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In this paper, we present a new model for heat transfer in compressible fluid flows. The model is derived from Hamilton's principle of stationary action in Eulerian coordinates, in a setting where the entropy conservation is recovered as an…

偏微分方程分析 · 数学 2024-08-13 Firas Dhaouadi , Sergey Gavrilyuk

In this paper, we present a model based on a local thermodynamic equilibrium, weakly ionized plasma-mixture model used for medical and technical applications in etching processes. We consider a simplified model based on the Maxwell-Stefan…

数值分析 · 数学 2015-01-26 Juergen Geiser

Using effective field theory methods, we calculate the low-temperature phonon thermal partition function for a generic superfluid, thus providing the leading thermal corrections to a superfluid's equation of state, thermodynamic quantities,…

高能物理 - 理论 · 物理学 2023-08-21 Ioanna Kourkoulou , Alberto Nicolis , Klaas Parmentier

The full compressible Navier-Stokes system describing the motion of a viscous, compressible, heat-conductive, and Newtonian polytropic fluid is studied in a three-dimensional simply connected bounded domain with smooth boundary having a…

偏微分方程分析 · 数学 2022-07-04 Jing Li , Boqiang Lü , Xue Wang

This paper is concerned with the two-dimensional chemotaxis-fluid model \begin{equation*} \begin{cases} n_t+u\cdot\nabla n=\Delta (n\phi(v))+\mu n(1-n),\\ v_t+u\cdot\nabla v=\Delta v-nv,\\ u_t+ \kappa (u\cdot\nabla) u=\Delta…

偏微分方程分析 · 数学 2025-09-23 Yansheng Ma , Peter Y. H. Pang , Yifu Wang

We derive two different generalized heat-transport equations: The most general one, of the first order in time and second order in space, encompasses some well known heat equations and describes the hyperbolic regime in the absence of…

统计力学 · 物理学 2019-06-11 Patrizia Rogolino , Róbert Kovács , Péter Ván , Vito Antonio Cimmelli

A quantum thermodynamic system can conserve non-commuting observables, but the consequences of this phenomenon on relaxation are still not fully understood. We investigate this problem by leveraging an observable-dependent approach to…

In this paper, we study the Cauchy problem for a nonlinear wave equation with frictional and viscoelastic damping terms. As is pointed out by [8], in this combination, the frictional damping term is dominant for the viscoelastic one for the…

偏微分方程分析 · 数学 2016-05-25 Ryo Ikehata , Hiroshi Takeda

The full compressible magnetohydrodynamic system in three-dimensional exterior domains is investigated. For the initial-boundary-value problem of this system with slip boundary condition for the velocity, adiabatic one for the temperature,…

偏微分方程分析 · 数学 2022-11-02 Yunkun Chen , Yi Peng , Xue Wang

We prove approach to thermal equilibrium for the fully Hamiltonian dynamics of a dynamical Lorentz gas, by which we mean an ensemble of particles moving through a $d$-dimensional array of fixed soft scatterers that each possess an internal…

统计力学 · 物理学 2015-05-20 S. De Bievre , P. E. Parris

The second law of thermodynamics is a useful and universal tool to derive the generalizations of the Fourier's law. In many cases, only linear relations are considered between the thermodynamic fluxes and forces, i.e., the conduction…

统计力学 · 物理学 2019-12-25 Róbert Kovács , Patrizia Rogolino

In the present paper we consider a porous thermoelastic system with only one dissipative mechanism generated by the heat conductivity modelled by the Gurtin-Pipkin thermal law. By the use of a semigroup approach and the Lumer-Phillips…

偏微分方程分析 · 数学 2023-07-11 Afaf Ahmima , Abdelfeteh Fareh

In this paper we address the temperature patch problem of the 2D viscous Boussinesq system without heat diffusion term. The temperature satisfies the transport equation and the initial data of temperature is given in the form of…

偏微分方程分析 · 数学 2021-10-29 Dongho Chae , Qianyun Miao , Liutang Xue

This study presents a new turbulence model for isothermal compressible flows. The model is derived by combining the Favre averaging and the Conservation-dissipation formalism -- a newly developed thermodynamics theory. The latter provides a…

偏微分方程分析 · 数学 2025-04-29 Zhiting Ma , Wen-An Yong , Yi Zhu

We consider a class of $L^1$ critical nonlocal aggregation equations with linear or nonlinear porous media-type diffusion which are characterized by a long-range interaction potential that decays faster than the Newtonian potential at…

偏微分方程分析 · 数学 2014-03-18 Jacob Bedrossian

In this paper, we study a hyperbolic-parabolic coupled system arising in nonlinear three-dimensional thermoelasticity. We establish the global well-posedness and asymptotic behavior of solutions. Our main result shows that, a thermoelastic…

偏微分方程分析 · 数学 2026-03-11 Chuang Ma , Bin Guo

A Fokker-Planck type equation for interacting particles with exclusion principle is analysed. The nonlinear drift gives rise to mathematical difficulties in controlling moments of the distribution function. Assuming enough initial moments…

偏微分方程分析 · 数学 2008-01-21 José A. Carrillo , Philippe Laurençot , Jesús Rosado

The quantum dynamics away from equilibrium is of fundamental interest for interacting many-body systems. In this letter, we study tilted many-body systems using the effective Hamiltonian derived from the microscopic description. We first…

量子气体 · 物理学 2020-07-29 Pengfei Zhang

We generalize thermal WIMP (Weakly Interacting Massive Particle) freeze-out within Tsallis nonextensive statistics. Using Curado-Tsallis $q$-distributions $f_q(E;\mu,T)$ we compute $q$-deformed number and energy densities, pressure, entropy…

高能物理 - 唯象学 · 物理学 2026-02-06 Matias P. Gonzalez , Roberto A. Lineros

The system of compressible adiabatic flow through porous media is considered in $\mathbb{R}^{3}$ in the present paper. The global existence and uniqueness of classical solutions are obtained when the initial data is near its equilibrium. We…

偏微分方程分析 · 数学 2012-11-08 Guochun Wu Zhong Tan , Jun Huang
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