44959 20210121114455.0 doi 10.1103/PhysRevE.91.022808 sideral 93295 ART-2015-93295 eng Garcimartín, A. Flow and clogging of a sheep herd passing through a bottleneck 2015 Access copy available to the general public Unrestricted We present an experimental study of a flock passing through a narrow door. Video monitoring of daily routines in a farm has enabled us to collect a sizable amount of data. By measuring the time lapse between the passage of consecutive animals, some features of the flow regime can be assessed. A quantitative definition of clogging is demonstrated based on the passage time statistics. These display broad tails, which can be fitted by power laws with a relatively large exponent. On the other hand, the distribution of burst sizes robustly evidences exponential behavior. Finally, borrowing concepts from granular physics and statistical mechanics, we evaluate the effect of increasing the door size and the performance of an obstacle placed in front of it. The success of these techniques opens new possibilities regarding their eventual extension to the management of human crowds. info:eu-repo/grantAgreement/ES/MINECO/FIS2011-26675 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.252 2015 PHYSICS, MATHEMATICAL 6 / 53 = 0.113 2015 Q1 T1 PHYSICS, FLUIDS & PLASMAS 10 / 30 = 0.333 2015 Q2 T2 1.183 2015 Condensed Matter Physics 2015 Q1 Statistical and Nonlinear Physics 2015 Q1 Statistics and Probability 2015 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pastor, J.M. (orcid)0000-0003-0042-8800 Ferrer, L.M. Universidad de Zaragoza (orcid)0000-0002-2724-2785 Ramos, J.J. Universidad de Zaragoza Martín-Gómez, C. Zuriguel, I. 1009 617 Universidad de Zaragoza Dpto. Patología Animal Área Medicina y Cirugía Animal 91, 2 (2015), 022808 [7 pp.] Phys. rev., E Physical Review E 2470-0045 899334 http://zaguan.unizar.es/record/44959/files/texto_completo.pdf Versión publicada 138267 http://zaguan.unizar.es/record/44959/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:44959 articulos driver 2021-01-21-10:47:56 ARTICLE