【摘要】 根据质量、动量和能量守恒等基本原理,建立了描述倾斜等直径长管中气粉两相流行为的一阶常微分方程组.数值计算结果表明:粉粒终速随管长增加而增大,粉粒终速随粉粒密度或粒径增加而减小;在质量流量比(λ<0.7)较小时,粉粒终速与质量流量比、管道倾斜角α无关.更多还原

【Abstract】 BAsed on the laws of conservation of mass,energy and momentus,a system of closed first-order ordinary differential equations is established to describe the behavior of gas-particle flow passing through inclined long duct with constant section.The numerical results of the calculation show that the terminal particle velocities are increasing with the length of duct and the velocities are decreasing with the increase of the particle’s density or size.The numerical results also show that the final particle velocities are independent of the mass flow ratio and inclined angle of the duct within the ranges of small mass flow ratio.更多还原