A novel and robust scale-invariant WENO scheme for hyperbolic conservation laws

WS Don, R Li, BS Wang, Y Wang - Journal of Computational Physics, 2022 - Elsevier
A novel, simple, robust, and effective modification in the nonlinear weights of the scale-
invariant WENO operator is proposed that achieves an optimal order of accuracy with …

Fifth order AWENO finite difference scheme with adaptive numerical diffusion for Euler equations

Y Wang, WS Don, BS Wang - Computers & Fluids, 2023 - Elsevier
In solving hyperbolic conservation laws using the fifth-order characteristic-wise alternative
WENO finite-difference scheme (AWENO) with Z-type affine-invariant nonlinear Ai-weights …

Simple smoothness indicator WENO-Z scheme for hyperbolic conservation laws

S Rathan, NR Gande, AA Bhise - Applied Numerical Mathematics, 2020 - Elsevier
The advantage of WENO-JS scheme (1996)[22] over the WENO-LOC scheme (1994)[27] is
that the WENO-LOC non-linear weights do not achieve the desired order of convergence in …

A novel high efficiency adaptive mapped WENO scheme

S Tang, M Li - Computers & Mathematics with Applications, 2022 - Elsevier
The WENO-AIM proposed by Vevek et al.[22] can achieve the optimal order for the critical
point, and the complex structure of the mapping function of WENO-AIM will substantially …

Affine-invariant WENO weights and operator

BS Wang, WS Don - Applied Numerical Mathematics, 2022 - Elsevier
The novel and simple nonlinear affine-invariant weights (Ai-weights) are devised for the Ai-
WENO operator to handle the case when the function being reconstructed undergoes an …

An improved fifth-order WENO scheme with symmetry-preserving smoothness indicators for hyperbolic conservation laws

W Zhong, S Wang, J Qiu, J Gao - Journal of Computational Physics, 2023 - Elsevier
Abstract Ha et al.[1] have constructed a novel set of smoothness indicators by using the L 1-
norm measure and introducing a user-tunable parameter to propose a new WENO scheme …

Improvements of the fifth-order WENO-JS-type scheme with normalized smoothing factor for gas dynamic Euler equations

S Tang - Applied Numerical Mathematics, 2023 - Elsevier
In this paper, we developed a novel high-resolution fifth-order WENO-JS-type scheme that
can achieve the optimal accuracy order at or near the arbitrary order critical points. To …

A novel finite-difference converged ENO scheme for steady-state simulations of Euler equations

T Liang, L Fu - Journal of Computational Physics, 2024 - Elsevier
The high-order shock-capturing scheme is critical for compressible fluid simulations, in
particular for cases where strong shockwaves are present. However, for the steady-state …

Nonlinear weights for shock capturing schemes with unconditionally optimal high order

Y Chen, X Deng - Journal of Computational Physics, 2023 - Elsevier
We develop in this paper nonlinear weights for shock capturing schemes, such that the
design optimal high order is achieved regardless of any order of the critical point. In …

A high-efficiency adaptive TENO scheme with optimal accuracy order for compressible flow simulation

S Tang - Computer Physics Communications, 2024 - Elsevier
In this paper, we propose a new adaptive cut-off function and develop a fifth-order targeted
ENO scheme that achieves optimal accuracy at any order of critical points, which performs …