Fluctuations of a piston on top of a fluidized granular gas

Brey Abalo, José Javier; Ruiz Montero, María José

doi:10.1063/1.3082270

Ponencia

dc.creator	Brey Abalo, José Javier	es
dc.creator	Ruiz Montero, María José	es
dc.date.accessioned	2020-09-11T09:06:14Z
dc.date.available	2020-09-11T09:06:14Z
dc.date.issued	2009
dc.identifier.citation	Brey Abalo, J.J. y Ruiz Montero, M.J. (2009). Fluctuations of a piston on top of a fluidized granular gas. En 10th Granada Lectures on Modeling and Simulation of New Materials (109-123), Granada, (España): American Institute of Physics.
dc.identifier.isbn	978-0-7354-0624-7	es
dc.identifier.issn	0094-243X (impreso)	es
dc.identifier.issn	1551-7616 (electrónico)	es
dc.identifier.uri	https://hdl.handle.net/11441/100968
dc.description.abstract	A fluidized granular gas in presence of a gravitational field is considered. It is enclosed in a box with a movable piston on the top. Molecular dynamics simulation results show that, if the box is not too wide, the system reaches a stationary state with gradients only in the direction of the field. Here, attention is focussed on the velocity fluctuations of the piston, that are observed to be Gaussian. The relationship between the second moment of this distribution and the granular temperature of the gas just below it is investigated. The ratio between the mean square velocities of the pisto and the gas can be larger or smaller than unity depending on the parameters of the system. A kinetic theory is formulated and its predictions compared with the simulation data.	es
dc.description.sponsorship	Ministerio de Educación y Ciencia (MEC). España FIS2008-01339	es
dc.format	application/pdf	es
dc.format.extent	16 p.	es
dc.language.iso	eng	es
dc.publisher	American Institute of Physics	es
dc.relation.ispartof	10th Granada Lectures on Modeling and Simulation of New Materials (2009), pp. 109-123.
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.subject	Granular gases	es
dc.subject	Fluctuations	es
dc.subject	Non-equilibrium temperature	es
dc.title	Fluctuations of a piston on top of a fluidized granular gas	es
dc.type	info:eu-repo/semantics/conferenceObject	es
dcterms.identifier	https://ror.org/03yxnpp24
dc.type.version	info:eu-repo/semantics/publishedVersion	es
dc.rights.accessRights	info:eu-repo/semantics/openAccess	es
dc.contributor.affiliation	Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear	es
dc.relation.projectID	FIS2008-01339	es
dc.relation.publisherversion	https://doi.org/10.1063/1.3082270	es
dc.identifier.doi	10.1063/1.3082270	es
dc.publication.initialPage	109	es
dc.publication.endPage	123	es
dc.eventtitle	10th Granada Lectures on Modeling and Simulation of New Materials	es
dc.eventinstitution	Granada, (España)	es
dc.contributor.funder	Ministerio de Educación y Ciencia (MEC). España	es

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