Vicente Garzó
University of Extremadura
Simple shearPhysicsStatistical physicsWork (thermodynamics)DissipationShear flowHeat fluxShear rateBoltzmann equationDistribution functionMaterials scienceMonte Carlo methodKinetic theory of gasesSteady stateBoltzmann constantMechanicsMomentumDragClassical mechanicsThermodynamicsHard spheres
281Publications
30H-index
3,544Citations
Publications 231
Newest
#1Vicente Garzó (University of Extremadura)H-Index: 30
Comment on the paper J. Solsvik and E. Manger, "Kinetic theory models for granular mixtures with unequal granular temperature: Hydrodynamic velocity," Phys. Fluids \textbf{33}, 043321 (2021).
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#1Satoshi Takada (TUAT: Tokyo University of Agriculture and Technology)H-Index: 9
#2Hisao Hayakawa (Kyoto University)H-Index: 30
Last. Vicente Garzó (University of Extremadura)H-Index: 30
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The rheology of a dilute binary mixture of inertial suspension under simple shear flow is analyzed in the context of the Boltzmann kinetic equation. The effect of the surrounding viscous gas on the solid particles is accounted for by means of a deterministic viscous drag force plus a stochastic Langevin-like term defined in terms of the environmental temperature T_\text{env} Grad's moment method is employed to determine the temperature ratio and the pressure tensor in terms of the coefficient...
The time evolution of a homogeneous bidisperse granular suspension is studied in the context of the Enskog kinetic equation. The influence of the surrounding viscous gas on the solid particles is modeled via a deterministic viscous drag force plus a stochastic Langevin-like term. It is found first that, regardless of the initial conditions, the system reaches (after a transient period lasting a few collisions per particle) a universal unsteady hydrodynamic regime where the distribution function ...
#1Rubén Gómez González (University of Extremadura)H-Index: 3
#2Nagi Khalil (URJC: King Juan Carlos University)H-Index: 10
Last. Vicente Garzó (University of Extremadura)H-Index: 30
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The Mpemba effect occurs when two samples at different initial temperatures evolve in such a way that the temperatures cross each other during the relaxation toward equilibrium. In this paper, we show the emergence of a Mpemba-like effect in a molecular binary mixture in contact with a thermal reservoir (bath). The interaction between the gaseous particles of the mixture and the thermal reservoir is modeled via a viscous drag force plus a stochastic Langevin-like term. The presence of the extern...
1 CitationsSource
The Mpemba effect is a phenomenon in which an initially hotter sample cools sooner. In this paper, we show the emergence of a non-monotonic Mpemba-like effect in a molecular binary mixture immersed in a viscous gas. Namely, a crossover in the temperature evolution when at least one of the samples presents non-monotonic relaxation. The influence of the bath on the dynamics of the particles is modeled via a viscous drag force plus a stochastic Langevin-like term. Each component of the mixture inte...
1 CitationsSource
A linear stability analysis of the hydrodynamic equations of a model for confined quasi-two-dimensional granular gases is carried out. The stability analysis is performed around the homogeneous steady state (HSS) reached eventually by the system after a transient regime. In contrast to previous studies (which considered dilute or quasielastic systems), our analysis is based on the results obtained from the inelastic Enskog kinetic equation, which takes into account the (nonlinear) dependence of ...
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#1Rubén Gómez González (University of Extremadura)H-Index: 3
#2Vicente Garzó (University of Extremadura)H-Index: 30
The Mpemba effect is a phenomenon in which an initially hotter sample cools sooner. In this paper, we show the emergence of a anomalous Mpemba-like effect in a molecular binary mixture immersed in a viscous gas. Namely, a crossover in the temperature evolution when at least one of the samples presents non-monotonic relaxation. The influence of the bath on the dynamics of the particles is modeled via a viscous drag force plus a stochastic Langevin-like term. Each component of the mixture intercha...
#1Ricardo Brito (Complutense University of Madrid)H-Index: 20
#2Rodrigo Soto (University of Chile)H-Index: 20
Last. Vicente Garzó (University of Extremadura)H-Index: 30
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A collisional model of a confined quasi-two-dimensional granular mixture is considered to analyze homogeneous steady states. The model includes an effective mechanism to transfer the kinetic energy injected by vibration in the vertical direction to the horizontal degrees of freedom of grains. The set of Enskog kinetic equations for the velocity distribution functions of each component is derived first to analyze the homogeneous state. As in the one-component case, an exact scaling solution is fo...
5 CitationsSource
#1Vicente GarzóH-Index: 30
#2Ricardo BritoH-Index: 20
Last. Rodrigo SotoH-Index: 20
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#2Nagi KhalilH-Index: 10
Last. Vicente GarzóH-Index: 30
view all 3 authors...
The Mpemba effect occurs when two samples at different initial temperatures evolve in such a way that the temperatures cross each other during the relaxation towards equilibrium. In this paper we show the emergence of a Mpemba-like effect in a molecular binary mixture in contact with a thermal reservoir (bath). The interaction between the gaseous particles of the mixture and the thermal reservoir is modeled via a viscous drag force plus a stochastic Langevin-like term. The presence of the extern...
3 Citations