Connecting micro- and macroscopic variables in the design of a granular stirrer using simulations
Predicting the mixing or segregation of granular of dense materials is difficult due to their athermal nature and lack of general theories. The goal of this research is to improve the design (diameter of the cylinder) and operation (rotational frequency of the screw conveyor) of the stirrer to attai...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-11-01
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| Series: | Frontiers in Soft Matter |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/frsfm.2023.1302367/full |
| _version_ | 1797450814424350720 |
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| author | Roberto Arévalo Roberto Arévalo |
| author_facet | Roberto Arévalo Roberto Arévalo |
| author_sort | Roberto Arévalo |
| collection | DOAJ |
| description | Predicting the mixing or segregation of granular of dense materials is difficult due to their athermal nature and lack of general theories. The goal of this research is to improve the design (diameter of the cylinder) and operation (rotational frequency of the screw conveyor) of the stirrer to attain good mixing. We characterize the mixing by some macroscopic measures and relate its behavior with the design parameters. Afterward, we compute some microscopic measurements that characterize the movement of the spheres and relate them with the operating conditions. The quality of mixing is found to depend on the rotation frequency of the screw conveyor and the gap between the latter and the enclosing cylinder. Besides, some relationships between micro- and macroscopic measures are drawn. This approach can provide guidance on the design or operation of devices to handle granular media when their microscopic behavior is previously known. |
| first_indexed | 2024-03-09T14:46:01Z |
| format | Article |
| id | doaj.art-019c7ba5bcf942a9a0ea1097ba189f8d |
| institution | Directory Open Access Journal |
| issn | 2813-0499 |
| language | English |
| last_indexed | 2024-03-09T14:46:01Z |
| publishDate | 2023-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Soft Matter |
| spelling | doaj.art-019c7ba5bcf942a9a0ea1097ba189f8d2023-11-27T06:27:51ZengFrontiers Media S.A.Frontiers in Soft Matter2813-04992023-11-01310.3389/frsfm.2023.13023671302367Connecting micro- and macroscopic variables in the design of a granular stirrer using simulationsRoberto Arévalo0Roberto Arévalo1CIRCE—Technology Center, Parque Empresarial Dinamiza, Zaragoza, SpainSTEAM, Universidad Europea de Valencia, Valencia, SpainPredicting the mixing or segregation of granular of dense materials is difficult due to their athermal nature and lack of general theories. The goal of this research is to improve the design (diameter of the cylinder) and operation (rotational frequency of the screw conveyor) of the stirrer to attain good mixing. We characterize the mixing by some macroscopic measures and relate its behavior with the design parameters. Afterward, we compute some microscopic measurements that characterize the movement of the spheres and relate them with the operating conditions. The quality of mixing is found to depend on the rotation frequency of the screw conveyor and the gap between the latter and the enclosing cylinder. Besides, some relationships between micro- and macroscopic measures are drawn. This approach can provide guidance on the design or operation of devices to handle granular media when their microscopic behavior is previously known.https://www.frontiersin.org/articles/10.3389/frsfm.2023.1302367/fullmixingidentical particlessimulationmicroscopic variablesmacroscopic measures |
| spellingShingle | Roberto Arévalo Roberto Arévalo Connecting micro- and macroscopic variables in the design of a granular stirrer using simulations Frontiers in Soft Matter mixing identical particles simulation microscopic variables macroscopic measures |
| title | Connecting micro- and macroscopic variables in the design of a granular stirrer using simulations |
| title_full | Connecting micro- and macroscopic variables in the design of a granular stirrer using simulations |
| title_fullStr | Connecting micro- and macroscopic variables in the design of a granular stirrer using simulations |
| title_full_unstemmed | Connecting micro- and macroscopic variables in the design of a granular stirrer using simulations |
| title_short | Connecting micro- and macroscopic variables in the design of a granular stirrer using simulations |
| title_sort | connecting micro and macroscopic variables in the design of a granular stirrer using simulations |
| topic | mixing identical particles simulation microscopic variables macroscopic measures |
| url | https://www.frontiersin.org/articles/10.3389/frsfm.2023.1302367/full |
| work_keys_str_mv | AT robertoarevalo connectingmicroandmacroscopicvariablesinthedesignofagranularstirrerusingsimulations AT robertoarevalo connectingmicroandmacroscopicvariablesinthedesignofagranularstirrerusingsimulations |