Results 31 to 40 of about 3,494,748 (301)

A Rapid Solver for the Prediction of Flow-Field of High-Speed Vehicle Moving in a Tube

open access: yesEnergies, 2022
High-speed vehicles traveling in a tube with pressures similar to those experienced by aircraft at their maximum altitude are presented. Although the concept resembles Hyperloop, the pressure level investigated here is much higher and safer than that ...
Mohammed Abdulla, Khalid A. Juhany
doaj   +1 more source

NUMERICAL OPTIMIZATION OF A MULTIPHYSICS CALCULATION SCHEME [PDF]

open access: yesEPJ Web of Conferences, 2021
This work concerns the numerical optimization of a multiphysics calculation scheme. The considered application is a 5x5 Pressurized Water Reactor (PWR) assemblies mini-core surrounded by radial and axial reflectors. The scenario adopted for the analysis is steady-state nominal conditions and fission products set to the equilibrium concentration.
Cattaneo, Paolo   +4 more
openaire   +4 more sources

Numerical Solution of Parabolic Equations by the Box Scheme [PDF]

open access: yes, 1973
The box scheme proposed by H. B. Keller is a numerical method for solving parabolic partial differential equations. We give a convergence proof of this scheme for the heat equation, for a linear parabolic system, and for a class of nonlinear parabolic ...
Fong, Kirby William
core   +1 more source

Numerical scheme.

open access: yes, 2021
The full detailed derivation of the numerical scheme used for simulating the numerical results. (PDF)
J. E. F. Green (3189057)   +4 more
core   +1 more source

Symmetry-Preserving Numerical Schemes [PDF]

open access: yes, 2017
In these lectures we review two procedures for constructing finite difference numerical schemes that preserve symmetries of differential equations. The first approach is based on Lie's infinitesimal symmetry generators, while the second method uses the novel theory of equivariant moving frames.
Bihlo, Alexander, Valiquette, Francis
openaire   +2 more sources

Numerical schemes for nonlinear predictor feedback [PDF]

open access: yesMathematics of Control, Signals, and Systems, 2014
Implementation is a common problem with feedback laws with distributed delays. This paper focuses on a specific aspect of the implementation problem for predictor-based feedback laws: the problem of the approximation of the predictor mapping. It is shown that the numerical approximation of the predictor mapping by means of a numerical scheme in ...
Iasson Karafyllis, Miroslav Krstic
openaire   +5 more sources

Explicit Solution of the Time Domain Volume Integral Equation Using a Stable Predictor-Corrector Scheme [PDF]

open access: yes, 2012
An explicit marching-on-in-time (MOT) scheme for solving the time domain volume integral equation is presented. The proposed method achieves its stability by employing, at each time step, a corrector scheme, which updates/corrects fields computed by the ...
Bağcı, H   +11 more
core   +1 more source

Mathematical epidemiological modeling and analysis of monkeypox dynamism with non-pharmaceutical intervention using real data from United Kingdom

open access: yesFrontiers in Public Health, 2023
In this study, a mathematical model for studying the dynamics of monkeypox virus transmission with non-pharmaceutical intervention is created, examined, and simulated using real-time data.
Mercy Ngungu   +5 more
doaj   +1 more source

On the accuracy of invariant numerical schemes

open access: yesCommunications on Pure and Applied Analysis, 2011
In this paper we present a method of construction of invariant numerical schemes for partial differential equations. The resulting schemes preserve the Lie-symmetry group of the continuous equation and they are at least as accurate as the original scheme.
Chhay, M., Hamdouni, Aziz
openaire   +3 more sources

An Energy Conserving Numerical Scheme for the Klein–Gordon Equation with Cubic Nonlinearity

open access: yes, 2022
In this paper, we develop a numerical scheme that conserves the discrete energy for solving the Klein-Gordon equation with cubic nonlinearity. We prove theoretically that our scheme conserves not just discrete energy, but also other energy-like discrete ...
Valipuram Manoranjan, Lewa’ Alzaleq
core   +1 more source

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