Results 11 to 20 of about 284,637 (183)

Semi-spectral Chebyshev method in Quantum Mechanics [PDF]

open access: yes, 2006
Traditionally, finite differences and finite element methods have been by many regarded as the basic tools for obtaining numerical solutions in a variety of quantum mechanical problems emerging in atomic, nuclear and particle physics, astrophysics ...
A. Deloff   +34 more
core   +2 more sources

Combined Finite-Discrete Element Modelling of Dynamic Rock Fracture and Fragmentation during Mining Production Process by Blast

open access: yesShock and Vibration, 2021
A combined finite-discrete element method (FDEM) is proposed to model the dynamic fracture, fragmentation, and resultant muck-piling process during mining production by blast in underground mine.
Huaming An   +3 more
doaj   +1 more source

Slope Failure of Noncohesive Media Modelled with the Combined Finite–Discrete Element Method

open access: yesApplied Sciences, 2019
Slope failure behaviour of noncohesive media with the consideration of gravity and ground excitations is examined using the two-dimensional combined finite⁻discrete element method (FDEM).
Xudong Chen, Hongfan Wang
doaj   +1 more source

Investigation of the Anisotropic Characteristics of Layered Rocks under Uniaxial Compression Based on the 3D Printing Technology and the Combined Finite-Discrete Element Method

open access: yesAdvances in Materials Science and Engineering, 2020
The excavation in layered rocks is an issue for a number of geoengineering applications; these kinds of rocks all exhibit transverse isotropic features due to the process of metamorphic differentiation.
Fan He, Quansheng Liu, Penghai Deng
doaj   +1 more source

Convergence analysis of energy conserving explicit local time-stepping methods for the wave equation [PDF]

open access: yes, 2017
Local adaptivity and mesh refinement are key to the efficient simulation of wave phenomena in heterogeneous media or complex geometry. Locally refined meshes, however, dictate a small time-step everywhere with a crippling effect on any explicit time ...
Grote, Marcus J.   +2 more
core   +4 more sources

A class of Galerkin schemes for time-dependent radiative transfer [PDF]

open access: yes, 2015
The numerical solution of time-dependent radiative transfer problems is challenging, both, due to the high dimension as well as the anisotropic structure of the underlying integro-partial differential equation.
Egger, Herbert, Schlottbom, Matthias
core   +2 more sources

Stability analysis of dry stone lintels using combined finite-discrete element method

open access: yesGrađevinar, 2015
The use of the combined finite-discrete element method (FEM/DEM) in the analysis of seismic resistance of dry stone lintels is presented in this paper.
Emili Zubović   +2 more
doaj   +1 more source

Resultant Normal Contact Force-Based Contact Friction Model for the Combined Finite-Discrete Element Method and Its Validation

open access: yesMathematics, 2023
In the conventional FDEM (Combined Finite and Discrete Element Method), each contact pair might have multiple contact points where friction forces are applied, leading to non-unique friction force assignments and potentially introducing computational ...
He Liu   +5 more
doaj   +1 more source

Analysis of writing characteristics of CF-SPT head using 3-D read/write simulation system [PDF]

open access: yes, 2004
Recently, the increase of areal recording density is remarkable. In order to develop a high density recording device, a read/write (R/W) simulation using three dimensional (3-D) magnetic field analysis is indispensable.
Ohtake, Masaya   +2 more
core   +1 more source

Supraconvergence of a Finite Difference Scheme for Elliptic Boundary Value Problems of the Third Kind in Fractional Order Sobolev Spaces [PDF]

open access: yes, 2006
In this paper, we study the convergence of the finite difference discretization of a second order elliptic equation with variable coefficients subject to general boundary conditions. We prove that the scheme exhibits the phenomenon of supraconvergence on
Emmrich, Etienne   +1 more
core   +1 more source

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