X形浸入式水口对结晶器内钢水流动影响的数值模拟  

Numeric Simulation of Effect of X-Shape Submerged Nozzle on Flow of Molten Steel in Mold

作　　者：崔小朝[1] 刘梓才[1] 田新明[1] 林金保[1] 

机构地区：[1]太原科技大学工程力学系,太原030024

出　　处：《特殊钢》2005年第3期6-8,共3页Special Steel

基　　金：国家自然科学基金资助项目(编号50374051)

摘　　要：应用粘性流体力学的基本原理,采用专业流体力学软件FLUENT对1 60mm×1 60mm方坯连铸X形浸入式水口对结晶器内钢水流动的影响进行数值模拟,验证了X形浸入式水口浇注时,通过两块半椭圆形导流板上、下平面与倒锥形圆筒内腔围成的螺旋形导流通道的导向作用,使钢水以涡流形式进入到结晶器,能有效减轻钢水的冲击深度,有利于夹杂物、气泡聚集升浮和提高连铸效率。The numeric simulation of effect of X-shape submerged nozzle on flow of molten steel in a mold for 160 mm×160 mm concasting billet has been carried out by viscous fluid mechanics theory and CFD software Fluent. It was verified that during pouring with X-shape submerged nozzle, the vortex molten steel entering into mold by guide of vortex guidance channel which was formed with top and bottom surface of two semi-oval flow guidance plate and invert taper pipe to availably reduce impact depth, promote inclusion and gas bubble aggregating and floating off, and improve concasting efficiency.

关 键 词：浸入式水口 数值模拟 钢水流动 结晶器 X形 粘性流体力学 FLUENT 基本原理 方坯连铸 半椭圆形 导向作用 导流板 螺旋形 夹杂物 

分 类 号：TF777[冶金工程—钢铁冶金]