Results 11 to 20 of about 42,713 (266)

Exponential Response Matrix Spectral Nodal Method for the Discrete Ordinates Neutral Particle Transport Model

open access: yesScience and Technology of Nuclear Installations, 2023
In this work, the response matrix-exponential nodal method is presented to solve fixed source neutral particle transport problems with isotropic scattering and discrete ordinates formulation in two-dimensional Cartesian geometry.
Iram B. Rivas-Ortiz   +3 more
doaj   +2 more sources

A stabilised nodal spectral element method for fully nonlinear water waves [PDF]

open access: yesJournal of Computational Physics, 2016
Accepted for publication in Journal of Computational Physics April 29 ...
A.P. Engsig-Karup   +2 more
openaire   +3 more sources

A Unstructured Nodal Spectral-Element Method for the Navier-Stokes Equations [PDF]

open access: yesCommunications in Computational Physics, 2012
AbstractAn unstructured nodal spectral-element method for the Navier-Stokes equations is developed in this paper. The method is based on a triangular and tetrahedral rational approximation and an easy-to-implement nodal basis which fully enjoys the tensorial product property.
Chen, Lizhen, Shen, Jie, Xu, Chuanju
openaire   +2 more sources

Spectral Method with the Tensor-Product Nodal Basis for the Steklov Eigenvalue Problem [PDF]

open access: yesMathematical Problems in Engineering, 2013
This paper discusses spectral method with the tensor-product nodal basis at the Legendre-Gauss-Lobatto points for solving the Steklov eigenvalue problem. A priori error estimates of spectral method are discussed, and based on the work of Melenk and Wohlmuth (2001), a posterior error estimator of the residual type is given and analyzed.
Zhang, Xuqing, Yang, Yidu, Bi, Hai
openaire   +2 more sources

Construction of Modern Robust Nodal Discontinuous Galerkin Spectral Element Methods for the Compressible Navier–Stokes Equations [PDF]

open access: yes, 2021
Discontinuous Galerkin (DG) methods have a long history in computational physics and engineering to approximate solutions of partial differential equations due to their high-order accuracy and geometric flexibility. However, DG is not perfect and there remain some issues. Concerning robustness, DG has undergone an extensive transformation over the past
Winters, Andrew Ross   +3 more
openaire   +4 more sources

Stability of Overintegration Methods for Nodal Discontinuous Galerkin Spectral Element Methods [PDF]

open access: yesJournal of Scientific Computing, 2017
We perform stability analyses for discontinuous Galerkin spectral element approximations of linear variable coefficient hyperbolic systems in three dimensional domains with curved elements. Although high order, the precision of the quadratures used are typically too low with respect to polynomial order associated with their arguments, which introduces ...
openaire   +2 more sources

A hybrid nodal-staggered pseudo-spectral electromagnetic particle-in-cell method with finite-order centering

open access: yesComputer Physics Communications, 2022
Electromagnetic particle-in-cell (PIC) codes are widely used to perform computer simulations of a variety of physical systems, including fusion plasmas, astrophysical plasmas, plasma wakefield particle accelerators, and secondary photon sources driven by ultra-intense lasers.
Edoardo Zoni   +7 more
openaire   +5 more sources

Analysis of Acoustic–Magnetic Fields Induced by Underwater Pressure Wave in a Finite-Depth Ocean

open access: yesRemote Sensing, 2023
As underwater disturbances (natural or artificial) occur in the ocean, moving seawater crossing the geomagnetic fields will produce weak circular currents.
Yuanguo Zhou   +5 more
doaj   +1 more source

A high accurate scheme for numerical simulation of two-dimensional mass transfer processes in food engineering

open access: yesAlexandria Engineering Journal, 2021
This paper contributes to develop a highly accurate numerical method for solving two-dimensional mass transfer equations during convective air drying of apple slices.
Yin Yang   +4 more
doaj   +1 more source

Inverse nodal problem for p−Laplacian Bessel equation with polynomially dependent spectral parameter

open access: yesDemonstratio Mathematica, 2018
In this study, solution of inverse nodal problem for p−Laplacian Bessel equation is extended to the case that boundary condition depends on polynomial eigenparameter.
Yilmaz Emrah   +2 more
doaj   +1 more source

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