Results 31 to 40 of about 3,128,332 (289)
Stable schemes for second-moment turbulent models for incompressible flows
Comptes Rendus. Mécanique, 2023 A stable scheme is proposed in this paper in order to obtain approximate solutions of second-moment turbulent models for incompressible flows with or without thermal transport equation. The analysis of the convective terms, which includes the solution of
Ferrand, Martin +3 more
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Numerical Analysis of Stochastic Schemes in Geophysics [PDF]
SIAM Journal on Numerical Analysis, 2005 Summary: We present and study the stability, convergence, and order of convergence of a numerical scheme used in geophysics, namely, the stochastic version of a deterministic ''implicit leapfrog'' scheme which has been developed for the approximation of the so-called barotropic vorticity model.
Brian D. Ewald, Roger Temam
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A Rapid Solver for the Prediction of Flow-Field of High-Speed Vehicle Moving in a Tube
Energies, 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
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Symmetry-Preserving Numerical Schemes [PDF]
, 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
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Numerical Solution of Parabolic Equations by the Box Scheme [PDF]
, 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
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Numerical schemes for nonlinear predictor feedback [PDF]
Mathematics 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
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Frontiers 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
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Entropy splitting for high-order numerical simulation of compressible turbulence [PDF]
, 2002 A stable high-order numerical scheme for direct numerical simulation (DNS) of shock-free compressible turbulence is presented. The method is applicable to general geometries. It contains no upwinding, artificial dissipation, or filtering.
Li, Q. +5 more
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Известия высших учебных заведений: Нефть и газ, 2018 The article presents the mathematical modeling of heated gas dissociation process into the reservoir saturated with methane and its hydrate. We studied how different factors has affected the dissociation process.
N. G. Musakaev +2 more
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On the accuracy of invariant numerical schemes
Communications 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, Marx, Hamdouni, Aziz
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