EFFECTS OF FREQUENCY OF VIBRATION ON THE SEGREGATION OF GRANULAR MATERIALS
Publication Date : 01/02/2014
The effect of frequency on the segregation of large spheres in a granular bed under vertical vibrations is studied. Segregation of granular materials is a problem of great consequence in industries involved with the handling and processing of granular materials in which homogeneity is generally required. In our experiments, we systematically measure rise times of the intruder particle as a function of frequency. The measurements reveal that: at constant acceleration the segregation was found to decrease in the frequency range of 20 - 40 Hz and then increases with increasing frequency. However, with increasing acceleration, the segregation decreases in the frequency range of 20 - 40 Hz and then starts to decrease exponentially with increasing frequency.
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