Results 21 to 30 of about 5,348 (248)

Conservative numerical methods for model kinetic equations [PDF]

open access: yes, 2007
A new conservative discrete ordinate method for nonlinear model kinetic equations is proposed. The conservation property with respect to the collision integral is achieved by satisfying at the discrete level approximation conditions used in deriving the ...
Titarev, Vladimir A.
core   +1 more source

Compact and stable discontinuous Galerkin methods for convection-diffusion problems [PDF]

open access: yes, 2012
We present a new scheme, the compact discontinuous Galerkin 2 (CDG2) method, for solving nonlinear convection-diffusion problems together with a detailed comparison to other well-accepted DG methods.
Dedner, A.   +3 more
core   +1 more source

Exact and approximate solutions of Riemann problems in non-linear elasticity [PDF]

open access: yes, 2009
Eulerian shock-capturing schemes have advantages for modelling problems involving complex non-linear wave structures and large deformations in solid media.
Barton, Philip Trevor   +3 more
core   +1 more source

Shear waves in a nonlinear elastic cylindrical shell [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
Asymptotic integration methods have been used to model the propagation of a shear wave beam along a nonlinear-elastic cylindrical shell of the Sanders – Koiter model. The shell is assumed to be made of a material characterized by a cubic dependence
Zemlyanukhin, Alexandr Isaevich   +2 more
doaj   +1 more source

Thermo-electrical buckling response of actuated functionally graded piezoelectric nanoscale plates

open access: yesResults in Physics, 2019
In this work, the analytical investigation of thermo-electrical buckling of a functionally graded piezoelectric nanoscale plate is obtained via a refined hyperbolic higher-order shear deformation theory.
Ashraf M. Zenkour, Maryam H. Aljadani
doaj   +1 more source

Efficient explicit time integration for the simulation of acoustic and electromagnetic waves [PDF]

open access: yes, 2015
The efficient and accurate numerical simulation of time-dependent wave phenomena is of fundamental importance in acoustic, electromagnetic or seismic wave propagation.
Mehlin, Michaela
core   +1 more source

WENO schemes on arbitrary mixed-element unstructured meshes in three space dimensions [PDF]

open access: yes, 2010
The paper extends weighted essentially non-oscillatory (WENO) methods to three dimensional mixed-element unstructured meshes, comprising tetrahedral, hexahedral, prismatic and pyramidal elements. Numerical results illustrate the convergence rates and non-
Tsoutsanis, Panagiotis   +2 more
core   +1 more source

Closed-Form Meromorphic Solutions of High-Order and High-Dimensional Differential Equations

open access: yesAxioms
In this paper, we investigate closed-form meromorphic solutions of the fifth-order Sawada-Kotera (fSK) equation and (3+1)-dimensional generalized shallow water (gSW) equation. The study of high-order and high-dimensional differential equations is pivotal
Hongqiang Tu, Yongyi Gu
doaj   +1 more source

Extraction of solitons in multimode fiber for CHNLSEs using improved modified extended tanh function method

open access: yesAlexandria Engineering Journal
The coupled higher-order nonlinear Schrödinger equations (CHNLSEs) are investigated in this paper. This model mimic the actuation of the solitons through multimode fibers.
Ola El-Shamy   +4 more
doaj   +1 more source

A Numerical Implementation of a Nonlinear Mild Slope Model for Shoaling Directional Waves

open access: yesJournal of Marine Science and Engineering, 2014
We describe the numerical implementation of a phase-resolving, nonlinear spectral model for shoaling directional waves over a mild sloping beach with straight parallel isobaths.
Justin R. Davis   +3 more
doaj   +1 more source

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