【作者】 谢洪勇； 张大为； 张礼鸣；

【Author】 Xie H Y, Zhang D W and Zhang L M(School of Chemical Kngineering, Dalian University of Technology, Dalian 116012, China)

【机构】 大连理工大学化工学院；

【摘要】 通过分析现有的层流、湍流及过渡状态下非球形颗粒及颗粒群阻力系数的实验与理论研究结果,给出了非球形颗粒及颗粒群自由沉降速度的理论计算公式,并对各种单一非球形颗粒及非球形颗粒群沉降速度的计算结果与现有的实验结果进行了比较。比较结果表明,所得到的非球形颗粒及颗粒群自由沉降速度的理论计算公式与实验结果符合的很好。更多还原

【Abstract】 By analyzing existing experimental and theoretical results for the terminal velocities of non-spherical particle and its disperse system, an analytical equation has been obtained for the terminal velocity of non-spherical particle and its disperse system. Comparisoas have been made on the terminal velocities between predicted and the existing experimental data, and the results showed that the equation gave satisfactory predictions for various kinds of non-spherical particles.更多还原