Motion of Particles in Gases: Average Velocity and Pressure Loss

Abstract

A simplified physical model is developed for the motion of solid particles in gaseous streams confined by walls (channel or pipe flow). The equations of motion for the particle are solved and expressions for the average slip and pressure loss are developed. The pressure loss expression is supplemented with a statistically derived constant from a bank of approximately 1600 data. This pressure loss expression was compared with others, used by designers and was observed that it shows the lowest average error; the resulting standard deviation also compared favorably with that of other expressions used in the past.