竖直上升转水平圆形弯管气固两相流动数值模拟  

Numerical Simulation For Two Phase Flow of Air & Solid in Vertically Up to Horizontal and Circular Bend

作　　者：黄士铮[1] 严祯荣[1] 

机构地区：[1]上海市特种设备监督检验技术研究院,上海200062

出　　处：《锅炉技术》2004年第5期9-11,53,共4页Boiler Technology

摘　　要：对竖直上升转水平圆形弯管内煤粉空气两相流场和浓度场进行数值模拟表明 ,弯管外侧壁脊线附近煤粉浓度明显比内侧高 ,验证了弯管的浓淡分离原理 ,为进一步实施提高浓淡分离效果的各种改造措施提供了理论依据。In a circular bend which is vertically up to horizontal, a numerical simulation for the two phase flow and concentration field of coal pulverized and air showed that the concentration near the back line of the outside in bend is higher than the concentration of the inside obviously. It verified the principle of formation and separation of pulverized coal in different concentration in circulaz bend and gave a basis of theory for measures to improve effect on separation of pulverized coal in different concentration.

关 键 词：圆形弯管 气固两相流动 数值模拟 

分 类 号：TK223.2[动力工程及工程热物理—动力机械及工程]