Zobrazeno 1 - 10
of 2 691
pro vyhledávání: '"Finite difference coefficient"'
Publikováno v:
Geophysical Prospecting. 68:1771-1792
Finite‐difference modeling with a cross‐rhombus stencil with high‐order accuracy in both spatial and temporal derivatives is a potential method for efficient seismic simulation. The finite‐difference coefficients determined by Taylor‐series
Publikováno v:
Advances in Geo-Energy Research, Vol 3, Iss 4, Pp 410-423 (2019)
Simulation of elastic wave propagation is an important method for oil and gas exploration. Accuracy and efficiency of elastic wave simulation in complex geological environment are always the focus issue. In order to improve the accuracy and efficient
Publikováno v:
Ain Shams Engineering Journal, Vol 9, Iss 4, Pp 647-654 (2018)
In this paper, a mixed finite difference method is proposed to solve singularly perturbed differential difference equations with mixed shifts, solutions of which exhibit boundary layer behaviour at the left end of the interval using domain decomposit
Akademický článek
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Autor:
Karl F. Warnick
Publikováno v:
Numerical Methods for Engineering An introduction using MATLAB® and computational electromagnetics examples ISBN: 9781839530739
In this chapter, we will develop FD and FDTD solvers for a sequence of PDEs of increasing complexity. We will begin with the one-dimensional (1-D) wave equation, and then we will consider Laplace's equation with two spatial dimensions, Maxwell's equa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1618a9a3ec19624d6da3ee95b754679f
https://doi.org/10.1049/sbew548e_ch4
https://doi.org/10.1049/sbew548e_ch4
Publikováno v:
Journal of Computational Physics. 366:191-206
Based on the existing cell-node and cell-centered compact finite difference schemes, we developed a new central compact scheme with a high spectral resolution for the acoustic wave equation. In the new scheme, both the function values on the cell-nod
Autor:
Zedong Wu, Tariq Alkhalifah
Publikováno v:
Journal of Computational Physics. 365:350-361
Numerical simulation of the acoustic wave equation in either isotropic or anisotropic media is crucial to seismic modeling, imaging and inversion. Actually, it represents the core computation cost of these highly advanced seismic processing methods.
Autor:
Jie Wang
Publikováno v:
Journal of Symbolic Computation. 87:1-13
This paper is devoted to studying difference indices of quasi-prime difference algebraic systems. We define the quasi dimension polynomial of a quasi-prime difference algebraic system. Based on this, we give the definition of the difference index of
Autor:
Siyang Wang
Publikováno v:
Journal of Scientific Computing. 77:775-792
This paper presents an extension of a recently developed high order finite difference method for the wave equation on a grid with non-conforming interfaces. The stability proof of the existing methods relies on the interpolation operators being norm-
Publikováno v:
Journal of Applied Geophysics. 152:110-117
When the finite difference (FD) method is employed to simulate the wave propagation , high-order FD method is preferred in order to achieve better accuracy. However, if the order of FD scheme is high enough, the coefficient matrix of the formula for