Results 1 to 10 of about 1,846,403 (331)

The ultraspherical spectral element method [PDF]

open access: yesJournal of Computational Physics, 2021
We introduce a novel spectral element method based on the ultraspherical spectral method and the hierarchical Poincaré-Steklov scheme for solving second-order linear partial differential equations on polygonal domains with unstructured quadrilateral or triangular meshes.
Fortunato, Daniel   +2 more
semanticscholar   +7 more sources

Investigation and Analysis of Acoustojets by Spectral Element Method

open access: yesMathematics, 2022
In this study, acoustic wave scattering in a homogeneous media by an obstacle is examined in the case of plane wave excitation and the formation of acoustic jets is explored.
Ibrahim Mahariq   +5 more
doaj   +2 more sources

Spectral element method for parabolic interface problems

open access: yesComputer Methods in Applied Mechanics and Engineering, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Khan, Arbaz (author)   +2 more
semanticscholar   +7 more sources

Legendre spectral element method for solving Volterra-integro differential equations

open access: yesResults in Applied Mathematics, 2020
In this article, we present a spectral element method for numerical solution of linear Volterra integro-differential equations with boundary conditions. First, we obtain discrete form of the problem using the spectral element method.
Mahmoud Lotfi, Amjad Alipanah
doaj   +2 more sources

Photonic Nanojet Analysis by Spectral Element Method

open access: yesIEEE Photonics Journal, 2014
Although it is known that the spectral element method (SEM) has both high accuracy and a lower computational cost when compared with finite-element or finite-difference methods, the SEM is not widely utilized in the modeling of boundary value problems in
I. Mahariq   +3 more
doaj   +4 more sources

Accuracy of spectral element method for wave, parabolic and Schrödinger equations [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2021
The spectral element method constructed by the $Q^k$ ($k\geq 2$) continuous finite element method with $(k+1)$-point Gauss-Lobatto quadrature on rectangular meshes is a popular high order scheme for solving wave equations in various applications.
Hao Li, D. Appelö, Xiangxiong Zhang
semanticscholar   +1 more source

Spectral element method For 3-D controlled-source electromagnetic forward modelling using unstructured hexahedral meshes

open access: yesGeophysical Journal International, 2022
For forward modelling of realistic 3-D land-based controlled-source electromagnetic problems, we develop a parallel spectral element approach, blending the flexibility and versatility of the finite element method in using unstructured grids with the ...
M. Weiss, T. Kalscheuer, Z. Ren
semanticscholar   +1 more source

An efficient spectral element method for two-dimensional magnetotelluric modeling

open access: yesFrontiers in Earth Science, 2023
We introduce a new efficient spectral element approach to solve the two-dimensional magnetotelluric forward problem based on Gauss–Lobatto–Legendre polynomials.
Xiaozhong Tong   +4 more
doaj   +1 more source

Efficient SVV stabilized triangular spectral element methods for incompressible flows of high Reynolds numbers

open access: yesAdvances in Aerodynamics, 2022
In this paper, we propose a spectral vanishing viscosity method for the triangular spectral element computation of high Reynolds number incompressible flows.
Lizhen Chen, Tao Tang, Chuanju Xu
doaj   +1 more source

Moment Tensor Solutions for Earthquakes in the Southern Korean Peninsula Using Three-Dimensional Seismic Waveform Simulations

open access: yesFrontiers in Earth Science, 2022
Precise estimates of earthquake source properties are crucial for understanding earthquake processes and assessing seismic hazards. Seismic waveforms can be affected not only by individual event properties, but from the Earth’s interior heterogeneity ...
Jung-Hun Song   +4 more
doaj   +1 more source

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