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Three-phase Fluid Numerical Simulation and water modeling experiment of Supersonic Oxygen Jet Impingement on Molten Bath in EAF

引用

Journal of Iron and Steel Research International 2014年第6期21卷 589-595页

作者： Shao-chun CHEN Rong ZHU Jing-she LI Chun-lai HE Ming Lü School of Mechanical Engineering and Automation Fuzhou University School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

By means of the computational fluid dynamics software Fluent 6.3, a mathematical model of three-dimensional three-phase fluid flow field in the molten bath of electric arc furnace （EAF） with side accessorial oxygen lances was developed to study the transient phenomena of oxygen jet impingement on the molten steel and the molten slag. The water modeling experiment was carried out to verify the simulation results. The impingement of the supersonic oxygen jet caused impact dent on the molten steel surface accordingly. The area of impact dent changed almost in linear relationship to flow rate of oxygen jet, which can be expressed by a deduced mathematical equation. And the relationship between the impact force of oxygen iet and the correspondingly formed apparent static pressure on molten bath was obtained, which was in linear relationship and a direct proportion, and can also be expressed by a deduced mathematical equation.

关键词： electric arc furnace oxygen jet three-phase fluid numerical simulation water modeling experiment

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water modeling of Optimizing Tundish Flow Field

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Journal of Iron and Steel Research International 2007年第3期14卷 13-19页

作者： LIU Jin-gang YAN Hui-cheng LIU Liu WANG Xin-hua Shougang Research Institute of Technology Beijing 100041 China Department of Metallurgical Technology Central Iron and Steel Research Institute Beijing 100081 China Metallurgical and Ecological Engineering School University of Science and Technology Beijing Beijing 100083 China

In the water modeling experiments, three cases were considered, i. e, , a bare tundish, a tundish equipped with a turbulence inhibitor, and a rectangular tundish equipped with weirs （dams） and a turbulence inhibitor. Comparing the RTD curves, inclusion separation, and the result of the streamline experiment, it can be found that the tundish equipped with weirs （dams） and a turbulence inhibitor has a great effect on the flow field and the inclusion separation when compared with the sole use or no use of the turbulent inhibitor or weirs （dams）. In addition, the enlargement of the distance between the weir and dam will result in a better effect when the tundish equipped with weirs （dam） and a turbulence inhibitor was used.

关键词： tundish flow field turbulence inhibitor weir dam water modeling experiment

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