Results 81 to 90 of about 121,260 (302)

A Stable Hybridized Discontinuous Galerkin Method for Solving Some Nonlinear m‐Component Reaction–Diffusion Systems

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 12, Page 12405-12420, August 2025.
ABSTRACT In this paper, we present a stable numerical scheme for solving two‐dimensional m$$ m $$‐component reaction–diffusion systems. The proposed approach utilizes the backward Euler method for temporal discretization and the hybridized discontinuous Galerkin (HDG) method for spatial discretization.
Shima Baharlouei   +2 more
wiley   +1 more source

Space-time discontinuous Galerkin method for the compressible Navier-Stokes equations on deforming meshes [PDF]

open access: yes, 2006
An overview is given of a space-time discontinuous Galerkin finite element method for the compressible Navier-Stokes equations. This method is well suited for problems with moving (free) boundaries which require the use of deforming elements. In addition,
Bos, F. van der   +3 more
core   +1 more source

Onshore Entrapment of Seawater in Coastal Aquifers by Rapid Coastline Progradation

open access: yesWater Resources Research, Volume 61, Issue 8, August 2025.
Abstract We hypothesize that brackish groundwater within unconfined aquifers located in active river deltas may have resulted from rapid shoreline progradation during the Holocene. To explore this hypothesis, we develop a coupled model of variable‐density groundwater flow and solute transport within a prograding sedimentary delta.
Vaughan R. Voller   +6 more
wiley   +1 more source

A Mixed Discontinuous Galerkin Approximation of Time Dependent Convection Diffusion Optimal Control Problem

open access: yesJournal of Mathematics, 2017
In this paper, we investigate a mixed discontinuous Galerkin approximation of time dependent convection diffusion optimal control problem with control constraints based on the combination of a mixed finite element method for the elliptic part and a ...
Qingjin Xu, Zhaojie Zhou
doaj   +1 more source

Membrane finite element method for simulating fluid flow in porous medium

open access: yesWater Science and Engineering, 2009
A new membrane finite element method for modeling fluid flow in a porous medium is presented in order to quickly and accurately simulate the geo-membrane fabric used in civil engineering.
Mei-li Zhan   +4 more
doaj   +1 more source

A High-Order Discontinuous Galerkin Method for Solving Preconditioned Euler Equations

open access: yesApplied Sciences, 2022
A high-order discontinuous Galerkin (DG) method is presented for solving the preconditioned Euler equations with an explicit or implicit time marching scheme.
Huanqin Gao   +4 more
doaj   +1 more source

On the Solution of Boundary Value Problems Set in Domains With Moving Boundaries

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 10, Page 10427-10441, 15 July 2025.
ABSTRACT We construct solutions for time‐dependent boundary value problems set in moving domains with Dirichlet, Neumann, and mixed boundary conditions. When the boundaries are time deformations of an initial boundary along a vector field, we can refer the boundary problem to a fixed domain at the cost of increasing the complexity of the coefficients ...
Ana Carpio, Gema Duro
wiley   +1 more source

TVB Runge-Kutta local projection discontinuous galerkin finite element method for conservation laws. II: General framework

open access: yes, 1989
Construction et analyse d'une classe de methodes a elements finis de Galerkin discontinues a variation totale bornee pour la resolution des lois de conservation. Etude de la convergence.
Bernardo Cockburn, Chi-Wang Shu
semanticscholar   +1 more source

SDF‐Guided Point Cloud Generation Framework for Mesh‐Free CFD

open access: yesInternational Journal for Numerical Methods in Fluids, Volume 97, Issue 7, Page 1035-1056, July 2025.
This paper presents different methods for generating clouds of points around objects for use with meshless methods in computational fluid dynamics. This image shows the cloud generated around the original ROBIN body. ABSTRACT Meshing is a bottleneck of CFD workflows, especially when complex geometries are considered.
Tao Zhang, George N. Barakos
wiley   +1 more source

On Multiscale Methods in Petrov-Galerkin formulation [PDF]

open access: yes, 2014
In this work we investigate the advantages of multiscale methods in Petrov-Galerkin (PG) formulation in a general framework. The framework is based on a localized orthogonal decomposition of a high dimensional solution space into a low dimensional ...
Elfverson, Daniel   +2 more
core  

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