中文
相关论文

相关论文: Global existence of weak solutions and weak-strong…

200 篇论文

Maxwell-Stefan systems describing the dynamics of the molar concentrations of a gas mixture with an arbitrary number of components are analyzed in a bounded domain under isobaric, isothermal conditions. The systems consist of mass balance…

偏微分方程分析 · 数学 2012-11-13 Ansgar Jüngel , Ines Viktoria Stelzer

A Maxwell-Stefan system for fluid mixtures with driving forces depending on Cahn-Hilliard-type chemical potentials is analyzed. The corresponding parabolic cross-diffusion equations contain fourth-order derivatives and are considered in a…

偏微分方程分析 · 数学 2022-05-16 Xiaokai Huo , Ansgar Jüngel , Athanasios E. Tzavaras

The weak-strong uniqueness for Maxwell--Stefan systems and some generalized systems is proved. The corresponding parabolic cross-diffusion equations are considered in a bounded domain with no-flux boundary conditions. The key points of the…

偏微分方程分析 · 数学 2021-10-12 Xiaokai Huo , Ansgar Jüngel , Athanasios E. Tzavaras

The incompressible Navier-Stokes equations coupled to the Maxwell-Stefan relations for the molar fluxes are analyzed in bounded domains with no-flux boundary conditions. The system models the dynamics of a multicomponent gaseous mixture…

偏微分方程分析 · 数学 2013-10-15 Xiuqing Chen , Ansgar Jüngel

The global-in-time existence of bounded weak solutions to the Maxwell-Stefan-Fourier equations in Fick-Onsager form is proved. The model consists of the mass balance equations for the partial mass densities and and the energy balance…

偏微分方程分析 · 数学 2020-11-02 Christoph Helmer , Ansgar Jüngel

The uniqueness of bounded weak solutions to strongly coupled parabolic equations in a bounded domain with no-flux boundary conditions is shown. The equations include cross-diffusion and drift terms and are coupled selfconsistently to the…

偏微分方程分析 · 数学 2017-06-28 Xiuqing Chen , Ansgar Jüngel

After the pioneering work by Giovangigli on mathematics of multicomponent flows, several attempts were made to introduce global weak solutions for the PDEs describing the dynamics of fluid mixtures. While the incompressible case with…

偏微分方程分析 · 数学 2020-04-22 Pierre-Etienne Druet

We consider a real two-fluid system of compressible viscous fluids with a common velocity field and algebraic closure for the pressure law. The constitutive relation involves densities of both fluids through an implicit function. The…

偏微分方程分析 · 数学 2026-02-24 Yang Li , Mária Lukáčová-Medvid'ová , Milan Pokorný , Ewelina Zatorska

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

Volume-filling cross-diffusion equations for the components of a tissue structure are formally derived from mass conservation laws and force balances for the interphase pressures and viscous drag forces in a multiphase approach. The…

偏微分方程分析 · 数学 2026-04-03 Ansgar Jüngel , Cordula Reisch , Sara Xhahysa

Entropy weak solutions with bounded periodic initial data are considered for the system of weakly nonlinear gas dynamics. Through a modified Glimm scheme, an approximate solution sequence is constructed, and then a priori estimates are…

偏微分方程分析 · 数学 2016-06-03 Peng Qu , Zhouping Xin

The weak-strong uniqueness of solutions to a broad class of cross-diffusion systems with volume filling is established. In general, the diffusion matrices are neither symmetric nor positive definite. This issue is overcome by supposing that…

偏微分方程分析 · 数学 2025-10-01 Maria Heitzinger , Ansgar Jüngel

We give conditions that guarantee uniqueness of renormalized solutions for the Maxwell-Stefan system. The proof is based on an identity for the evolution of the symmetrized relative entropy. Using the method of doubling the variables we…

偏微分方程分析 · 数学 2024-07-10 Stefanos Georgiadis , Hoyoun Kim , Athanasios E. Tzavaras

The large-time asymptotics of weak solutions to Maxwell--Stefan diffusion systems for chemically reacting fluids with different molar masses and reversible reactions are investigated. The diffusion matrix of the system is generally neither…

偏微分方程分析 · 数学 2019-07-29 Esther S. Daus , Ansgar Jüngel , Bao Quoc Tang

We investigate a coupling between the compressible Navier-Stokes-Fourier system and the full Maxwell-Stefan equations. This model describes the motion of chemically reacting heat-conducting gaseous mixture. The viscosity coefficients are…

偏微分方程分析 · 数学 2014-05-06 Piotr Bogsław Mucha , Milan Pokorný , Ewelina Zatorska

A type-I model of non-isothermal multicomponent systems of gases describing mass diffusive and heat conductive phenomena is presented. The derivation of the model and a convergence result among thermomechanical theories in the smooth regime…

偏微分方程分析 · 数学 2023-01-24 Stefanos Georgiadis , Ansgar Jüngel , Athanasios Tzavaras

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

The existence of global weak solutions to a parabolic energy-transport system in a bounded domain with no-flux boundary conditions is proved. The model can be derived in the diffusion limit from a kinetic equation with a linear collision…

偏微分方程分析 · 数学 2023-07-18 Gianluca Favre , Ansgar Jüngel , Christian Schmeiser , Nicola Zamponi

In this paper, we investigate a model describing induction hardening of steel. The related system consists of an energy balance, an ODE for the different phases of steel, and Maxwell's equations in a potential formulation. The existence of…

偏微分方程分析 · 数学 2023-12-22 Dietmar Hömberg , Robert Lasarzik

Despite the fact that the theory of mixtures has been part of non-equilibrium thermodynamics and engineering for a long time, it is far from complete. While it is well formulated and tested in the case of mechanical equilibrium (where only…

统计力学 · 物理学 2022-07-01 Petr Vágner , Michal Pavelka , Jürgen Fuhrmann , Václav Klika
‹ 上一页 1 2 3 10 下一页 ›