Results 21 to 30 of about 50,359 (223)

On Galerkin difference methods [PDF]

open access: yesJournal of Computational Physics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jeffrey W. Banks, Thomas M. Hagstrom
openaire   +2 more sources

New version of Universal modeling method for centrifugal compressors calculation development [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019
Similarity theory principles are widely applied in gas dynamic design. But completely new solutions must be realized on a base of engineering approaches to predict performances.
Yu. B. Galerkin, A. A. Drozdov
doaj   +1 more source

Verification of a simplified mathematical model of centrifugal compressor stages [PDF]

open access: yesE3S Web of Conferences, 2019
To calculate the efficiency of a centrifugal compressor, it is sufficient to know the design parameters and similarity criteria: flow rate coefficient, loading factor, relative hub ratio, Mach number.
Rekstin A.   +3 more
doaj   +1 more source

Parametric Problems in Power System Analysis: Recent Applications of Polynomial Approximation Based on Galerkin Method

open access: yesJournal of Modern Power Systems and Clean Energy, 2021
In power systems, there are many uncertainty factors such as power outputs of distributed generations and fluctuations of loads. It is very beneficial to power system analysis to acquire an explicit function describing the relationship between these ...
Hao Wu   +5 more
doaj   +1 more source

A domain decomposition method for solving the three-dimensional time-harmonic Maxwell equations discretized by discontinuous Galerkin methods [PDF]

open access: yes, 2008
We present here a domain decomposition method for solving the three-dimensional time-harmonic Maxwell equations discretized by a discontinuous Galerkin method.
Dolean Maini, Victorita   +2 more
core   +4 more sources

Development of mathematical model of Universal modeling method for centrifugal compressors calculation [PDF]

open access: yesE3S Web of Conferences, 2019
The heart of the Universal modeling engineering method is the physical model that is based on flow visualization and measurements inside rotating impellers. The experience of its application allowed finding ways of mathematical model development.
Galerkin Yuri   +3 more
doaj   +1 more source

Piecewise Fractional Jacobi Polynomial Approximations for Volterra Integro-Differential Equations with Weakly Singular Kernels

open access: yesAxioms, 2022
This paper is concerned with numerical solutions to Volterra integro-differential equations with weakly singular kernels. Making use of the transformed fractional Jacobi polynomials, we develop a class of piecewise fractional Galerkin methods for solving
Haiyang Li, Junjie Ma
doaj   +1 more source

Galerkin eigenvector approximations [PDF]

open access: yesMathematics of Computation, 2000
How close are Galerkin eigenvectors to the best approximation available out of the trial subspace? Under a variety of conditions the Galerkin method gives an approximate eigenvector that approaches asymptotically the projection of the exact eigenvector onto the trial subspace—and this occurs more rapidly than the underlying rate of
openaire   +3 more sources

Extensions of the deep Galerkin method

open access: yesApplied Mathematics and Computation, 2022
We extend the Deep Galerkin Method (DGM) introduced in Sirignano and Spiliopoulos (2018)} to solve a number of partial differential equations (PDEs) that arise in the context of optimal stochastic control and mean field games. First, we consider PDEs where the function is constrained to be positive and integrate to unity, as is the case with Fokker ...
Ali Al-Aradi   +4 more
openaire   +3 more sources

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

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