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We study the modeling of a compressible two-phase flow in a porous medium. The governing free boundary problem is known as the Verigin problem with phase transition. We introduce a novel variational framework to construct weak solutions.…

偏微分方程分析 · 数学 2026-01-29 Anna Kubin , Tim Laux , Alice Marveggio

We consider the compressible Euler system describing the motion of an ideal fluid confined to a straight layer $\Omega_{\delta}=(0,\delta)\times\mathbb{R}^2, \ \ \delta>0$. In the framework of dissipative measure-valued solutions, we show…

偏微分方程分析 · 数学 2020-01-28 Matteo Caggio , Bernard Ducomet , Sarka Necasova , Tong Tang

The low Mach number limit for the compressible viscous diffusion approximation model arising in radiation hydrodynamics is rigorously justified. For the 3-D Cauchy problem, the solutions in an equilibrium diffusion regime are shown to…

偏微分方程分析 · 数学 2025-03-11 Kwang-Il Choe , Dae-Won Choe , Myong Chol Pak

This paper studies the dissipative structure of the system of equations that describes the motion of a compressible, isothermal, viscous-capillar fluid of Korteweg type in one space dimension. It is shown that the system satisfies the…

偏微分方程分析 · 数学 2022-01-06 Ramón G. Plaza , José Manuel Valdovinos

We consider a system describing the motion of an isentropic, inviscid, weakly com-pressible, fast rotating fluid in the whole space R^3 , with initial data belonging to H^s(R^3) , s \textgreater{} 5/2. We prove that the system admits a…

偏微分方程分析 · 数学 2017-08-15 Van-Sang Ngo , Stefano Scrobogna

When a fluid is constrained to a fixed, finite volume, the conditions for liquid-vapor equilibrium are different from the infinite volume or constant pressure cases. There is even a range of densities for which no bubble can form, and the…

化学物理 · 物理学 2023-09-19 Frédéric Caupin

We experimentally investigate the dynamics of capillary-driven flows at the nanoscale, using an original platform that combines nanoscale pores and microfluidic features. Our results show a coherent picture across multiple experiments…

软凝聚态物质 · 物理学 2015-10-05 Olivier Vincent , Alexandre Szenicer , Abraham D. Stroock

We study the finite element formulation of general boundary conditions for incompressible flow problems. Distinguishing between the contributions from the inviscid and viscid parts of the equations, we use Nitsche's method to develop a…

数值分析 · 数学 2023-07-19 Roland Becker , Daniela Capatina , Robert Luce , David Trujillo

We consider the homogenization limit of the compressible barotropic Navier-Stokes equations in a three-dimensional domain perforated by periodically distributed identical particles. We study the regime of particle sizes and distances such…

偏微分方程分析 · 数学 2021-04-29 Richard M. Höfer , Karina Kowalczyk , Sebastian Schwarzacher

Computations of the breakup of a liquid bridge are used to establish the limits of applicability of similarity solutions derived for different breakup regimes. These regimes are based on particular viscous-inertial balances, that is…

流体动力学 · 物理学 2016-05-18 Yuan Li , James E. Sprittles

This work concerns the zero Mach number limit of the compressible primitive equations. The primitive equations with the incompressibility condition are identified as the limiting equations. The convergence with well-prepared initial data…

偏微分方程分析 · 数学 2020-08-26 Xin Liu , Edriss S. Titi

We are concerned with a system of equations in $\mathbb{R}^{d}(d\geq2)$ governing the evolution of isothermal, viscous and compressible fluids of Korteweg type, that can be used as a phase transition model. In the case of zero sound speed…

偏微分方程分析 · 数学 2023-07-14 Zihao Song , Jiang Xu

The initial-boundary value problem for the density-dependent incompressible flow of liquid crystals is studied in a three-dimensional bounded smooth domain. For the initial density away from vacuum, the existence and uniqueness is…

偏微分方程分析 · 数学 2012-02-07 Xiaoli Li , Dehua Wang

This study aims to shed light on hypersonic attachment-line instabilities with large sweep Mach numbers. Highly swept flows over a cold cylinder that give rise to large sweep Mach numbers are studied. High fidelity base flows are obtained…

流体动力学 · 物理学 2021-07-01 Youcheng Xi , Jie Ren , Song Fu

This paper concerns the Cauchy problem of three-dimensional compressible liquid crystal flows with density-dependent viscosity. When the viscosity coefficients $\mu_1(\rho),\mu_2(\rho)$ are power functions of the density with the power…

偏微分方程分析 · 数学 2025-07-08 Jiaxu Li , Yu Mei , Rong Zhang

We study the low Mach number limit of the compressible Navier-Stokes equations on the torus. For large initial data with critical regularity, we prove that solutions to the compressible Navier-Stokes system exist as long as the…

偏微分方程分析 · 数学 2026-03-03 Sai Li

We consider a scaled Navier--Stokes--Fourier system describing the motion of a compressible, heat-conducting, viscous fluid driven by inhomogeneous boundary temperature distribution together with the gravitational force of a massive object…

偏微分方程分析 · 数学 2024-10-02 Francesco Fanelli , Eduard Feireisl

We propose a numerical approach to study the mechanics of a flowing bubble in a constraint micro channel. Using an open source two phase flow solver (Gerris, gfs.sourceforge.net) we compute solutions of the bubble dynamics (i.e. shape and…

流体动力学 · 物理学 2015-07-16 Jose-Maria Fullana , Yue Ling , Stéphane Popinet , Christophe Josserand

We study the characteristics of fluid-fluid displacement in simple mixed-wet porous micromodels numerically using a dynamic pore network model. The porous micromodel consists of distinct water-wet and oil-wet regions, whose fractions are…

软凝聚态物质 · 物理学 2023-08-02 Ashkan Irannezhad , Bauyrzhan K. Primkulov , Ruben Juanes , Benzhong Zhao

We consider the flow of an upper convected Maxwell fluid in the limit of high Weissenberg and Reynolds number. In this limit, the no-slip condition cannot be imposed on the solutions. We derive equations for the resulting boundary layer and…

偏微分方程分析 · 数学 2015-06-04 Michael Renardy , Xiaojun Wang
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