Results 111 to 120 of about 37,719 (241)

POD-Galerkin reduced-order modeling of the El Niño-Southern Oscillation (ENSO)

Applied Ocean Research
Reduced-order modeling (ROM) aims to mitigate computational complexity by reducing the size of a high-dimensional state space. In this study, we demonstrate the efficiency, accuracy, and stability of proper orthogonal decomposition (POD)-Galerkin ROM ...
Yusuf Aydogdu, Navaratnam Sri Namachchivaya   +1 more
doaj   +1 more source

Characteristics Weak Galerkin Finite Element Methods for Convection-Dominated Diffusion Problems

Abstract and Applied Analysis, 2014
The weak Galerkin finite element method is combined with the method of characteristics to treat the convection-diffusion problems on the triangular mesh.
Ailing Zhu, Qiang Xu, Ziwen Jiang
doaj   +1 more source

Error estimation and adjoint-based adaptation in aerodynamics [PDF]

, 2006
In this article we give an overview of recent developments in error estimation and in residual-based and goal-oriented (adjoint-based) adaptation for Discontinuous Galerkin discretizations of sub- and supersonic viscous compressible flows.
Hartmann, R. (author), Hartmann, Ralf
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Comparison between variational iteration method and Gegenbauer–Galerkin method for solving two dimensional nonlinear Volterra integral equations of the second kind [PDF]

AIP Advances
This paper intends to introduce two numerical techniques—the variational iteration method and the Gegenbauer–Galerkin method—for obtaining solutions to two dimensional nonlinear Volterra integral equations of the second kind.
M. H. Ahmed
doaj   +1 more source

Finite element solutions to boundary value problems [PDF]

, 1976
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis consists of two distinct parts which deal with two-point boundary value problems and parabolic problems, respectively.
Moore, P
core  

Simulation of rock salt dissolution and its impact on land subsidence [PDF]

, 2014
Extensive land subsidence can occur due to subsurface dissolution of evaporites such as halite and gypsum. This paper explores techniques to simulate the salt dissolution forming an intrastratal karst, which is embedded in a sequence of carbonates, marls,
A. Younes, Younes, A., Zidane, A., Zechner, E., Huggenberger, P., P. Huggenberger, A. Zidane, E. Zechner   +7 more
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非定常热对流传导问题的Lagrange-Galerkin方法(英文)

四川大学学报. 自然科学版, 2009
Lagrange-Galerkin方法是求解传导占优的扩散问题的数值方法.它将Galerkin有限元法和沿着质点轨道上关于物质导数的特殊离散结合在一起.本文作者研究了非定常热对流传导问题的Lagrange-Galerkin方法的存在性和最优误差估计.
陈豫眉, 骆艳, 冯民富
doaj  

A NUMERICAL METHOD AND A PARALLEL ALGORITHM FOR SOLVING THE PROBLEM OF ELECTROMAGNETIC WAVE DIFFRACTION ON A NON-PLANAR PERFECTLY CONDUCTING SCREEN

Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2020
Background. The purpose of the work is to develop and implement the parallel algorithm for numerical solving the problem of electromagnetic wave diffraction by non-planar perfectly conducting screens. Materials and methods. Vector integro-differential
A. A. Tsupak
doaj   +1 more source

On the convergence of Galerkin method for solving hypersingular integral equations in special classes of functions

Известия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. The numerical method for solving hypersingular integral equations on a segment that arise in many problems of mathematical physics is considered. Materials and methods.
Yu.G. Smirnov
doaj   +1 more source

Finite Element Approximations for a linear Cahn-Hilliard-Cook equation driven by the space derivative of a space-time white noise [PDF]

, 2012
We consider an initial- and Dirichlet boundary- value problem for a linear Cahn-Hilliard-Cook equation, in one space dimension, forced by the space derivative of a space-time white noise.
Zouraris, Georgios, Kossioris, Georgios
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