摘要
本文以小米和两种硅胶为物料,在314×25mm的二维射流流化床中,用摄像法研究侧向射流穿透深度,并得到了关联式,误差小于25%.当射流倾角变化范围不大、并忽略射流位置的影响时,可以得到简化公式,误差小于40%使用基于对流体模型的计算机程序进行模拟,分析了射流产生的机理,研究了射流气速、直径、倾角和位置对射流穿透深度的影响.模拟值和实验值较吻合.
Experimental investigation was made in a 314×25 mm two-dimensional gassolid jet fluidized bed containing millet or silica sand. The inclined jet penetration length was recorded by a video camera. From experimental data, a correlation equation was obtained, with a deviation below 25%. When the jets inclination angle is comparatively small, by neglecting the influence of jet position, a simplified equation can be obtained with average error below 40%. Numerical simulation was done by running a program based on a two-phase model.Different influences on the inclined jet penetration length was obtained and was compared with experimental data. The difference between the horrizontal and vertical jet was discussed.
出处
《化工冶金》
CSCD
北大核心
1996年第2期132-137,共6页