Fluctuations, correlations, and Casimir-like forces in the homogeneous cooling state of a granular gas
dc.contributor.author | Jiménez Oliva, Jesús David | |
dc.contributor.author | Rodriguez-Lopez, Pablo | |
dc.contributor.author | Khalil, Nagi | |
dc.date.accessioned | 2024-01-23T15:00:06Z | |
dc.date.available | 2024-01-23T15:00:06Z | |
dc.date.issued | 2024-01-22 | |
dc.identifier.citation | Phys. Fluids 36, 013326 (2024); doi: 10.1063/5.0189492 | es |
dc.identifier.issn | 1089-7666 | |
dc.identifier.uri | https://hdl.handle.net/10115/28739 | |
dc.description.abstract | The fluctuating hydrodynamics by Brey et. al. is analytically solved to get the long-time limit of the fluctuations of the number density, velocity field, and energy density around the homogeneous cooling state of a granular gas, under physical conditions where it keeps stable. Explicit expressions are given for the non-white contributions in the elastic limit. For small dissipation, the latter is shown to be much smaller than the inelastic contributions, in general. The fluctuation-induced Casimir-like forces on the walls of the system are calculated assuming a fluctuating pressure tensor resulting from perturbing its Navier-Stokes expression. This way, the Casimir-like forces emerges as the correlation between the longitudinal velocity and the energy density. Interestingly, the fluctuation-induced forces push/pull the system towards the square or rectangular geometry when they vanish, in good agreement with the event-driven numerical simulations. | es |
dc.publisher | AIP | es |
dc.rights | Atribución-NoComercial-CompartirIgual 4.0 Internacional | * |
dc.subject | Statistical Mechanics | es |
dc.title | Fluctuations, correlations, and Casimir-like forces in the homogeneous cooling state of a granular gas | es |
dc.type | info:eu-repo/semantics/article | es |
dc.identifier.doi | 10.1063/5.0189492 | es |
dc.rights.accessRights | info:eu-repo/semantics/embargoedAccess | es |
Files in this item
This item appears in the following Collection(s)
-
Artículos de Revista [4166]
Los ítems de digital-BURJC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario