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首页> 外文OA文献 >Effect of Differentiated Injection Ratio, Gas Flow Rate, and Slag Thickness on Mixing Time and Open Eye Area in Gas-Stirred Ladle Assisted by Physical Modeling
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Effect of Differentiated Injection Ratio, Gas Flow Rate, and Slag Thickness on Mixing Time and Open Eye Area in Gas-Stirred Ladle Assisted by Physical Modeling

机译：通过物理造型辅助的分化注射率，气体流速和矿渣厚度对气搅拌钢包装中的混合时间和敞开眼部区域的影响

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In this work, the effects of equal (50%/50%) or differentiated (75%/25%) gas flow ratio, gas flow rate, and slag thickness on mixing time and open eye area were studied in a physical model of a gas stirred ladle with dual plugs separated by an angle of 180°. The effect of the variables under study was determined using a two-level factorial design. Particle image velocimetry (PIV) was used to establish, through the analysis of the flow patterns and turbulence kinetic energy contours, the effect of the studied variables on the hydrodynamics of the system. Results revealed that differentiated injection ratio significantly changes the flow structure and greatly influences the behavior of the system regarding mixing time and open eye area. The Pareto front of the optimized results on both mixing time and open eye area was obtained through a multi-objective optimization using a genetic algorithm (NSGA-II). The results are conclusive in that the ladle must be operated using differentiated flow ratio for optimal performance.
机译：在这项工作中，在一个物理模型中，研究了相同（50％/ 50％）或分化（75％/ 50％）或分化的（75％/ 25％）气体流量比，气体流速和矿渣厚度的效果气体搅拌填料，双插塞分隔180°。使用两级阶乘设计确定研究中的变量的效果。通过分析流动模式和湍流动能轮廓的分析来建立粒子图像速度（PIV），所研究的变量对系统流体动力学的影响。结果表明，分化的注射率显着改变了流动结构，极大地影响了混合时间和张开眼部区域的系统的行为。通过使用遗传算法（NSGA-II）的多目标优化获得混合时间和睁大眼区域的优化结果的Pareto前面。结果是结论，因为钢包必须使用差异化的流量比来操作以获得最佳性能。

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