Results 31 to 40 of about 92,614 (167)

A combined method for simulating MHD convection in square cavities through localized heating by method of line and penalty-artificial compressibility

open access: yesJournal of Taibah University for Science, 2021
A new combined technique is developed for studying free convection of magnetohydrodynamic unsteady incompressible flow in a square cavity that partially heated from lower wall and regular cooling from lateral walls.
Mohamed M. Mousa   +2 more
doaj   +1 more source

A Convergence Criterion for a Class of Stationary Inclusions in Hilbert Spaces

open access: yesAxioms
Here, we consider a stationary inclusion in a real Hilbert space X, governed by a set of constraints K, a nonlinear operator A, and an element f∈X. Under appropriate assumptions on the data, the inclusion has a unique solution, denoted by u. We state and
Mircea Sofonea, Domingo A. Tarzia
doaj   +1 more source

A Review of Numerical Techniques for Frictional Contact Analysis

open access: yesLubricants
This review analyzes numerical techniques for frictional contact problems, highlighting their strengths and limitations in addressing inherent nonlinearities and computational demands.
Govind Vashishtha   +4 more
doaj   +1 more source

Two extensions of the Dai-Liao method with sufficient descent property based on a penalization scheme

open access: yesBulletin of Computational Applied Mathematics, 2016
To achieve the good features of the linear conjugate gradient algorithm in a recent extension of the Dai-Liao method, two adaptive choices for parameter of the extended method are proposed based on a penalization approach.
Masoud Fatemi, Saman Babaie-Kafaki
doaj  

Difference interior penalty discontinuous Galerkin method for the 3D elliptic equation

open access: yesResults in Applied Mathematics
This paper presents a difference interior penalty discontinuous Galerkin method for the 3D elliptic boundary-value problem. The main idea of this method is to combine the finite difference discretization in the z-direction with the interior penalty ...
Jian Li, Wei Yuan, Luling Cao
doaj   +1 more source

Penalty‐free discontinuous Galerkin method

open access: yesInternational Journal for Numerical Methods in Engineering
AbstractIn this article, we present a new high‐order discontinuous Galerkin (DG) method, in which neither a penalty parameter nor a stabilization parameter is needed. We refer to this method as penalty‐free DG. In this method, the trial and test functions belong to the broken Sobolev space, in which the functions are in general discontinuous on the ...
Jan Jaśkowiec, N. Sukumar
openaire   +2 more sources

A penalty method for approximations of the stationary power-law Stokes problem

open access: yesElectronic Journal of Differential Equations, 2001
We study approximations of the steady state Stokes problem governed by the power-law model for viscous incompressible non-Newtonian flow using the penalty formulation. We establish convergence and find error estimates.
Lew Lefton, Dongming Wei
doaj  

Existence of solutions for an Oldroyd model of viscoelastic fluids

open access: yesElectronic Journal of Differential Equations, 2009
In this paper we investigate the unilateral problem for an Oldroyd model of a viscoelastic fluid. Using the penalty method, Faedo-Galerkin's approximation, and basic result from the theory of monotone operators, we establish the existence of weak ...
Geraldo M. De Araujo   +2 more
doaj  

An ETD Method for Vulnerable American Options

open access: yesMathematics
This paper introduces the exponential time differencing (ETD) technique as a numerical method to efficiently solve vulnerable American options pricing.
Rafael Company   +2 more
doaj   +1 more source

Penalty Adjustment-Based Sizing Method for Flexible Resources in Isolated Microgrids

open access: yesIEEE Access, 2020
The fixed and subjective setting of the penalty coefficient is a significant drawback of existing penalty-based programming models used to determine the size of flexible resources (FRs), such as microturbines and battery energy storage systems, for ...
Bowei Cen   +3 more
doaj   +1 more source

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