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Empirical Description of Granular Flow Inside a Model Silo with Vertical Walls by Irena Sielamowicz; Michał Czech; Tomasz A. Kowalewski is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Empirical Description of Granular Flow Inside a Model Silo with Vertical Walls about?

DPIV (Digital Particle Image Velocimetry) is often used to record the flows in silo models and to recognise the flow in two-dimensional structures. Flow in a two-dimensional laboratory model with transparent walls was recorded using the DPIV technique. Recorded images were processed and the velocities of the flowing material were obtained. Statistical analysis of the readings taken from velocity profiles was also performed. To describe the flow the theoretical model of velocity presented in Choi, Kudrolli, and Bazant (2005) was modified. An empirical description of the flow rate was carried out. An analysis of the kinematic parameter b was carried out and compared to the solutions given by Medina, Co ́rdova, Luna, and Trevin ̃o (1998) and Choi et al. (2005). Comparisons between the experimental measurements and the empirical descriptions are presented. Comparing the Gaussian based kinematic model of Choi et al. ( ) and a modified empirical kinematic model, a better description of velocity was obtained by using the latter. In further comparisons using the two aformentioned models and a parabolic description the best description of velocity was given by the parabolic function. Flow

Who reads Empirical Description of Granular Flow Inside a Model Silo with Vertical Walls?

Author

Irena Sielamowicz; Michał Czech; Tomasz A. Kowalewski

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 1537-5110)

Published

2011

Language

EN

Field

Agricultural and Biological Sciences (Physical Sciences)