Results 41 to 50 of about 946,299 (211)

A sixth-order central WENO scheme for nonlinear degenerate parabolic equations [PDF]

open access: yes, 2022
In this paper we develop a new sixth-order finite difference central weighted essentially non-oscillatory (WENO) scheme with Z-type nonlinear weights for nonlinear degenerate parabolic equations.
Rathan, Samala, Gu, Jiaxi
core   +1 more source

A high order multi-resolution WENO numerical scheme for solving viscous quantum hydrodynamic model for semiconductor devices

open access: yesResults in Physics, 2021
In this article, fifth order finite volume multi-resolution weighted essentially non-oscillatory (MR-WENO) scheme is developed for solving one-dimensional non linear viscous quantum hydrodynamical model for semiconductor devices with constant temperature.
Tauqeer Ahmed   +3 more
doaj   +1 more source

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

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   +3 more
core   +1 more source

Modelling shock-induced instabilities, transition and turbulent mixing using high-order methods [PDF]

open access: yes, 2008
High-order numerical methods have been considered and implemented in order to assess their applicability in a range of complex ows centering on shockinduced turbulent mixing.
Mosedale, Andrew Daniel
core   +2 more sources

A new weighting method for improving the WENO-Z scheme

open access: yes, 2018
The calculation of the weight of each substencil is very important for a weighted essentially nonoscillatory (WENO) scheme to obtain high-order accuracy in smooth regions and keep the essentially nonoscillatory property near discontinuities.
申义庆, Yu M, Zeng FJ, 刘升平
core   +1 more source

E-CUSP scheme for the equations of ideal magnetohydrodynamics with high order WENO Scheme

open access: yes, 2012
An E-CUSP (energy-convective upwind and split pressure) scheme is developed to solve the equations of magnetohydrodynamics. Fifth order WENO reconstructions are employed to calculate the fluxes in order to achieve high order spacial accuracy.
申义庆   +4 more
core   +1 more source

Rheological Modeling and Numerical Simulation of Annular Flow of a Drilling Mud Based on Local Materials: Theoretical Parametric Study

open access: yesEngineering Reports, Volume 8, Issue 8, August 2026.
Numerical and analytical modeling of annular flow reveals the hydraulic performance of sustainable drilling muds formulated from Congolese kaolinitic clay, okra mucilage, and plant ashes. Yield stress enhances cuttings transport, while shear‐thinning behavior reduces pressure losses and pumping energy.
Stanislas Ulrich Berry Moukila
wiley   +1 more source

Introducing the Coincidence Index: A Novel Diagnostic and Production‐Based Framework for Water Body Interaction Analysis and Its Application to Study the Interaction of River Plumes

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract Quantifying interactions between distinct water bodies is critical yet challenging for understanding ocean and estuarine dynamics. We introduce the coincidence index (CI), defined as the product of two arbitrary tracers (a $a$, b $b$), to diagnose where two water masses coexist and mix.
Xiangyu Li   +2 more
wiley   +1 more source

High order weighted essentially nonoscillatory WENO-eta schemes for hyperbolic conservation laws [PDF]

open access: yes, 2014
In [8], the authors have designed a new fifth-order WENO finite-difference scheme (named WENO-eta) by introducing a new local smoothness indicator which is defined based on the Lagrangian interpolation polynomials and has a more succinct form compared ...
Fan P   +1 more
core   +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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