Beiträge in Tagungsbänden:

O. Barbir, J. Mathews:
"Silo centrifuge modeling - Influence of gravity on granular flow";
in: "Proceedings of the 7th Conference of Croatian Geotechnical Society with International Participation", 1; herausgegeben von: Croatian Geotechnical Society; Croatian Geotechnical Society, Zagreb, Kroatien, 2016, ISBN: 978-953-95486-5-8, S. 289 - 294.

Kurzfassung englisch:
The flow of granular material through an orifice has been a subject of numerous studies for decades due to its importance for proper industrial silo design. The most widely accepted law that predicts the flow rate of grains trough an orifice was proposed by Beverloo et al. (1961).
In this work an investigation into gravity discharge from silos in increased gravity conditions is presented. Increased gravity conditions were modelled in the geotechnical centrifuge, where the gravity was increased up to the factor of 15. It was shown that the mass flow rate as well as the local velocity of discharging is proportional to the square root of gravity and that the time required for a silo model to discharge cohesionless material scales with gravity. Analysis of the time required to discharge a silo leads to the observation of a scaling law for silo centrifuge models.

granular flow, silo design, centrifuge modelling, Beverloo equation

Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.