半球型涡流发生器结构对污垢沉积的影响  

Effect of half spherical vortex generator structure parameters on fouling deposition

作　　者：张一龙[1] 王乐君[1] 王忠言[2] 徐志明[3] 

机构地区：[1]东北电力大学自动化工程学院,吉林吉林132012 [2]吉林省电力科学研究院有限公司,吉林长春130022 [3]东北电力大学能源与动力工程学院,吉林吉林132012

出　　处：《热科学与技术》2016年第2期160-165,共6页Journal of Thermal Science and Technology

基　　金：国家自然科学基金资助项目(51476025);东北电力大学博士科研基金资助项目(BSJXM-201513)

摘　　要：通过数值模拟的方法,研究半球型涡流发生器的结构参数变化对析晶污垢沉积过程的影响。考察了球窝半径、球凸半径、球窝与球凸圆心距以及布局对污垢热阻的影响。结果表明,经过模拟得出球凸半径变化对污垢热阻的影响高于球窝变化产生的影响。球窝前置时对污垢热阻的影响大于球凸前置时的影响。圆心距对污垢热阻的影响呈现波动变化的趋势。Through the numerical simulation method, the half spherical structure of vortex generator parameter change on the influence of crystallization fouling deposition process. The effects of the radius of the ball, the convex radius of the ball, the ball protruding from the center of the layout and the impact of fouling resistance were studied. The results show that the simulation results through ball convex radius changes affect fouling resistance is higher than the impact of the ball changes produced. When the ball is looking forward to the influence of the fouling resistance is greater than the ball protruding front. Impact on the trend away from the center fouling fluctuated changes.

关 键 词：涡流发生器 污垢热阻 析晶污垢 数值模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]