Results 21 to 30 of about 1,374,010 (208)

A hybrid kinetic WGVC-WENO scheme for compressible flows [PDF]

open access: yes, 2021
In this paper, we propose a hybrid kinetic weighted group velocity control-weighted essentially non-oscillatory (WGVC-WENO) scheme which combines the WGVC-WENO reconstruction technique He et al. (2014) with the hybrid kinetic method proposed in Liu et al.
何康   +8 more
core   +2 more sources

A New Fifth-Order Finite Difference Compact Reconstruction Unequal-Sized WENO Scheme for Fractional Differential Equations

open access: yesFractal and Fractional, 2022
This paper designs a new finite difference compact reconstruction unequal-sized weighted essentially nonoscillatory scheme (CRUS-WENO) for solving fractional differential equations containing the fractional Laplacian operator.
Yan Zhang, Jun Zhu
doaj   +1 more source

New Weighting Strategies for Weno Schemes

open access: yes, 2023
In this article, we propose a modified convex combination of the polynomial reconstructions of odd-order WENO schemes to maintain the central substencil prevalence over the lateral ones in all parts of the solution. New "centered" versions of the classical WENO-Z and its less dissipative counterpart, WENO-Z+, are defined through very simple ...
Daniel Barreto   +3 more
openaire   +3 more sources

Development of central-upwind-WENO scheme for two-phase 1-D drift-flux model [PDF]

open access: yes, 2022
The two-phase drift flux model is extensively used in multiphase flow applications. In this study, we focus on possible numerical schemes for solving the drift flux model.
Berg, Chiristian   +2 more
core   +1 more source

An improved WENO-Z scheme with symmetry-preserving mapping

open access: yesAdvances in Aerodynamics, 2020
Since the classical weighted essentially non-oscillatory (WENO) scheme is proposed, various improved versions have been developed, and a typical one is the WENO-Z scheme.
Zheng Hong, Zhengyin Ye, Kun Ye
doaj   +1 more source

Simulations of Compressible, Diffusive, Reactive Flows with Detailed Chemistry Using a High-Order Hybrid WENO-CD Scheme [PDF]

open access: yes, 2012
A hybrid weighted essentially non-oscillatory (WENO)/centered-difference (CD) numerical method, with low numerical dissipation, high-order shock-capturing, and structured adaptive mesh refinement (SAMR), has been developed for the direct numerical ...
Ziegler, John Lewis (Jack)
core   +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

Fully discrete WENO with double entropy condition for hyperbolic conservation laws

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
This paper put forward a new fully discrete scheme construction method – double entropy condition solution formula method. With that, we turn the state-of-the-art semi-discrete WENO + RK scheme into a fully discrete scheme, which is named as Full-WENO. A
Haitao Dong, Tong Zhou, Fujun Liu
doaj   +1 more source

Low diffusion E-CUSP scheme with implicit high order WENO scheme for preconditioned Navier-Stokes equations [PDF]

open access: yes, 2012
A low diffusion E-CUSP (LDE) scheme for preconditioned Navier-Stokes equations is developed. The LDE scheme with high-order WENO reconstruction and high order difference scheme for viscous terms is used to simulate several flows at various speed from low
申义庆   +7 more
core   +1 more source

Convergence of a proposed adaptive WENO scheme for Hamilton-Jacobi equations [PDF]

open access: yes, 2023
summary:We study high-order numerical methods for solving Hamilton-Jacobi equations. Firstly, by introducing new clear concise nonlinear weights and improving their convex combination, we develop WENO schemes of Zhu and Qiu (2017).
Han, Wonho, Hong, Unhyok, Kim, Kwangil
core   +1 more source

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