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Mostrando ítems 1-10 de 49
Incorporating variable viscosity in vorticity-based formulations for Brinkman equations
(2019-06)
In this brief note, we introduce a non-symmetric mixed finite element formulation for Brinkman equations written in terms of velocity, vorticity, and pressure with non-constant viscosity. The analysis is performed by the ...
First-order system least-squares finite element method for singularly perturbed Darcy equations
(2023)
We define and analyse a least-squares finite element method for a first-order reformulation of a scaled Brinkman model of fluid flow through porous media. We introduce a pseudostress variable that allows to eliminate the ...
Multiscale hybrid-mixed method for the stokes and brinkman equations-the method
(2017)
The multiscale hybrid-mixed (MHM) method is extended to the Stokes and Brinkman equations with highly heterogeneous coefficients. The approach is constructive. We first propose an equivalent dual-hybrid formulation of the ...
Implementação de simulador bifásico baseado na equação de Brinkman para reservatórios carstificadosImplementation of a two-phase simulator based on the Brinkman equation for karstified reservoirs
(Universidade Federal do Espírito SantoBrasilNúcleo Interdisciplinar de Dinâmica dos FluidosUFES, 2019)
Relative motion of fluid spheres with a porous core.
(2011-10-13)
Relative motion of fluid spheres with a porous core has been considered. The flows in free fluid regions are governed by the Navier-Stokes equations whereas the flow in the porous region is governed by the Brinkman model. ...
Plane viscous flows in a porous medium.
(2011-10-13)
The methods employed by Martin [1971] and Chandna et al. [1982] to steady plane flows have
been applied to the plane viscous flows in a porous medium using the Darcy - Brinkman -
Lapwood equation. Various flows and ...
Analysis of a vorticity–based fully–mixed formulation for 3D Brinkman–Darcy problem.
(2016)
We propose and analyze a fully-mixed finite element method to numerically approximate the flow patterns of a viscous fluid within a highly permeable medium (an array of low concentration fixed particles), described by ...
A posteriori error analysis of a fully-mixed formulation for the Brinkman–Darcy problem
(2017-09-05)
We develop the a posteriori error analysis for a mixed finite element method
applied to the coupling of Brinkman and Darcy equations in 3D, modelling the interaction of viscous and non-viscous flow effects across a given ...