A mathematical model of argon gas flow in a slot plug was developed to investigate the flow parameters of the argon gas at the exit of the slot plug. Gas compressibility and the heat transfer between argon gas and the plug have been considered in the model. The simulated velocity and density of argon gas at the plug exit were different from the calculated results obtained in previous studies. Velocity measurements of the argon gas at the exit verified the simulated results. Another mathematical model of argon gas stirring in a ladle with velocities and densities of the injected argon gas at the plug exit from the simulation and previous studies was established. The results of the model of argon gas stirring showed that the velocity and density of the argon gas at the plug exit affect the simulated results of the velocity of molten steel and the uniformity of the velocity distribution of the molten steel.

建立了缝塞内氩气流动的数学模型，以研究缝塞出口处氩气的流动参数。在模型中考虑了气体可压缩性以及氩气和塞子之间的热传递。塞子出口处氩气的模拟速度和密度与先前研究中获得的计算结果不同。出口处氩气的速度测量结果验证了模拟结果。通过模拟和先前的研究，建立了在钢包中搅拌氩气的另一个数学模型，该模型具有在塞子出口处注入的氩气的速度和密度。