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The purpose of this paper is to deal with the issue of well-posedness for a class of non-Newtonian fluid dynamics equations. These sets of equations are commonly used to describe various complex models that appear in nature, industry, and…

偏微分方程分析 · 数学 2022-02-09 Bilal Al Taki

A kinetic-fluid model describing the evolutions of disperse two-phase flows is considered. The model consists of the Vlasov-Fokker-Planck equation for the particles (disperse phase) coupled with the compressible Navier-Stokes equations for…

偏微分方程分析 · 数学 2017-04-06 Fucai Li , Yanmin Mu , Dehua Wang

We consider a nonlinear drift-diffusion system for multiple charged species in a porous medium in 2D and 3D with periodic microstructure. The system consists of a transport equation for the concentration of the species and Poisson's…

偏微分方程分析 · 数学 2022-06-16 Apratim Bhattacharya , Markus Gahn , Maria Neuss-Radu

In this paper we are interested with a strongly coupled system of partial differential equations that modelizes free convection in a two-dimensional bounded domain filled with a fluid saturated porous medium. This model is inspired by the…

偏微分方程分析 · 数学 2007-05-23 S. Akesbi , B. Brighi , J. -D. Hoernel

Our goal of this paper is to develop a new upscaling method for multicontinua flow problems in fractured porous media. We consider a system of equations that describes flow phenomena with multiple flow variables defined on both matrix and…

数值分析 · 数学 2018-07-17 Maria Vasilyeva , Eric T. Chung , Siu Wun Cheung , Yating Wang , Georgy Prokopev

The floating structure problem describes the interaction between surface water waves and a floating body, generally a boat or a wave energy converter. As shown by Lannes in [18] the equations for the fluid motion can be reduced to a set of…

偏微分方程分析 · 数学 2019-10-22 Edoardo Bocchi

We consider a system of nonlinear partial differential equations describing the motion of an incompressible chemically reacting generalized Newtonian fluid in three space dimensions. The governing system consists of a steady…

数值分析 · 数学 2017-08-29 Seungchan Ko , Endre Suli

Accurate and efficient numerical simulation of unconventional reservoirs is challenging. Long periods of transient flow and steep potential gradients occur due to the extreme conductivity contrast between matrix and fracture. Detailed…

计算工程、金融与科学 · 计算机科学 2020-10-23 Jiamin Jiang

In this paper, we study the three-dimensional non-isentropic compressible fluid-particle flows. The system involves coupling between the Vlasov-Fokker-Planck equation and the non-isentropic compressible Navier-Stokes equations through…

偏微分方程分析 · 数学 2019-04-18 Yanmin Mu , Dehua Wang

We investigate a system of nonlinear partial differential equations modeling the unsteady flow of a shear-thinning non-Newtonian fluid with a concentration-dependent power-law index. The system consists of the generalized Navier-Stokes…

偏微分方程分析 · 数学 2025-05-09 Kyueon Choi , Kyungkeun Kang , Seungchan Ko

We study a one dimensional model for two-phase flows in heterogeneous media, in which the capillary pressure functions can be discontinuous with respect to space. We first give a model, leading to a system of degenerated non-linear…

偏微分方程分析 · 数学 2009-09-08 Clément Cancès

We are concerned with a semilinear elliptic equation in the half-space, subject to a nonlinear dynamic boundary condition. We establish the global well-posedness of solutions in a new setting for the problem, namely the framework of Morrey…

偏微分方程分析 · 数学 2026-03-12 Lucas C. F. Ferreira , Narayan V. Machaca-León

Exact solutions are derived for the problem of a two-dimensional, infinitely anisotropic, linear-elastic medium containing a periodic lattice of voids. The matrix material possesses either one infinitely soft, or one infinitely hard loading…

材料科学 · 物理学 2008-04-17 Francois Willot , Yves-Patrick Pellegrini , Pedro Ponte Castaneda

This paper is concerned with the numerical solution of compressible fluid flow in a fractured porous medium. The fracture represents a fast pathway (i.e., with high permeability) and is modeled as a hypersurface embedded in the porous…

数值分析 · 数学 2022-02-15 Phuoc-Toan Huynh , Yanzhao Cao , Thi-Thao-Phuong Hoang

Porous membranes are thin solid structures that allow the flow to pass through their tiny openings, called pores. Flow inertia may play a significant role in several filtration flows of natural and engineering interest. Here, we develop a…

流体动力学 · 物理学 2024-04-22 Kevin Wittkowski , Alberto Ponte , Pier Giuseppe Ledda , Giuseppe Antonio Zampogna

Exact solutions for laminar stratified flows of Newtonian/non-Newtonian shear-thinning fluids in horizontal and inclined channels are presented. An iterative algorithm is proposed to compute the laminar solution for the general case of a…

流体动力学 · 物理学 2017-06-20 Davide Picchi , Pietro Poesio , Amos Ullmann , Neima Brauner

We study the Muskat problem describing the spatially periodic motion of two fluids with equal viscosities under the effect of gravity in a vertical unbounded two-dimensional geometry. We first prove that the classical formulation of the…

偏微分方程分析 · 数学 2017-06-29 Anca-Voichita Matioc , Bogdan-Vasile Matioc

When a fluid carrying a passive solute flows quickly through porous media, three key macroscale transport mechanisms occur. These mechanisms are diffusion, advection and dispersion, all of which depend on the microstructure of the porous…

流体动力学 · 物理学 2024-10-16 Lucy C Auton , Mohit P. Dalwadi , Ian M. Griffiths

We consider flow-structure interactions modeled by a modified wave equation coupled at an interface with equations of nonlinear elasticity. Both subsonic and supersonic flow velocities are treated with Neumann type flow conditions, and a…

偏微分方程分析 · 数学 2013-11-08 Igor Chueshov , Irena Lasiecka , Justin T. Webster

In this paper, we present a monolithic multigrid method for the efficient solution of flow problems in fractured porous media. Specifically, we consider a mixed-dimensional model which couples Darcy flow in the porous matrix with…

数值分析 · 数学 2018-11-08 Andrés Arrarás , Francisco J. Gaspar , Laura Portero , Carmen Rodrigo