【摘要】 在化工生产中，许多过程是以固、液、气群粒子在液休介质中运动的方式进行的。为了对群粒子的规律有一定的了解，许多研究者进行了单粒子运动的研究。本文试图对固、液、气单群粒子在液体介质中运动的规律进行探讨。首先推导了这类运动的准数议程，并在分析文献中有关单粒子及群粒子运动方程式的基础上，概括了对单粒子及群粒子运动的准数议程，比较这些方程中的一些指数，有助于研究这些运动的共性和特性。更多还原

【Abstract】 In this paper we discuss the equation of motion of single and multiple solid particles, drops and bubbles in the liquid medium. First, we derive an equation of motion (based on demensionless groups), then, after an analysis of the equations of single and multiple particles in the liquid medium present- ed in literature, we develop an unified equation of motion for single and multiple particles. For single particles Re=C. (Ga)x. (H)y. (We)s .( )T For solid particles S, T=0, turbulent region x =0.5, y=0.5; intermediate region x=2/3, y=2/3; laminar region x =1, y=1. For drops and bubbles S, T sometimes>0, turbulent region x=0.5, y=0.4; intermediate region x =0.78, y= 8/15; laminar region x = 1, y=0.8. The values of x, y for solid particles,drops and bubbles in tbe three regions are similar, but in the case of drops and bubbles the y value is lower. For multiple particles Re = C’. (Ga)x’ .( ) Y’. z. (We) s’. ( ) T’ For solid particles, S’, T’=0, turbulent region x’=0.5 , y’=0.5, z=2.5, inter mediate region x’=0.78, y’= 0.78, z=3.9 ; laminar region x’= 1, y’=1, z= 5. For drops S, T may not be 0, turbulent region x’=0.5, y’=0.4, z= 1.7. For bubbles the bubble diameter is difficult to determine, so x’, y’,z can not be obtained. In this case, the value of x’, y’ of solid particles and drops are similar, and the y’ value is also lower. The value of x, y for single particles is lamost identical to the x’, y’ for multiple particles.更多还原