旋流滤清器流场理论研究

摘要

通过对旋流滤清器旋流分离室微元进行受力分析，应用牛顿第二定律、连续性方程推导出旋流分离室中三向速度微分方程，并应用激光多普勒测速仪（LDA）测得流场的结果，给出了旋流滤清器的半经验公式，对于实践具有一定指导的作用。%The force analysis on separation chamber infinitesimal of rotary-flow filter was done in this paper. Three-direc⁃tion velocity distribution differential equations of separation chamber were established according to the Newton's second law and continuity equation. Semi-empirical equation was derived on the basis of the measurement results by Laser Doppler Velocinetry, and the equation could be used to instruct the practice.