π Volume 26, Issue 9
π ID: WMaYaLm
Authors
Nithitorn Kongkaew, Sunthorn Laaongnaun
Department of Materials Handling and Logistics Engineering, Faculty of Engineering, King Mongkutβs University of Technology North Bangkok
Abstract
There is extensive engineering literature concerning the prediction of pressure in a silo. The great majority of them are based on continuum theories. The friction between the stored material and the silo wall as well as the inclination of the hopper at its base are considered to be the most influential parameters for flow pattern within the silo. In this paper, the filling and discharge of a planar silo with a hopper at its base has been modelled using DEM. The DEM computations were analyzed to evaluate the wall pressure distribution at different stages during filling and discharge. Experimental results have been used to validate the computational numerical model. The spatial distribution and time history of the pressure acting on the vertical silo walls predicted by the DEM model are found to resemble well the test results.
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Nithitorn Kongkaew, Sunthorn Laaongnaun (2019).
"A Discrete Element Method numerical study of wall pressure for maize storage in a hopper-bottomed silo".
Wulfenia, 26(9).