The RH degassing process was widely used in the production the low carbon steel and the ultralow carbon steel, such as IF steels and silicon steels, due to its high efficiency on degassing, decarburization and inclusions removal. To investigate the interior phenomena during the metallurgical process, various physical models and mathematical models were established to simulate the internal behavior of metallurgical reactors. Using simulation methods was easy to implement and control. A 3D mathematical model was established to investigate the multiphase fluid flow in the RH refining process. The transient velocity distribution and the generation and the dissipation of the vortexes of the whole fluid domain were obtained. Further, the effect of the mesh on the fluid flow was studied by comparing the results calculated by four different meshes. The comparison showed that the deviation of the region with a larger local velocity introduced by mesh difference was larger than the deviation of that with a smaller local velocity. Thus, the selection of the suitable mesh was vital to the LES model to simulate the fluid flow accurately.
刘畅,任英,张立峰. 网格大小对RH精炼大涡模拟正确性的影响[J]. 中国冶金, 2018, 28(11S): 8-12.
LIU Chang,REN Ying,ZHANG Lifeng. Effect of large eddy simulation on fluid flow of RH degassing process[J]. China Metallurgy, 2018, 28(11S): 8-12.