Results 41 to 50 of about 15,098,358 (286)

Mixed and Stabilized Finite Element Methods for the Obstacle Problem [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2017
We discretize the Lagrange multiplier formulation of the obstacle problem by mixed and stabilized finite element methods. A priori and a posteriori error estimates are derived and numerically verified.
Stenberg, Rolf   +3 more
openaire   +5 more sources

An energy preserving mixed finite element for Maxwell"s equations with nonlinear conductivity

open access: yes四川大学学报. 自然科学版, 2022
An energy-preserving mixed finite element is constructed to solve the Maxwell"s equations with nonlinear conductivity. This finite element is obtained by discretizing the first order formulation of the Maxwell"s equations in space based on the finite ...
LIU Sha-Sha, WU Yong-Ke
doaj  

Nonlinear simulation of arch dam cracking with mixed finite element method

open access: yesWater Science and Engineering, 2008
This paper proposes a new, simple and efficient method for nonlinear simulation of arch dam cracking from the construction period to the operation period, which takes into account the arch dam construction process and temperature loads.
Ren Hao   +3 more
doaj   +1 more source

Mixed finite element-finite volume methods

open access: yesBulletin of the Belgian Mathematical Society - Simon Stevin, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zine Dine, Khadija   +2 more
openaire   +3 more sources

Finite element method using vector finite elements applied to eddy current problems [PDF]

open access: yes, 2011
Vector fields found in electromagnetics are fundamentally different to vector fields found in other research areas such as structural mechanics. Electromagnetic vector fields possess different physical behaviour patterns and different properties in ...
Adams, Leila
core   +1 more source

Stabilized finite element method for the stationary mixed Stokes–Darcy problem

open access: yesAdvances in Difference Equations, 2018
This paper considers numerical methods for solving the viscous incompressible steady-state Stokes–Darcy problem that can be implemented by the use of existing surface water and groundwater codes.
Jiaping Yu   +3 more
doaj   +1 more source

Convergence analysis of two-grid methods for second order hyperbolic equation

open access: yesJournal of Inequalities and Applications, 2021
In this paper, a second-order hyperbolic equation is solved by a two-grid algorithm combined with the expanded mixed finite element method. The error estimate of the expanded mixed finite element method with discrete-time scheme is demonstrated. Moreover,
Keyan Wang, Qisheng Wang
doaj   +1 more source

Convergence and optimality of adaptive mixed finite element methods [PDF]

open access: yesMathematics of Computation, 2009
The convergence and optimality of adaptive mixed finite element methods for the Poisson equation are established in this paper. The main difficulty for mixed finite element methods is the lack of minimization principle and thus the failure of orthogonality.
Long Chen 0002   +2 more
openaire   +3 more sources

Mixed Generalized Multiscale Finite Element Methods and Applications [PDF]

open access: yesMultiscale Modeling & Simulation, 2015
In this paper, we present a mixed generalized multiscale finite element method (GMsFEM) for solving flow in heterogeneous media. Our approach constructs multiscale basis functions following a GMsFEM framework and couples these basis functions using a mixed finite element method, which allows us to obtain a mass conservative velocity field. To construct
Eric T. Chung 0001   +2 more
openaire   +5 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

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