Results 11 to 20 of about 127,128 (302)
AcousticsThis study delves into the effectiveness of two time integration techniques, namely the adaptive implicit–explicit (imp–exp) and explicit–explicit (exp–exp) methods, which stand as efficient formulations for tackling intricate systems characterized by ...
Delfim Soares +3 more
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Semi-explicit Unconditionally Stable Time Integration method based on Generalized-α technique [PDF]
مهندسی عمران شریف, 2022 In structural dynamic analysis, various time integration techniques have been proposed. Generally, these algorithms discretize the time domain into a finite number of intervals and approximate the displacements, velocities, and accelerations via ...
A.H namadchi +2 more
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Survey on Semi-explicit Time Integration of Eddy Current Problems [PDF]
, 2018 The spatial discretization of the magnetic vector potential formulation of magnetoquasistatic field problems results in an infinitely stiff differential-algebraic equation system. It is transformed into a finitely stiff ordinary differential equation system by applying a generalized Schur complement.
Jennifer Dutiné +2 more
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Probabilistic time integration for semi-explicit PDAEs
Statistics and ComputingAbstract This paper deals with the application of probabilistic time integration methods to semi-explicit partial differential–algebraic equations of parabolic type and its semi-discrete counterparts, namely semi-explicit differential–algebraic equations of index 2.
Robert Altmann, Afsaneh Moradi
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Implicit-explicit time integration for the immersed wave equation
Computers & Mathematics with Applications, 2023 Immersed boundary methods simplify mesh generation by embedding the domain of interest into an extended domain that is easy to mesh, introducing the challenge of dealing with cells that intersect the domain boundary. Combined with explicit time integration schemes, the finite cell method introduces a lower bound for the critical time step size ...
Christian Faßbender +4 more
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Adaptive FEM with explicit time integration for the wave equation
Journal of Computational and Applied MathematicsStarting from a recent a posteriori error estimator for the finite element solution of the wave equation with explicit time-stepping [Grote, Lakkis, Santos, 2024], we devise a space-time adaptive strategy which includes both time evolving meshes and local time-stepping [Diaz, Grote, 2009] to overcome any overly stringent CFL stability restriction on ...
Marcus J. Grote +2 more
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An Efficient Implementation of Phase Field Method with Explicit Time Integration [PDF]
Journal of Applied and Computational Mechanics, 2020 The phase field method integrates the Griffith theory and damage mechanics approach to predict crack initiation, propagation, and branching within one framework.
Wenlong Zhang, Ala Tabiei
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Buildings, 2022 Wave-based acoustics simulation methods such as finite element method (FEM) are reliable computer simulation tools for predicting acoustics in architectural spaces.
Takumi Yoshida +2 more
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An Explicit Time Marching Technique With Solution-Adaptive Time Integration Parameters
Computer Modeling in Engineering & Sciences, 2015 In this work, an explicit time marching procedure, with solution-adaptive time integration parameters, is introduced for the analysis of hyperbolic models. The proposed technique is conditionally-stable, second-order accurate and it has controllable algorithm dissipation, which locally adapts at each time step, according to the computed solution. Thus,
Delfim Soares Jr.
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Algorithms, 2022 Based on many previous experiments, the most efficient explicit and stable numerical method to solve heat conduction problems is the leapfrog-hopscotch scheme.
Ali Habeeb Askar +3 more
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