Experimental proof of faster is slower in systems of frictional particles flowing through constrictions

The “faster-is-slower” (FIS) effect was first predicted by computer simulations of the egress of pedestrians through a narrow exit [D. Helbing, I. J. Farkas, and T. Vicsek, Nature (London) 407, 487 (2000)]. FIS refers to the finding that, under certain conditions, an excess of the individuals'...

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Autores principales: Pastor, Jose, Garcimartín, Angel, Gago, Paula, Peralta, Juan, Martín Gomez, Cesar, Ferrer, Luis, Maza, Diego, Parisi, Daniel, Pugnaloni, Luis, Zuriguel, Iker
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: American Physical Society 2018
Materias:
proof of faster-is-slower; frictional particles; constrictions
Acceso en línea:http://hdl.handle.net/20.500.12272/2828
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-2828
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic proof of faster-is-slower; frictional particles; constrictions
spellingShingle proof of faster-is-slower; frictional particles; constrictions
Pastor, Jose
Garcimartín, Angel
Gago, Paula
Peralta, Juan
Martín Gomez, Cesar
Ferrer, Luis
Maza, Diego
Parisi, Daniel
Pugnaloni, Luis
Zuriguel, Iker
Experimental proof of faster is slower in systems of frictional particles flowing through constrictions
topic_facet proof of faster-is-slower; frictional particles; constrictions
description The “faster-is-slower” (FIS) effect was first predicted by computer simulations of the egress of pedestrians through a narrow exit [D. Helbing, I. J. Farkas, and T. Vicsek, Nature (London) 407, 487 (2000)]. FIS refers to the finding that, under certain conditions, an excess of the individuals' vigor in the attempt to exit causes a decrease in the flow rate. In general, this effect is identified by the appearance of a minimum when plotting the total evacuation time of a crowd as a function of the pedestrian desired velocity. Here, we experimentally show that the FIS effect indeed occurs in three different systems of discrete particles flowing through a constriction: (a) humans evacuating a room, (b) a herd of sheep entering a barn, and (c) grains flowing out a 2D hopper over a vibrated incline. This finding suggests that FIS is a universal phenomenon for active matter passing through a narrowing.
format Artículo
publishedVersion
Artículo
author Pastor, Jose
Garcimartín, Angel
Gago, Paula
Peralta, Juan
Martín Gomez, Cesar
Ferrer, Luis
Maza, Diego
Parisi, Daniel
Pugnaloni, Luis
Zuriguel, Iker
author_facet Pastor, Jose
Garcimartín, Angel
Gago, Paula
Peralta, Juan
Martín Gomez, Cesar
Ferrer, Luis
Maza, Diego
Parisi, Daniel
Pugnaloni, Luis
Zuriguel, Iker
author_sort Pastor, Jose
title Experimental proof of faster is slower in systems of frictional particles flowing through constrictions
title_short Experimental proof of faster is slower in systems of frictional particles flowing through constrictions
title_full Experimental proof of faster is slower in systems of frictional particles flowing through constrictions
title_fullStr Experimental proof of faster is slower in systems of frictional particles flowing through constrictions
title_full_unstemmed Experimental proof of faster is slower in systems of frictional particles flowing through constrictions
title_sort experimental proof of faster is slower in systems of frictional particles flowing through constrictions
publisher American Physical Society
publishDate 2018
url http://hdl.handle.net/20.500.12272/2828
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