Effect of bevelled silo outlet in the flow rate during discharge

We investigate the effect of a bevelled (or slanted) outlet on the discharge rate of mono-sized spheres from a quasi-two-dimensional silo, using the discrete element method. In contrast to hopper discharges, where the bevelling is across the entire base of the container, we study a bevelled opening...

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Autores principales: Gago, Paula Alejandra, Madrid, Marcos Andrés, Boettcher, Stefan, Blumenfeld, Raphael, King, Peter
Formato: Articulo
Lenguaje:Inglés
Publicado: 2023
Materias:
Física
Química
DEM
Silo discharge
Bevelled silo outlet
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/159864
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-159864
record_format dspace
spelling I19-R120-10915-1598642023-11-07T20:07:24Z http://sedici.unlp.edu.ar/handle/10915/159864 Effect of bevelled silo outlet in the flow rate during discharge Gago, Paula Alejandra Madrid, Marcos Andrés Boettcher, Stefan Blumenfeld, Raphael King, Peter 2023 2023-11-07T14:43:06Z en Física Química DEM Silo discharge Bevelled silo outlet We investigate the effect of a bevelled (or slanted) outlet on the discharge rate of mono-sized spheres from a quasi-two-dimensional silo, using the discrete element method. In contrast to hopper discharges, where the bevelling is across the entire base of the container, we study a bevelled opening that is significantly smaller than the silo width and in which the slanting is limited to half a sphere diameter at the boundary of the outlet. We show that the bevelling increases the flow rate comparably to the inclination in hopper walls. Using Beverloo’s model, we relate this increase in rate to what we define as the ‘effective opening’ of the silo and analyse the velocity profiles associated with the discharges. We show that different openings, having effectively the same discharge rates, give rise to distinctly different internal dynamics in the silo. These results have the potential to aid industrial processes by fine-tuning and improving control of silo discharges, with a minimal impact on silo design, thus significantly reducing production and handling costs. Instituto de Física de Líquidos y Sistemas Biológicos Articulo Articulo http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Química
DEM
Silo discharge
Bevelled silo outlet
spellingShingle Física
Química
DEM
Silo discharge
Bevelled silo outlet
Gago, Paula Alejandra
Madrid, Marcos Andrés
Boettcher, Stefan
Blumenfeld, Raphael
King, Peter
Effect of bevelled silo outlet in the flow rate during discharge
topic_facet Física
Química
DEM
Silo discharge
Bevelled silo outlet
description We investigate the effect of a bevelled (or slanted) outlet on the discharge rate of mono-sized spheres from a quasi-two-dimensional silo, using the discrete element method. In contrast to hopper discharges, where the bevelling is across the entire base of the container, we study a bevelled opening that is significantly smaller than the silo width and in which the slanting is limited to half a sphere diameter at the boundary of the outlet. We show that the bevelling increases the flow rate comparably to the inclination in hopper walls. Using Beverloo’s model, we relate this increase in rate to what we define as the ‘effective opening’ of the silo and analyse the velocity profiles associated with the discharges. We show that different openings, having effectively the same discharge rates, give rise to distinctly different internal dynamics in the silo. These results have the potential to aid industrial processes by fine-tuning and improving control of silo discharges, with a minimal impact on silo design, thus significantly reducing production and handling costs.
format Articulo
Articulo
author Gago, Paula Alejandra
Madrid, Marcos Andrés
Boettcher, Stefan
Blumenfeld, Raphael
King, Peter
author_facet Gago, Paula Alejandra
Madrid, Marcos Andrés
Boettcher, Stefan
Blumenfeld, Raphael
King, Peter
author_sort Gago, Paula Alejandra
title Effect of bevelled silo outlet in the flow rate during discharge
title_short Effect of bevelled silo outlet in the flow rate during discharge
title_full Effect of bevelled silo outlet in the flow rate during discharge
title_fullStr Effect of bevelled silo outlet in the flow rate during discharge
title_full_unstemmed Effect of bevelled silo outlet in the flow rate during discharge
title_sort effect of bevelled silo outlet in the flow rate during discharge
publishDate 2023
url http://sedici.unlp.edu.ar/handle/10915/159864
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AT boettcherstefan effectofbevelledsilooutletintheflowrateduringdischarge
AT blumenfeldraphael effectofbevelledsilooutletintheflowrateduringdischarge
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