Results 1 to 10 of about 18,745,540 (280)

Penalty Virtual Element Method for the 3D Incompressible Flow on Polyhedron Mesh [PDF]

open access: yesEntropy, 2022
In this paper, a penalty virtual element method (VEM) on polyhedral mesh for solving the 3D incompressible flow is proposed and analyzed. The remarkable feature of VEM is that it does not require an explicit computation of the trial and test space ...
Lulu Li, Haiyan Su, Yinnian He
doaj   +2 more sources

SUPG-Stabilized Virtual Element Method for Optimal Control Problem Governed by a Convection Dominated Diffusion Equation [PDF]

open access: yesEntropy, 2021
In this paper, the streamline upwind/Petrov Galerkin (SUPG) stabilized virtual element method (VEM) for optimal control problem governed by a convection dominated diffusion equation is investigated.
Qiming Wang, Zhaojie Zhou
doaj   +2 more sources

An Immersed Virtual Element Method Based on Interface Problems

open access: yesJournal of Harbin University of Science and Technology, 2023
An immersed virtual element method is developed to solve the second-order interface problems in two-dimensional space , which overcomes the problem that the constructed space cannot satisfy both the coordination and jump conditions. The key idea is to
MA Jun chi, SUO Yu yang
doaj   +1 more source

A Simple, Accurate and Semi-Analytical Meshless Method for Solving Laplace and Helmholtz Equations in Complex Two-Dimensional Geometries

open access: yesMathematics, 2022
A localized virtual boundary element–meshless collocation method (LVBE-MCM) is proposed to solve Laplace and Helmholtz equations in complex two-dimensional (2D) geometries.
Xingxing Yue   +3 more
doaj   +1 more source

A priori error analysis of virtual element method for contact problem

open access: yesFixed Point Theory and Algorithms for Sciences and Engineering, 2022
As an extension of the finite element method, the virtual element method (VEM) can handle very general polygonal meshes, making it very suitable for non-matching meshes. In (Wriggers et al. in Comput. Mech.
Fei Wang, B. Daya Reddy
doaj   +1 more source

Virtual element approximations for two species model of the Advection-Diffusion-Reaction in poroelastic media

open access: yesMathematical Modelling and Analysis, 2022
This paper proposes virtual element methods for approximating the mathematical model consisting of coupled poroelastic and Advection-Diffusion-Reaction (ADR) equations.
Nitesh Verma, Sarvesh Kumar
doaj   +1 more source

Adhesive Boundary Element Method Using Virtual Crack Closure Technique

open access: yesFrontiers in Mechanical Engineering, 2021
In this study, a new adhesive contact model is built upon a boundary element method (BEM) model developed by Pohrt and Popov (2015). The strain energy release rate (SERR) on the edge of the bonding interface is evaluated using Virtual Crack Closure ...
Yang Xu, Rongxin Zhou
doaj   +1 more source

The Virtual Element Method for the Dam Foundation With Joint

open access: yesFrontiers in Earth Science, 2022
The contact is a typical non-linear problem that exists in various projects. For traditional three-node triangular mesh and four-node quadrilateral mesh, the accuracy and convergence of the calculation results are affected by the quality of the mesh. The
Yinghao Sun   +7 more
doaj   +1 more source

Study of the enwrapping of the front profiles of the active elements of a three-screw compressor [PDF]

open access: yesMATEC Web of Conferences, 2022
The paper proposes a method for identifying the front profile of a worm-type active element, consisting of a three-screw compressor. The purpose of this identification is to study the frontal enwrapping between the profiles of the driver and the driven ...
Baroiu N.   +4 more
doaj   +1 more source

AN IMPROVED DISTINCT ELEMENT METHOD FOR HIGH PACKING FRACTION STOCHASTIC MEDIA MODELING [PDF]

open access: yesEPJ Web of Conferences, 2021
Due to the generality and flexibility of Monte Carlo method in geometric modeling, Monte Carlo method plays an important role in accurate simulation of random media.
Feng Zhiyuan, An Nan, Wang Kan
doaj   +1 more source

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