Abstract
The mechanism of suspension of particles in horizontal pneumatic conveying was studied by experimental and numerical analyses. It was found from experiment that the particles flowing in the duct were rotating at high speeds such as 1, 000 r. p. s. or more. A model based on the ellipsoid approximation of the particle shape was constructed and was applied to account for the irregular bouncing phenomena of nonspherical particles. Moreover, the real pneumatic transport process was simulated satisfactorily by introducing a random factor into the ellipsoid model.
