Publication: Memory effects in a gas of viscoelastic particles
dc.affiliation.dpto | UC3M. Departamento de Matemáticas | es |
dc.affiliation.grupoinv | UC3M. Grupo de Investigación: Modelización, Simulación Numérica y Matemática Industrial | es |
dc.contributor.author | Mompo Pavesi, Emanuel Gaston | |
dc.contributor.author | López Castaño, M. A. | |
dc.contributor.author | Lasanta Becerra, Antonio | |
dc.contributor.author | Vega Reyes, F. | |
dc.contributor.author | Torrente Orihuela, Ester Aurora | |
dc.contributor.funder | Ministerio de Ciencia, Innovación y Universidades (España) | es |
dc.contributor.funder | Agencia Estatal de Investigación (España) | es |
dc.date.accessioned | 2022-09-14T11:35:06Z | |
dc.date.available | 2022-09-14T11:35:06Z | |
dc.date.issued | 2021-06-01 | |
dc.description.abstract | We study a granular gas of viscoelastic particles (kinetic energy loss upon collision is a function of the particles' relative velocities at impact) subject to a stochastic thermostat. We show that the system displays anomalous cooling and heating rates during thermal relaxation processes, this causing the emergence of thermal memory. In particular, a significant Mpemba effect is present, i.e., an initially hotter/cooler granular gas can cool down/heat up faster than an in comparison cooler/hotter granular gas. Moreover, a Kovacs effect is also observed, i.e., a nonmonotonic relaxation of the granular temperature¿if the gas undergoes certain sudden temperature changes before fixing its value. Our results show that both memory effects have distinct features, very different and eventually opposed to those reported in theory for granular fluids under simpler collisional models. We study our system via three independent methods: approximate solution of the kinetic equation time evolution and computer simulations (both molecular dynamics simulations and direct simulation Monte Carlo method), finding good agreement between them. | en |
dc.description.sponsorship | This work has been partially funded by the Spanish Ministerio de Ciencia, Innovación y Universidades and the Agencia Estatal de Investigación through Grant Nos. MTM2017-84446-C2–2-R (A.L., E.M., and A.T.), FIS2017-84440-C2–2-P (A.T.), and FIS2016-76359-P. (F.V.R.). M.A.L.C. and F.V.R. also acknowledge support from the regional Extremadura Government through Project Nos. GR18079 and IB16087. Computing facilities from the Extremadura Research Centre for Advanced Technologies (CETA-CIEMAT) are also acknowledged. All grants and facilities were provided with partial support from the ERDF. | en |
dc.format.extent | 11 | |
dc.identifier.bibliographicCitation | Mompo Pavesi, E. G., López Castaño, M. A., Lasanta Becerra, A., Vega Reyes, F., & Torrente Orihuela, E. A. (2021). Memory effects in a gas of viscoelastic particles. Physics of Fluids, 33, 1-11. | en |
dc.identifier.doi | https://doi.org/10.1063/5.0050804 | |
dc.identifier.issn | 1070-6631 | |
dc.identifier.publicationfirstpage | 1 | |
dc.identifier.publicationissue | 6 | |
dc.identifier.publicationlastpage | 11 | |
dc.identifier.publicationtitle | Physics of Fluids | en |
dc.identifier.publicationvolume | 33 | |
dc.identifier.uri | https://hdl.handle.net/10016/35647 | |
dc.identifier.uxxi | AR/0000028751 | |
dc.language.iso | eng | |
dc.publisher | AIP | en |
dc.relation.projectID | Gobierno de España. MTM2017-84446-C2-2-R | es |
dc.relation.projectID | Gobierno de España. FIS2017-84440-C2-2-P | es |
dc.relation.projectID | Gobierno de España. FIS2016-76359-P | es |
dc.rights | © 2021 Author(s). Published under an exclusive license by AIP Publishing. | en |
dc.rights.accessRights | open access | en |
dc.subject.eciencia | Física | es |
dc.subject.other | Rigid body dynamics | en |
dc.subject.other | Thermal instruments | en |
dc.subject.other | Molecular dynamics | en |
dc.subject.other | Monte Carlo methods | en |
dc.subject.other | Computational fluid dynamics | en |
dc.subject.other | Viscoelasticity | en |
dc.subject.other | Mpemba effect | en |
dc.title | Memory effects in a gas of viscoelastic particles | en |
dc.type | research article | * |
dc.type.hasVersion | AM | * |
dspace.entity.type | Publication |
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