A class of high-order improved fast weighted essentially non-oscillatory schemes for achieving optimal order at any critical points

X Zhang, L Huang, Z Jiang, C Yan - Physics of Fluids, 2022 - pubs.aip.org
The weighted essentially non-oscillatory (WENO) scheme is one of the most popular shock-
capturing schemes, and constructing a more efficient and higher-order WENO scheme has …

Deep smoothness WENO scheme for two-dimensional hyperbolic conservation laws: A deep learning approach for learning smoothness indicators

T Kossaczká, AD Jagtap, M Ehrhardt - arXiv preprint arXiv:2309.10117, 2023 - arxiv.org
In this paper, we introduce an improved version of the fifth-order weighted essentially non-
oscillatory (WENO) shock-capturing scheme by incorporating deep learning techniques. The …

An efficient smoothness indicator mapped WENO scheme for hyperbolic conservation laws

X Zhang, C Yan, F Qu - Computers & Fluids, 2022 - Elsevier
The mapping function method is a common approach to improve the accuracy of WENO type
schemes. However, with the demand of the accuracy improvement higher, the mapping …

Multi-level WENO schemes with an adaptive characteristic-wise reconstruction for system of Euler equations

R Kumar, P Chandrashekar - Computers & Fluids, 2022 - Elsevier
Abstract The Weighted Essentially Non-Oscillatory (WENO) scheme is an accurate and
robust reconstruction procedure to simulate compressible flows, especially in the presence …

Deep smoothness weighted essentially non-oscillatory method for two-dimensional hyperbolic conservation laws: A deep learning approach for learning smoothness …

T Kossaczká, AD Jagtap, M Ehrhardt - Physics of Fluids, 2024 - pubs.aip.org
In this work, we enhance the fifth-order Weighted Essentially Non-Oscillatory (WENO) shock-
capturing scheme by integrating deep learning techniques. We improve the established …

A Hybrid Multilayer Perceptron-Radial Basis Function (HMLP-RBF) Neural Network for Solving Hyperbolic Conservation Laws

Y Xiao, L Yang, H Yuan, C Shu - SN Computer Science, 2022 - Springer
This paper combines the multilayer perceptron (MLP) and the radial basis function (RBF)
neural networks to design a hybrid multilayer perceptron-radial basis function (HMLP-RBF) …

A new fifth order finite difference WENO scheme to improve convergence rate at critical points

A Kumar, B Kaur, R Kumar - Wave Motion, 2022 - Elsevier
In the present work, we construct a new, improved version of fifth-order finite-difference
Weighted Essentially Non-Oscillatory (WENO) scheme with less dissipation to approximate …

WENO smoothness indicator based troubled‐cell indicator for hyperbolic conservation laws

KR Arun, AK Dond, R Kumar - International Journal for …, 2024 - Wiley Online Library
Hybrid algorithms are an efficient and popular choice for computing the solutions of
hyperbolic conservation laws. In general, hybrid algorithms involve low‐cost high‐order …

Finite difference modified WENO schemes for hyperbolic conservation laws with non‐convex flux

AK Dond, R Kumar - … Journal for Numerical Methods in Fluids, 2021 - Wiley Online Library
Abstract The Weighted Essentially Non‐Oscillatory (WENO) reconstruction provides higher‐
order accurate solutions to hyperbolic conservation laws for convex flux. But it fails to …

Hybrid Cbsqi-Weno Schemes for Convection Diffusion Problems

PK Barik, A Dond, K Rakesh, A Hasan - Kumar and Hasan, Amjad, Hybrid … - papers.ssrn.com
Abstract The B-spline Quasi-Interpolation (BSQI) based numerical scheme is a successful
method for obtaining the solution to partial differential equations under sufficient regularity …