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相关论文: On a Cahn-Hilliard system with source term and the…

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We consider a class of six-order Cahn-Hilliard equations with logarithmic type potential. This system is closely connected with some important phase-field models relevant in different applications, for instance, the functionalized…

偏微分方程分析 · 数学 2023-07-28 Giulio Schimperna , Hao Wu

We deal with a system of two coupled differential equations, describing the evolution of a first order phase transition. In particular, we have two non-linear parabolic equations: the first one is deduced from a balance law for entropy and…

偏微分方程分析 · 数学 2011-07-19 Manuela Girotti

How to develop efficient numerical schemes while preserving the energy stability at the discrete level is a challenging issue for the three component Cahn-Hilliard phase-field model. In this paper, we develop first and second order temporal…

数值分析 · 数学 2017-02-01 Xiaofeng Yang , Jia Zhao , Qi Wang , Jie Shen

We prove global existence of a solution to an initial and boundary value problem for a highly nonlinear PDE system. The problem arises from a thermomechanical dissipative model describing hydrogen storage by use of metal hydrides. In order…

偏微分方程分析 · 数学 2015-05-18 Elisabetta Chiodaroli

We investigate the quantum thermal transistor effect in nonequilibrium three-level systems by applying the polaron transformed Redfield equation combined with full counting statistics. The steady state heat currents are obtained via this…

量子物理 · 物理学 2020-08-26 Chen Wang , Dazhi Xu

In this paper we consider the Cahn-Hilliard equation endowed with Wentzell boundary condition which is a model of phase separation in a binary mixture contained in a bounded domain with permeable wall. Under the assumption that the…

偏微分方程分析 · 数学 2008-04-14 Hao Wu

We derive the global model of thermal quasi-geostrophy on the sphere via asymptotic expansion of the thermal rotating shallow water equations. The model does not rely on the asymptotic expansion of the Coriolis force and extends the…

数值分析 · 数学 2025-09-01 Michael Roop , Sagy Ephrati

In this paper, we develop a Hamiltonian variational formulation for the nonequilibrium thermodynamics of simple adiabatically closed systems that is an extension of Hamilton's phase space principle in mechanics. We introduce the…

数学物理 · 物理学 2022-04-05 Hiroaki Yoshimura , François Gay-Balmaz

We study the phase diagram of the ionic Hubbard model (IHM) at half-filling using dynamical mean field theory (DMFT), with two impurity solvers, namely, iterated perturbation theory (IPT) and continuous time quantum Monte Carlo (CTQMC). The…

强关联电子 · 物理学 2015-09-10 Soumen Bag , Arti Garg , H. R. Krishnamurthy

The paper investigates an inverse problem of recovering the internal source from external temperature measurements in photo-thermal effect. The photo-thermal effect actually involves two physical processes: electromagnetic scattering and…

偏微分方程分析 · 数学 2024-09-16 Li-Ping Deng , Hongyu Liu , Zhi-Qiang Miao , Guang-Hui Zheng

The nonlocal Cahn-Hilliard equation provides a natural extension of the classical model for phase separation by incorporating long-range interactions through a singular convolution kernel. While this formulation admits a rich existence and…

In this work, we present a variational and quantitative phase-field model for non-isothermal sintering processes. The model is derived via an extended non-diagonal phase-field model. The model evolution equations have naturally…

材料科学 · 物理学 2023-08-10 Timileyin David Oyedeji , Yangyiwei Yang , Herbert Egger , Bai-Xiang Xu

This paper is concerned with a thermomechanical model describing phase separation phenomena in terms of the entropy balance and equilibrium equations for the microforces. The related system is highly nonlinear and admits singular potentials…

偏微分方程分析 · 数学 2019-01-30 Pierluigi Colli , Shunsuke Kurima

For the non-conservative Caldirola-Kanai system, describing a quantum damped harmonic oscillator, a couple of constant-of-motion operators generating the Heisenberg-Weyl algebra can be found. The inclusion of the standard time evolution…

数学物理 · 物理学 2015-06-11 J. Guerrero , F. F. López-Ruiz , V. Aldaya , F. Cossío

The anisotropic Cahn-Hilliard equation is often used to model the formation of faceted pyramids on nanoscale crystal surfaces. In comparison to the isotropic Cahn-Hilliard model, the nonlinear terms associated with strong anisotropic…

流体动力学 · 物理学 2025-01-08 Xinyue Liu , Lei Wang , Chenrui Liu

This work presents a conforming finite-element scheme for the non-isothermal Allen-Cahn-Navier-Stokes system, incorporating periodic, closed, and thermal boundary conditions. The system comprises the incompressible Navier-Stokes equations…

数值分析 · 数学 2026-04-24 Aaron Brunk , Dennis Höhn

In this paper, we introduce an interfacial profile-preserving approach for phase field modeling for simulating incompressible two-phase flows. While the advective Cahn-Hilliard equation effectively captures the topological evolution of…

流体动力学 · 物理学 2023-10-03 Haohao Hao , Xiangwei Li , Chenglin Jiang , Huanshu Tan

Comparing with the classical local gradient flow and phase field models, the nonlocal models such as nonlocal Cahn-Hilliard equations equipped with nonlocal diffusion operator can describe more practical phenomena for modeling phase…

偏微分方程分析 · 数学 2019-03-12 Zhengguang liu , Aijie Cheng , Xiaoli Li

Room temperature ionic liquids are attractive to numerous applications and particularly, to renewable energy devices. As solvent free electrolytes, they demonstrate a paramount connection between the material morphology and Coulombic…

化学物理 · 物理学 2016-03-15 Nir Gavish , Arik Yochelis

The constraints on the scaling properties of conserved charge densities in the vicinity of a zero temperature ($T$), second-order quantum phase transition are studied. We introduce a generalized Wilson ratio, characterizing the non-linear…

凝聚态物理 · 物理学 2009-10-22 Subir Sachdev