Results 31 to 40 of about 2,087 (169)

Numerical treatment for the solution of singularly perturbed pseudo-parabolic problem on an equidistributed grid

open access: yesNonlinear Engineering, 2020
The initial-boundary value problem for a pseudo-parabolic equation exhibiting initial layer is considered. For solving this problem numerically independence of the perturbation parameter, we propose a difference scheme which consists of the implicit ...
Mohapatra Jugal, Shakti Deepti
doaj   +1 more source

A Fitted Numerical Approach for Singularly Perturbed Two-Parameter Parabolic Problem with Time Delay

open access: yesComputational and Mathematical Methods, 2023
This paper is aimed at constructing and analyzing a fitted approach for singularly perturbed time delay parabolic problems with two small parameters. The proposed computational scheme comprises the implicit Euler and especially finite difference method ...
Imiru Takele Daba   +2 more
doaj   +1 more source

Numerical analysis of Bazykin–Berezovskaya model

open access: yesJournal of Taibah University for Science, 2023
In this manuscript, a Bazykin–Berezovskaya model with diffusion by strong Allee effects is studied. Neumann boundary conditions are used to see the positive solution of a diffusion system.
Zain Ul Abadin Zafar   +3 more
doaj   +1 more source

Implicit High-Order Time Marching Schemes for the Linearized Euler Equations

open access: yesAIAA Journal, 2006
High-order-accurate implicit time-marching methods are presented for discontinuous Galerkin and spectral volume high-order-accurate spatial discretizations of the linearized Euler equations that govern propagation of aeroacoustic disturbances. It is found that despite the additional computational time that is required for the solution of the large ...
Arambatzis, G.   +3 more
openaire   +2 more sources

On some implicit and semi-implicit staggered schemes for the shallow water and Euler equations [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2014
In this paper, we propose implicit and semi-implicit in time finite volume schemes for the barotropic Euler equations (hence, as a particular case, for the shallow water equations) and for the full Euler equations, based on staggered discretizations.
Herbin, Raphaele   +2 more
openaire   +2 more sources

A-stable spectral deferred correction method for nonlinear Allen-Cahn model

open access: yesAlexandria Engineering Journal
This paper presents a type of A-stable spectral deferred correction (SDC) method. The scheme is initiated by the first-order backward Euler method. We adopt the linear stabilization approach for the Allen-Cahn model to get the linear semi-implicit SDC ...
Lin Yao, Xindong Zhang
doaj   +1 more source

Numerical analysis of auto-catalytic glycolysis model

open access: yesAIP Advances, 2019
The main purpose of this paper is to investigate the solution of general reaction–diffusion glycolysis system numerically. Glycolysis model demonstrates the positive solution as the unknown variables show concentration of chemical substances.
Nauman Ahmed   +5 more
doaj   +1 more source

Convergence and stability of the exponential Euler method for semi-linear stochastic delay differential equations

open access: yesJournal of Inequalities and Applications, 2017
The main purpose of this paper is to investigate the strong convergence and exponential stability in mean square of the exponential Euler method to semi-linear stochastic delay differential equations (SLSDDEs).
Ling Zhang
doaj   +1 more source

Numerical treatment of singularly perturbed parabolic partial differential equations with nonlocal boundary condition

open access: yesFrontiers in Applied Mathematics and Statistics, 2022
This paper presents numerical treatments for a class of singularly perturbed parabolic partial differential equations with nonlocal boundary conditions. The problem has strong boundary layers at x = 0 and x = 1.
Getu Mekonnen Wondimu   +3 more
doaj   +1 more source

High order semi-implicit weighted compact nonlinear scheme for the all-Mach isentropic Euler system

open access: yesAdvances in Aerodynamics, 2020
The computation of compressible flows at all Mach numbers is a very challenging problem. An efficient numerical method for solving this problem needs to have shock-capturing capability in the high Mach number regime, while it can deal with stiffness and ...
Yanqun Jiang   +4 more
doaj   +1 more source

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