RT Journal Article
T1 When de hotter cools more quickly: Mpemba effect in granular fluids
A1 Lasanta Becerra, Antonio
A1 Vega Reyes, Francisco
A1 Prados, Antonio
A1 Santos, Andrés
AB Under certain conditions, two samples of fluid at different initial temperatures present a counterintuitive behavior known as the Mpemba effect: it is the hotter system that cools sooner. Here, we show that the Mpemba effect is present in granular fluids, both in uniformly heated and in freely cooling systems. In both cases, the system remains homogeneous, and no phase transition is present. Analytical quantitative predictions are given for how differently the system must be initially prepared to observe the Mpemba effect, the theoretical predictions being confirmed by both molecular dynamics and Monte Carlo simulations. Possible implications of our analysis for other systems are also discussed.
PB American Physical Society
SN 0031-9007 (print)
SN 1079-7114 (online)
SN 1092-0145 (CD-Rom)
YR 2017
FD 2017-10-06
LK https://hdl.handle.net/10016/25838
UL https://hdl.handle.net/10016/25838
LA eng
NO This work has been supported by the Spanish Ministerio de Economía y Competitividad Grants No. FIS2013-42840-P (A. L., F. V. R., and A. S.), No. FIS2016-76359-P (F. V. R. and A. S.), No. MTM2014-56948-C2-2-P (A. L.), and No. FIS2014-53808-P (A. P.), and also bythe Junta de Extremadura Grant No. GR15104, partially financed by the European Regional Development Fund (A. L., F. V. R., and A. S.). Computing facilities from Extremadura Research Centre for Advanced Technologies (CETA-CIEMAT) funded by the European Regional Development Fund are also acknowledged.
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RD 3 jun. 2024