Results 31 to 40 of about 2,258,481 (223)

Improvements for drift-diffusion plasma fluid models with explicit time integration [PDF]

open access: yesPlasma Sources Science & Technology, 2019
Drift-diffusion plasma fluid models are commonly used to simulate electric discharges. Such models can computationally be very efficient if they are combined with explicit time integration.
J. Teunissen
semanticscholar   +1 more source

Implicit-explicit time integration of nonlinear fractional differential equations

open access: yes, 2020
Efficient long-time integration of nonlinear fractional differential equations is significantly challenging due to the integro-differential nature of the fractional operators.
Yongtao Zhou   +3 more
semanticscholar   +1 more source

Survey on Semi-explicit Time Integration of Eddy Current Problems [PDF]

open access: yes, 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
openaire   +2 more sources

Explicit time integration with lumped mass matrix for enriched finite elements solution of time domain wave problems

open access: yes, 2020
We present a partition of unity finite element method for wave propagation problems in the time domain using an explicit time integration scheme. Plane wave enrichment functions are introduced at the finite elements nodes which allows for a coarse mesh ...
M. Drolia   +4 more
semanticscholar   +1 more source

Time-domain soil-structure interaction analysis of nuclear facilities on non-horizontal layered site

open access: yesYantu gongcheng xuebao, 2020
The state-of-the-practice soil-structure interaction (SSI) of nuclear facilities are analyzed using the frequency-domain approaches, represented by the SASSI program.
CHEN Shao-lin 1, ZHANG Jiao 1, GUO Qi-chao 1, ZHOU Guo-liang 2, LIU Qi-fang 3, WANG Jun-quan 1
doaj   +1 more source

Efficient Numerical Integration Algorithm of Probabilistic Risk Assessment for Aero-Engine Rotors Considering In-Service Inspection Uncertainties

open access: yesAerospace, 2022
Numerical integration methods have the characteristics of high efficiency and precision, making them attractive for aero-engine probabilistic risk assessment and design optimization of an inspection plan.
Guo Li   +4 more
doaj   +1 more source

Integrating rotation from angular velocity [PDF]

open access: yes, 2011
\ud The integration of the rotation from a given angular velocity is often required in practice. The present paper explores how the choice of the parametrization of rotation, when employed in conjuction with different numerical time-integration schemes ...
Ahmed   +39 more
core   +2 more sources

A coupled implicit-explicit time integration method for compressible unsteady flows [PDF]

open access: yesJournal of Computational Physics, 2019
This paper addresses how two time integration schemes, the Heun's scheme for explicit time integration and the second-order Crank-Nicolson scheme for implicit time integration, can be coupled spatially.
Laurent Muscat   +3 more
semanticscholar   +1 more source

On nonconvex meshes for elastodynamics using virtual element methods with explicit time integration

open access: yesComputer Methods in Applied Mechanics and Engineering, 2019
While the literature on numerical methods (e.g. finite elements and, to a certain extent, virtual elements) concentrates on convex elements, there is a need to probe beyond this limiting constraint so that the field can be further explored and developed.
Kyoungsoo Park, Heng Chi, G. Paulino
semanticscholar   +1 more source

An Improved Multi-Frame Coherent Integration Algorithm for Heterogeneous Radar

open access: yesRemote Sensing, 2023
This paper proposes an improved multi-frame coherent integration algorithm to improve the detection performance of weak targets in heterogeneous radar.
Yiheng Liu   +4 more
doaj   +1 more source

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