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相关论文: A symmetrizable extension of polyconvex thermoelas…

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For the system of polyconvex adiabatic thermoelasticity, we define a notion of dissipative measure-valued solution, which can be considered as the limit of a viscosity approximation. We embed the system into a symmetrizable hyperbolic one…

偏微分方程分析 · 数学 2018-08-28 Cleopatra Christoforou , Myrto Galanopoulou , Athanasios E. Tzavaras

We extend the relative entropy identity to the class of hyperbolic-parabolic systems whose hyperbolic part is symmetrizable. The resulting identity, in the general theory, is useful to provide stability of viscous solutions and yields a…

偏微分方程分析 · 数学 2018-01-17 Cleopatra Christoforou , Athanasios Tzavaras

This article studies the equations of adiabatic thermoelasticity endowed with an internal energy satisfying an appropriate quasiconvexity assumption which is associated to the symmetrisability condition for the system. A G{\aa}rding-type…

偏微分方程分析 · 数学 2021-10-01 Myrto Galanopoulou , Konstantinos Koumatos , Andreas Vikelis

We propose a variational scheme for the construction of isentropic processes of the equations of adiabatic thermoelasticity with polyconvex internal energy. The scheme hinges on the embedding of the equations of adiabatic polyconvex…

偏微分方程分析 · 数学 2020-03-31 Cleopatra Christoforou , Myrto Galanopoulou , Athanasios E. Tzavaras

In this work, we introduce a notion of dissipative weak solution for a system describing the evolution of a heat-conducting incompressible non-Newtonian fluid. This concept of solution is based on the balance of entropy instead of the…

偏微分方程分析 · 数学 2022-06-13 Pablo Alexei Gazca-Orozco , Victoria Patel

General hyperbolic systems of balance laws with inhomogeneity in space and time in all constitutive functions are studied in the context of relative entropy. A framework is developed in this setting that contributes to a measure-valued weak…

偏微分方程分析 · 数学 2022-06-02 Cleopatra Christoforou

We consider the coupled motion of a free rigid body immersed in an inviscid compressible isentropic fluid. By means of a vanishing viscosity limit, we obtain the local-in-time existence of a dissipative measure-valued solution to the model.…

偏微分方程分析 · 数学 2026-03-04 Qianfeng Li , Emil Wiedemann

In this paper, we study the thermo-elastodynamics of nonlinearly viscous solids in the Kelvin-Voigt rheology where both the elastic and the viscous stress tensors comply with the frame-indifference principle. The system features a force…

偏微分方程分析 · 数学 2024-09-04 S. Almi , R. Badal , M. Friedrich , S. Schwarzacher

Here we study a nonlinear thermoelasticity hyperbolic-parabolic system describing the balance of momentum and internal energy of a heat-conducting elastic body, preserving the positivity of temperature. So far, no global existence results…

偏微分方程分析 · 数学 2023-12-20 Tomasz Cieślak , Boris Muha , Srđan Trifunović

We consider a thermodynamically consistent model for thermoviscoplasticity. For the related PDE system, coupling the heat equation for the absolute temperature, the momentum balance with viscosity and inertia for the displacement variable,…

偏微分方程分析 · 数学 2018-03-20 Riccarda Rossi

We consider a quasistatic nonlinear model in thermoviscoelasticity at a finite-strain setting in the Kelvin-Voigt rheology where both the elastic and viscous stress tensors comply with the principle of frame indifference under rotations.…

偏微分方程分析 · 数学 2023-01-25 Rufat Badal , Manuel Friedrich , Martin Kružík

We introduce the notion of relative entropy for the weak solutions of the compressible Navier-Stokes system. We show that any finite energy weak solution satisfies a relative entropy inequality for any pair of sufficiently smooth test…

偏微分方程分析 · 数学 2015-06-03 Eduard Feireisl , Bum Ja Jin , Antonin Novotny

We study a one-dimensional nonlinear hyperbolic-parabolic initial boundary value problem occurring in the theory of thermoelasticity. We prove existence and uniqueness of the local-in-time strong solution. Also, some global-in-time weak…

偏微分方程分析 · 数学 2020-05-29 Tomasz Cieslak , Marija Galić , Boris Muha

In this article, we study a thermodynamically consistent thermo-visco-elastic model describing the balance of internal energy in a heat-conducting inelastic body. In the considered problem, the temperature dependence appears in both the…

偏微分方程分析 · 数学 2025-11-13 Tomasz Cieślak , Sebastian Owczarek , Karolina Wielgos

Our paper deals with three-dimensional nonsteady Navier-Stokes equations for non-Newtonian compressible fluids. It contains a~derivation of the relative energy inequality for the weak solutions to these equations. We show that the standard…

偏微分方程分析 · 数学 2022-10-25 Richard Andrášik , Václav Mácha , Rostislav Vodák

A weak-strong uniqueness result is proved for measure-valued solutions to the system of conservation laws arising in elastodynamics. The main novelty brought forward by the present work is that the underlying stored-energy function of the…

偏微分方程分析 · 数学 2020-07-17 Konstantinos Koumatos , Stefano Spirito

We establish convergence in the diffusive limit from entropy weak solutions of the equations of compressible gas dynamics with friction to the porous media equation away from vacuum. The result is based on a Lyapunov type of functional…

偏微分方程分析 · 数学 2021-03-22 Corrado Lattanzio , Athanasios E. Tzavaras

This paper investigates the zero relaxation limit for general linear hyperbolic relaxation systems and establishes the asymptotic convergence of slow variables under the unimprovable weakest stability condition, akin to the Lax equivalence…

偏微分方程分析 · 数学 2023-11-20 Zeyu Jin , Ruo Li

We prove the existence of large-data global-in-time weak solutions to an evolutionary PDE system describing flows of incompressible \emph{heat-conducting} viscoelastic rate-type fluids with stress-diffusion, subject to a stick-slip boundary…

偏微分方程分析 · 数学 2020-07-14 Miroslav Bulíček , Josef Málek , Vít Průša , Endre Süli

We present a general framework for the approximation of systems of hyperbolic balance laws. The novelty of the analysis lies in the construction of suitable relaxation systems and the derivation of a delicate estimate on the relative…

偏微分方程分析 · 数学 2014-08-06 Alexey Miroshnikov , Konstantina Trivisa
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