Abstract

This paper assumes that the pulsation speed of turbulent flow subjects to normal distribution, and thus develops the formula of classifying efficiency under influence of turbulence.The numerical value solution shows that the bigger turbulent degree leads the greater influence on efficiency, and this kind of influence is valid for powders of all sizes, but is not the origin of "fish-hook, effect".

Keywords：turbulent flow; air classification; classifying efficiency; normal distribution

DOI：10.13732/j.issn.1008-5548.1996.02.001