Results 11 to 20 of about 1,374,010 (208)
WENO Scheme Based on Lax-Wendroff Time Discretization to Solving Hyperbolic Conservation Laws
Journal of Harbin University of Science and Technology, 2017 The research of high accuracy and high resolution schemes have been a hot topic in computational mathematics． According to low resolution and large amount of calculation of the original WENO-JS scheme，we propose a simple new limiter fifth order upwind ...
LI Xing-hua, SUN Yang, AI Xiao-hui
doaj +2 more sources
Zhongguo Jianchuan Yanjiu, 2018 [Objectives] In this paper, an improved third-order WENO scheme named ‘WENO-N+3’ is constructed by adding a suitable term to the weights of the conventional WENO-N3 scheme.
XU Weizheng, WU Weiguo
doaj +2 more sources
New Constructing Method for WENO Schemes
Procedia Engineering, 2013 AbstractA new method for constructing weighted essentially non-oscillatory (WENO) scheme is proposed. The idea of this method is to combine Henrick's mapping function and the idea of improving the accuracy of WENO-Z scheme one-by-one order. The particular advantage of the new constructing method is that it can improve the accuracy of WENO scheme near ...
Shen, Y.Q., Liu, L., Yang, Y., Gao, Z.
core +4 more sources
AIP Advances, 2022 In the present study, a high-order high-resolution energy stable weighted essentially non-oscillatory plus (ESWENO-P) scheme was developed by improving the weighting function in the energy stable weighted essentially non-oscillatory (ESWENO) scheme ...
S. H. Park, O. J. Kwon, S. Lee
doaj +2 more sources
Application of a Novel High-Order WENO Scheme in LES Simulations
Applied SciencesTo achieve high-fidelity large eddy simulation (LES) predictions of complex flows while keeping computational costs manageable, this study integrates a high-order WENO-ZQ scheme into the LES framework.
Shuo Zhang +4 more
doaj +2 more sources
Tensor-train WENO scheme for compressible flows [PDF]
Journal of Computational PhysicsIn this study, we introduce a tensor-train (TT) finite difference WENO method for solving compressible Euler equations. In a step-by-step manner, the tensorization of the governing equations is demonstrated. We also introduce \emph{LF-cross} and \emph{WENO-cross} methods to compute numerical fluxes and the WENO reconstruction using the cross ...
M. Engin Danis +5 more
openaire +5 more sources
Embedded WENO : a design method to improve existing WENO schemes [PDF]
, 2015 Embedded WENO methods utilize all adjacent smooth substencils to construct a desirable interpolation. Conventional WENO schemes underuse this possibility close to large gradients or discontinuities. Embedded methods based on the WENO schemes of Jiang and Shu [1] and on the WENO-Z scheme of Borges et al. [2] are explicitly constructed.
Lith, van, B.S. +2 more
openaire +2 more sources
New More Efficient A-WENO Schemes
Journal of Scientific Computing, 2023 We develop new more efficient A-WENO schemes for both hyperbolic systems of conservation laws and nonconservative hyperbolic systems. The new schemes are a very simple modification of the existing A-WENO schemes: They are obtained by a more efficient evaluation of the high-order correction terms.
Shaoshuai Chu +2 more
openaire +5 more sources
Sinogram-based flow estimation in computed tomography using a physics-informed neural network: Impact of gantry rotation speed, X-ray fluence and pulsed acquisition on accuracy. [PDF]
Med PhysAbstract Background Non‐invasive imaging‐based assessment of blood flow plays a critical role in evaluating heart function and structure. Computed Tomography (CT) is a widely‐used imaging modality that can robustly evaluate cardiovascular anatomy and function, but direct methods to estimate blood flow velocity from movies of contrast dynamics have not ...
Guo J +4 more
europepmc +2 more sources
Computers & Fluids, 2018 This work is dedicated to the development and comparison of WENO-type reconstructions for hyperbolic systems of balance laws. We are particularly interested in high order shock capturing non-oscillatory schemes with uniform accuracy within each cell and low spurious effects.
I. Cravero +3 more
openaire +5 more sources