Results 11 to 20 of about 66,549 (281)

Unconditionally Stable Algorithm for Copolymer and Copolymer-Solvent Systems

open access: yesPapers in Physics, 2020
In the time evolution simulation of a copolymer system towards its equilibrium configuration, it is common to use the Otha-Kawasaki approach for free energy and time evolution by means of a Cahn-Hilliard diffusion equation.
Aldo Pezzutti, Hugo Hernández
doaj   +1 more source

An Unconditionally Stable Difference Scheme for the Two-Dimensional Modified Fisher–Kolmogorov–Petrovsky–Piscounov Equation

open access: yesJournal of Mathematics, 2023
In this article, we develop an unconditionally stable numerical scheme for the modified Fisher–Kolmogorov–Petrovsky–Piscounov (Fisher–KPP) equation modeling population dynamics in two-dimensional space.
Soobin Kwak   +5 more
doaj   +1 more source

Unconditionally energy stable second-order numerical scheme for the Allen–Cahn equation with a high-order polynomial free energy

open access: yesAdvances in Difference Equations, 2021
In this article, we consider a temporally second-order unconditionally energy stable computational method for the Allen–Cahn (AC) equation with a high-order polynomial free energy potential.
Junseok Kim, Hyun Geun Lee
doaj   +1 more source

An Unconditionally Stable Integration Method for Structural Nonlinear Dynamic Problems

open access: yesMathematics, 2023
This paper presents an unconditionally stable integration method, which introduces a linearly implicit algorithm featuring an explicit displacement expression.
Chuanguo Jia   +5 more
doaj   +1 more source

New Unconditionally Stable Schemes for the Navier-Stokes Equations [PDF]

open access: yesCommunications in Computational Physics, 2021
Summary: In this paper we propose some efficient schemes for the Navier-Stokes equations. The proposed schemes are constructed based on an auxiliary variable reformulation of the underlying equations, recently introduced by \textit{X. L. Li} et al. [``New SAV-pressure correction methods for the Navier-Stokes equations: stability and error analysis ...
Yao, Hui, Azaiez, Mejdi, Xu, Chuanju
openaire   +2 more sources

Two-Step Unconditionally Stable Noniterative Dissipative Displacement Method for Analysis of Nonlinear Structural Dynamics Problems

open access: yesShock and Vibration, 2021
When solving structural dynamic problems, the displacement algorithm needs only calculating and storing structure’s displacements in the main calculation process, which makes the displacement algorithm have advantages over multivariable algorithms in ...
Changqing Li   +4 more
doaj   +1 more source

Unconditionally stable schemes for higher order inpainting [PDF]

open access: yesCommunications in Mathematical Sciences, 2011
Higher order equations, when applied to image inpainting, have certain advantages over second order equations, such as continuation of both edge and intensity information over larger distances. Discretizing a fourth order evolution equation with a brute force method may restrict the time steps to a size up to orderx 4 wherex denotes the step size of ...
Schoenlieb, Carola-Bibiane   +1 more
openaire   +3 more sources

Unconditionally Stable and Convergent Difference Scheme for Superdiffusion with Extrapolation

open access: yesJournal of Scientific Computing, 2023
AbstractApproximating the Hadamard finite-part integral by the quadratic interpolation polynomials, we obtain a scheme for approximating the Riemann-Liouville fractional derivative of order $$\alpha \in (1, 2)$$ α ∈ ( 1 ,
Jinping Yang   +3 more
openaire   +3 more sources

Unconditionally Stable Methods for Hamilton–Jacobi Equations [PDF]

open access: yesJournal of Computational Physics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Karlsen, Kenneth Hvistendahl   +1 more
openaire   +1 more source

Unconditionally stable second-order accurate scheme for a parabolic sine-Gordon equation

open access: yesAIP Advances, 2022
In this study, we propose an unconditionally stable temporally second-order accurate scheme for a parabolic sine-Gordon equation. The proposed scheme is based on an operator splitting method.
Seokjun Ham   +3 more
doaj   +1 more source

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