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相关论文: Sharp Interface Limit for Compressible Immiscible …

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In this paper, we consider a singular limit problem for a diffuse interface model for two immiscible compressible viscous fluids. Via a relative entropy method, we obtain a convergence result for the low Mach number limit to a corresponding…

偏微分方程分析 · 数学 2024-11-15 Helmut Abels , Yadong Liu , Šárka Nečasová

We show existence and uniqueness of strong solutions to a Navier-Stokes/Cahn-Hilliard type system on a given two-dimensional evolving surface in the case of different densities and a singular (logarithmic) potential. The system describes a…

偏微分方程分析 · 数学 2024-08-15 Helmut Abels , Harald Garcke , Andrea Poiatti

From extensive molecular dynamics simulations on immiscible two-phase flows, we find the relative slipping between the fluids and the solid wall everywhere to follow the generalized Navier boundary condition, in which the amount of slipping…

软凝聚态物质 · 物理学 2009-11-07 Tiezheng Qian , Xiao-Ping Wang , Ping Sheng

The Ising model of statistical physics has served as a keystone example of phase transitions, thermodynamic limits, scaling laws, and many other phenomena and mathematical methods. We introduce and explore an Ising game, a variant of the…

偏微分方程分析 · 数学 2023-01-23 William M Feldman , Inwon C Kim , Aaron Zeff Palmer

This paper is concerned with a diffuse interface model called as Navier-Stokes/Cahn-Hilliard system. This model is usually used to describe the motion of immiscible two-phase flow with diffusion interface. For the periodic boundary value…

偏微分方程分析 · 数学 2021-09-06 Yazhou Chen , Hakho Hong , Xiaoding Shi

We study a quasi-incompressible Navier--Stokes/Cahn--Hilliard coupled system which describes the motion of two macroscopically immiscible incompressible viscous fluids with partial mixing in a small interfacial region and long-range…

偏微分方程分析 · 数学 2025-08-12 Mingwen Fei , Xiang Fei , Daozhi Han , Yadong Liu

We propose a thermodynamically consistent phase-field model for the flow of a mixture of two different viscous incompressible fluids of equal density in a bounded domain. We prove the well-posedness of local-in-time strong solutions by…

偏微分方程分析 · 数学 2025-11-18 Helmut Abels , Alice Marveggio , Andrea Poiatti

Pure advection of a conservative scalar is relevant to several applications including two-phase flow. Successful numerical schemes must capture the sharp interface between the phases while maintaining a smooth (wrinkle-free) interfacial…

流体动力学 · 物理学 2018-11-27 Yashar Mehmani

The majority of available numerical algorithms for interfacial two-phase flows either treat both fluid phases as incompressible (constant density) or treat both phases as compressible (variable density). This presents a limitation for the…

计算物理 · 物理学 2022-01-20 Fabian Denner , Berend van Wachem

We are concerned with the global existence of finite-energy entropy solutions of the one-dimensional compressible Euler equations with (possibly) damping, alignment forces, and nonlocal interactions: Newtonian repulsion and quadratic…

偏微分方程分析 · 数学 2024-03-14 Jose A. Carrillo , Gui-Qiang G. Chen , Difan Yuan , Ewelina Zatorska

Topology changes in multi-phase fluid flows are difficult to model within a traditional sharp interface theory. Diffuse interface models turn out to be an attractive alternative to model two-phase flows. Based on a…

流体动力学 · 物理学 2017-08-02 Luca Dedè , Harald Garcke , Kei Fong Lam

Stabilised mixed velocity-pressure formulations are one of the widely-used finite element schemes for computing the numerical solutions of laminar incompressible Navier-Stokes. In these formulations, the Newton-Raphson scheme is employed to…

计算工程、金融与科学 · 计算机科学 2020-07-15 Chennakesava Kadapa , Wulf G Dettmer , Djordje Peric

We investigate the large-friction and incompressible limits for a two-phase flow (Euler-NS) system which couples the pressureless Euler equations and the isentropic compressible Navier-Stokes equations through a drag force term with the…

偏微分方程分析 · 数学 2025-08-29 Hai-Liang Li , Ling-Yun Shou , Yue Zhang

This study presents an advanced sharp-interface immersed boundary method (IBM) integrated with the blastFOAM library on the OpenFOAM platform for high-speed compressible flow simulations. The developed solver extends the existing IBM…

经典物理 · 物理学 2026-02-18 Punit Pandey , Ankit Bansal , Krishna Mohan Singh , Yannick Hoarau

We consider the impingement of a droplet onto a wall with high impact speed. To model this process we favour a diffuse-interface concept. Precisely, we suggest a compressible Navier--Stokes--Allen--Cahn model. Basic properties of the model…

流体动力学 · 物理学 2019-09-30 Lukas Ostrowski , Christian Rohde

We consider a diffuse interface model for incompressible isothermal mixtures of two immiscible fluids with matched constant densities. This model consists of the Navier-Stokes system coupled with a convective nonlocal Cahn-Hilliard equation…

偏微分方程分析 · 数学 2014-04-16 Sergio Frigeri , Maurizio Grasselli , Elisabetta Rocca

We consider a coupled system of partial differential equations describing the interactions between a closed free interface and two viscous incompressible fluids. The fluids are assumed to satisfy the incompressible Navier-Stokes equations…

最优化与控制 · 数学 2023-08-01 Sebastien Court

The Ohta-Kawasaki model for diblock-copolymers is well known to the scientific community of diffuse-interface methods. To accurately capture the long-time evolution of the moving interfaces, we present a derivation of the corresponding…

数值分析 · 数学 2024-03-11 Amlan K. Barua , Ray Chew , Shuwang Li , John Lowengrub , Andreas Münch , Barbara Wagner

We are concerned with a model describing the motion of two compressible, immiscible fluids with density-dependent viscosity in the whole $\mathbb R^3$. The phases of the flow may have different pressure and viscosity laws and are separated…

偏微分方程分析 · 数学 2025-10-14 Marcel Zodji

The formal sharp-interface asymptotics in a degenerate Cahn-Hilliard model for viscoelastic phase separation with cross-diffusive coupling to a bulk stress variable are shown to lead to non-local lower-order counterparts of the classical…

偏微分方程分析 · 数学 2026-05-22 Katharina Hopf , John King , Andreas Münch , Barbara Wagner