Results 21 to 30 of about 102,961 (219)

Numerical Solution of Non-Linear Prey-Predator System using Finite Elements Method [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2007
A non-linear prey-predator system solved numerically by Galerkin method, and we compare these results with the results of Pius Peter Nyaanga[6] who used finite difference methods, we found that Galerkin finite elements method is faster than finite ...
Saad Manaa, Ahmed Qasem
doaj   +1 more source

Validity of Galerkin Method at Beam’s Nonlinear Vibrations of the Single Mode with the Initial Curvature

open access: yesBuildings, 2023
A common strategy for studying the nonlinear vibrations of beams is to discretize the nonlinear partial differential equation into a nonlinear ordinary differential equation or equations through the Galerkin method.
Yunbo Zhang, Kun Huang, Wei Xu
doaj   +1 more source

Stability under Galerkin truncation of A-stable Runge--Kutta discretizations in time [PDF]

open access: yes, 2014
We consider semilinear evolution equations for which the linear part is normal and generates a strongly continuous semigroup and the nonlinear part is sufficiently smooth on a scale of Hilbert spaces.
Oliver, Marcel, Wulff, Claudia
core   +2 more sources

Stability evaluation of high-order splitting method for incompressible flow based on discontinuous velocity and continuous pressure

open access: yesAdvances in Mechanical Engineering, 2019
In this work, we deal with high-order solver for incompressible flow based on velocity correction scheme with discontinuous Galerkin discretized velocity and standard continuous approximated pressure.
Liyang Xu   +5 more
doaj   +1 more source

The meshless Galerkin method for pressure distribution simulation of horizontal well reservoir

open access: yesPetroleum, 2015
This paper provides a novel three-dimensional meshless Galerkin for horizontal well reservoir simulation. The pressure function is approached by moving least-square method which consists of weight function, basic function and coefficient.
Shuyong Hu   +3 more
doaj   +1 more source

The simulation of gas-dynamic characteristics of centrifugal compressors in turbo-expander units [PDF]

open access: yesE3S Web of Conferences, 2019
Prof. Y. Galerkin and his team have developed and completed designs of 19 single-stage centrifugal compressors for turbo-expander packaged units applying Universal Modeling Method for the company “Turbokholod JSC” since 2005. The most powerful compressor
Rekstin A.   +4 more
doaj   +1 more source

Equivalence Between DFR Method and DG Method for Solving Parabolic Equation and Convection-diffusion Equation

open access: yesJournal of Harbin University of Science and Technology, 2022
The equivalence between direct flux reconstruction method and discontinuous Galerkin method for solving parabolic equation and convection-diffusion equation is studied.
BI Hui, LIU Lei
doaj   +1 more source

On the generalized wavelet-Galerkin method [PDF]

open access: yesJournal of Computational and Applied Mathematics, 2018
In the frame of the traditional wavelet-Galerkin method based on the compactly supported wavelets, it is important to calculate the so-called connection coefficients that are some integrals whose integrands involve products of wavelets, their derivatives as well as some known coefficients in considered differential equations.
Zhaochen Yang, Shijun Liao
openaire   +2 more sources

On Gakerkin approximations for the surface-active quasigeostrophic equations

open access: yes, 2015
We study the representation of solutions of the three-dimensional quasigeostrophic (QG) equations using Galerkin series with standard vertical modes, with particular attention to the incorporation of active surface buoyancy dynamics.
Grooms, Ian   +2 more
core   +1 more source

The Galerkin Method for Solving Strongly Nonlinear Oscillators

open access: yesThe Scientific World Journal, 2022
In this paper, we make use of the Galerkin method for solving nonlinear second-order ODEs that are related to some strongly nonlinear oscillators arising in physics and engineering. We derive the iterative schemes for finding the coefficients that appear
Alvaro H. S. Salas
doaj   +1 more source

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