Results 41 to 50 of about 3,034,852 (247)

On the construction and properties of WENO schemes order five, seven, nine, eleven and thirteen. Part 1. Construction and stability [PDF]

open access: yesКомпьютерные исследования и моделирование, 2016
Currently, different nonlinear numerical schemes of the spatial approximation are used in numerical simulation of boundary value problems for hyperbolic systems of partial differential equations (e. g.
Nikolay Mikhaylovitch Evstigneev
doaj   +1 more source

A New Entropy Stable Finite Difference Scheme for Hyperbolic Systems of Conservation Laws

open access: yesMathematics, 2023
The hyperbolic problem has a unique entropy solution, which maintains the entropy inequality. As such, people hope that the numerical results should maintain the discrete entropy inequalities accordingly. In view of this, people tend to construct entropy
Zhizhuang Zhang   +4 more
doaj   +1 more source

Modelling chemical advection during magma ascent [PDF]

open access: yesGeoscientific Model Development
Modelling magma transport requires robust numerical schemes for chemical advection. Current numerical schemes vary in their ability to be mass conservative, computationally efficient, and accurate.
H. Dominguez   +3 more
doaj   +1 more source

A New Compact WENO5 Scheme

open access: yesJournal of Harbin University of Science and Technology, 2020
With the continuous deepening of scientific research, the current calculation schemes is still unable to meet the requirements of high accuracy, high resolution, high efficiency and high stability for numerical simulation of fluid mechanics.
SUN Yang, LI Xinghua, AI Xiaohui
doaj   +1 more source

High order modeling of shocks and disturbances in compressible flows using WENO scheme [PDF]

open access: yesمجله مدل سازی در مهندسی, 2000
Two new higher order version of WENO schemes are introduces and problems are solved to investigate problems containing shocks and disturbances in compressible flow.
Mohamad Salehabadi   +2 more
doaj   +1 more source

Well-balanced finite volume multi-resolution schemes for solving the Ripa models

open access: yesAdvances in Mechanical Engineering, 2021
In this article, fifth order well-balanced finite volume multi-resolution weighted essentially non-oscillatory (FV MR-WENO) schemes are constructed for solving one-dimensional and two-dimensional Ripa models. The Ripa system generalizes the shallow water
Asad Rehman   +3 more
doaj   +1 more source

A new type of third-order finite volume multi-resolution WENO schemes on tetrahedral meshes

open access: yesJournal of Computational Physics, 2020
In this continuing paper of [J. Comput. Phys., 375 (2018), 659-683; J. Comput. Phys., 392 (2019), 19-33], we design a new third-order finite volume multi-resolution weighted essentially non-oscillatory (WENO) scheme for solving hyperbolic conservation ...
Jun Zhu, Chi-Wang Shu
semanticscholar   +1 more source

A New Sixth-Order Finite Difference Compact Reconstruction Unequal-Sized WENO Scheme for Nonlinear Degenerate Parabolic Equations

open access: yesJournal of Mathematics, 2022
In this paper, a new sixth-order finite difference compact reconstruction unequal-sized weighted essentially nonoscillatory (CRUS-WENO) scheme is designed for solving the nonlinear degenerate parabolic equations on structured meshes.
Liang Li, Yan Zhang, Jun Zhu
doaj   +1 more source

Three-level order-adaptive weighted essentially non-oscillatory schemes

open access: yesResults in Applied Mathematics, 2021
Classical fifth-order weighted essentially non-oscillatory (WENO) schemes are based on reconstructions from three consecutive second-order polynomials.
A. Arun Govind Neelan   +2 more
doaj   +1 more source

Fifth-Order Mapped Semi-Lagrangian Weighted Essentially Nonoscillatory Methods Near Certain Smooth Extrema

open access: yesJournal of Applied Mathematics, 2014
Fifth-order mapped semi-Lagrangian weighted essentially nonoscillatory (WENO) methods at certain smooth extrema are developed in this study. The schemes contain the mapped semi-Lagrangian finite volume (M-SL-FV) WENO 5 method and the mapped compact semi ...
Lang Wu   +3 more
doaj   +1 more source

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