浮游界限速度的求解方法研究

Research of confirming float critical velocity in slurry

以固体颗粒在加速过程中发生的动量传递为出发点,确定了相互发生动量交换的清水、固体颗粒的质量及其速度变化量,及影响其动量变化的外界因素.通过理论分析建立了水平管道内各种速度之间的关系,并与推移质层厚度联合起来,根据推移质层厚度的变化确定浮游界限速度,并通过大量的实验验证了该方法得到的浮游界限速度比其他经验公式得到的浮游界限速度具有更广泛的适用性及准确、可靠性.

This paper is mainly based on momentum transfer of solid particles during acceleration, and ascertains the qualities and velocities changes of water and solid particles with each other during momentum change, including outside factors influencing their momentum change. Using theoretical analysis, this paper puts forward new formulas computing kinds of velocities of this slurry. It also combines a sliding layer, which ascertains the float critical velocity of a slurry according to a sliding layer changing. Experiments prove it to be more correct and credible than other experiential formulas.