstructureandmixingcharacteristicsinconverterbasedonclsvofmethod |