A divergence‐free semi‐implicit finite volume scheme for ideal, viscous, and resistive magnetohydrodynamics
Sign Up to like & getrecommendations! Published in 2019 at "International Journal for Numerical Methods in Fluids"
DOI: 10.1002/fld.4681
Abstract: Summary In this paper, we present a novel pressure‐based semi‐implicit finite volume solver for the equations of compressible ideal, viscous, and resistive magnetohydrodynamics (MHD). The new method is conservative for mass, momentum, and total energy,… read more here.
Keywords: finite volume; method; magnetohydrodynamics; semi implicit ... See more keywords
A mixed finite‐element, finite‐volume, semi‐implicit discretization for atmospheric dynamics: Cartesian geometry
Sign Up to like & getrecommendations! Published in 2019 at "Quarterly Journal of the Royal Meteorological Society"
DOI: 10.1002/qj.3501
Abstract: To meet the challenges posed by future generations of massively parallel supercomputers, a reformulation of the dynamical core for the Met Office's weather and climate model is presented. This new dynamical core uses explicit finite‐volume… read more here.
Keywords: finite element; finite volume; geometry; model ... See more keywords
A novel semi-implicit scheme for elastodynamics and wave propagation in nearly and truly incompressible solids
Sign Up to like & getrecommendations! Published in 2021 at "Acta Mechanica"
DOI: 10.1007/s00707-020-02883-5
Abstract: This paper presents a novel semi-implicit scheme for elastodynamics and wave propagation problems in nearly and truly incompressible material models. The proposed methodology is based on the efficient computation of the Schur complement for the… read more here.
Keywords: semi implicit; scheme; nearly truly; wave propagation ... See more keywords
Semi-implicit Milstein approximation scheme for non-colliding particle systems
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DOI: 10.1007/s10092-019-0319-2
Abstract: We introduce a semi-implicit Milstein approximation scheme for some class of non-colliding particle systems modeled by systems of stochastic differential equations with non-constant diffusion coefficients. We show that the scheme converges at the rate of… read more here.
Keywords: non colliding; milstein approximation; colliding particle; implicit milstein ... See more keywords
Stability and convergence analysis of a semi-implicit fractional FEM-scheme for non-Newtonian fluid flows of polymer aqueous solutions with fractional time-derivative
Sign Up to like & getrecommendations! Published in 2020 at "Computational and Applied Mathematics"
DOI: 10.1007/s40314-020-1110-3
Abstract: In this paper, a fully discrete fractional semi-implicit FEM-scheme is developed to study the non-Newtonian fluid flow of polymer aqueous solutions in a two-dimensional domain using Caputo’s fractional time-derivative. The fractional-time scheme is coupled with… read more here.
Keywords: scheme; fractional time; non newtonian; semi implicit ... See more keywords
Decoupled, semi-implicit scheme for a coupled system arising in magnetohydrodynamics problem
Sign Up to like & getrecommendations! Published in 2018 at "Applied Numerical Mathematics"
DOI: 10.1016/j.apnum.2018.01.005
Abstract: Abstract In this paper, we focus on a decoupled, linearized semi-implicit Galerkin FEM scheme for a MHD system coupled by the time-dependent Navier–Stokes equation with the steady Maxwell's equations in three-dimensional convex domain. First, additional… read more here.
Keywords: system; implicit scheme; scheme; magnetohydrodynamics ... See more keywords
Semi-implicit direct forcing immersed boundary method for incompressible viscous thermal flow problems: A Schur complement approach
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2018.06.099
Abstract: An extended immersed boundary method utilizing a semi-implicit direct forcing approach for the simulation of confined incompressible viscous thermal flow problems is presented. The method utilizes a Schur complement approach to enforce the kinematic constraints… read more here.
Keywords: boundary method; method; approach; semi implicit ... See more keywords
Semi‐implicit FDTD TW scheme for modelling effective surface plasmons
Sign Up to like & getrecommendations! Published in 2018 at "Electronics Letters"
DOI: 10.1049/el.2018.6321
Abstract: A semi-implicit finite-difference time-domain thin-wire (TW) scheme with a relaxed stability condition is proposed for modelling effective surface plasmons in waveguide metamaterials. Its formulation is based on introducing the Newmark-Beta method into the TW formulation… read more here.
Keywords: effective surface; surface plasmons; modelling effective; scheme ... See more keywords
Three semi-implicit compact finite difference schemes for the nonlinear partial integro-differential equation arising from viscoelasticity
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Modelling and Simulation"
DOI: 10.1080/02286203.2020.1720566
Abstract: ABSTRACT Three semi-implicit compact finite difference schemes are described for the nonlinear partial integro-differential equation arising from viscoelasticity. In our methods, the time derivative is approximated by the backward-Euler, Crank–Nicolson-type and formally second-order backward differentiation… read more here.
Keywords: difference; three semi; compact finite; finite difference ... See more keywords
Semi-Implicit Euler Digital Implementation of Conditioned Super-Twisting Algorithm With Actuation Saturation
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2022.3229380
Abstract: The standard super-twisting algorithm (STA) suffers from the windup problem when the actuator of the underlying controlled system is saturated. In the literature, an extension of the standard STA called conditioned STA was proposed to… read more here.
Keywords: twisting algorithm; implicit euler; semi implicit; super twisting ... See more keywords
A Comparison Between Weakly-Compressible Smoothed Particle Hydrodynamics (WCSPH) and Moving Particle Semi-Implicit (MPS) Methods for 3D Dam-Break Flows
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Computational Methods"
DOI: 10.1142/s021987622050036x
Abstract: Lagrangian particle-based methods have opened new perspectives for the investigation of complex problems with large free-surface deformation. Some well-known particle-based methods adopted to solve non-linear hydrodynamics problems are the smoothed parti- cle hydrodynamics (SPH) and… read more here.
Keywords: particle semi; hydrodynamics; moving particle; particle ... See more keywords