铝合金旋转脉冲精炼过程气泡形成与运动(Ⅰ)——物理模拟  

Formation and Movement of the Bubbles during Refining Process of Aluminum Alloy by Rotary Pulse Ventilation,Part One,Physical Simulation

作　　者：吴士平[1] 王晔[1] 王惠[1] 王亮[1] 熊守美[2] 李立善 

机构地区：[1]哈尔滨工业大学金属精密热加工国家级重点实验室 [2]清华大学机械工程系 [3]新泰(辽宁)精密设备有限公司

出　　处：《特种铸造及有色合金》2013年第12期1083-1086,共4页Special Casting & Nonferrous Alloys

基　　金：国家科技支撑计划专题资助项目(2011BAE21B02)

摘　　要：以水为介质模拟合金熔体,采用高速摄影技术研究了旋转脉冲过程中气泡的形成及上升运动过程。结果表明,气泡的形成初期形貌为球形,气泡脱离时的直径与定子盘孔径成正比。气泡上升过程中,形貌由初生时的球状变为椭球形状,气泡沿曲线轨迹上升运动,气泡上升过程可能发生追赶聚并长大与碰撞聚并长大现象。The bubbles formation and ascending process during rotary pulse process were simulated with water as medium and using high-speed techniques for photography. The results show that the shape of bubbles exhibits spherical structure at initial stage of formation, and the bubble departure diameters are in proportion to aperture of stator disc. The bubbles morphology is changed from initially spherical to elliptic in ascending process which rises along the curve. In the process, the bubbles may present the phenomenon of chasing coalescence growth and collision coalescence growth.

关 键 词：旋转脉冲 精炼 气泡 运动规律 

分 类 号：TF821[冶金工程—有色金属冶金]