Results 91 to 100 of about 2,892 (210)

An Adaptive WENO Collocation Method for Differential Equations with Random Coefficients

open access: yesMathematics, 2016
The stochastic collocation method for solving differential equations with random inputs has gained lots of popularity in many applications, since such a scheme exhibits exponential convergence with smooth solutions in the random space.
Wei Guo   +3 more
doaj   +1 more source

Accuracy of MUSCL and WENO Schemes on Non-Uniform Structured Meshes

open access: yes气体物理
The difference schemes constructed on the basis of one-dimensional uniform grids must be extended to non-uniform or curvilinear grids in practical applications, and the coordinate transformation process introduces geometry-induced errors. The accuracy of
Jun LIU, Yu LIU
doaj   +1 more source

An alternative reconstruction for WENO schemes with adaptive order

open access: yesCoRR, 2021
We propose an alternative reconstruction for weighted essentially non-oscillatory schemes with adaptive order (WENO-AO) for solving hyperbolic conservation laws. The alternative reconstruction has a more concise form than the original WENO-AO reconstruction. Moreover, it is a strictly convex combination of polynomials with unequal degrees.
openaire   +2 more sources

Hermite WENO schemes for Hamilton-Jacobi equations [PDF]

open access: yes, 2005
In this paper, a class of weighted essentially non-oscillatory (WENO) schemes based on Hermite polynomials, termed HWENO (Hermite WENO) schemes, for solving Hamilton-Jacobi equations is presented. The idea of the reconstruction in the HWENO schemes comes
邱建贤, Qiu, JX, Shu, CW
core  

STENCIL-NET for equation-free forecasting from data. [PDF]

open access: yesSci Rep, 2023
Maddu S   +4 more
europepmc   +1 more source

Symmetry-preserving WENO limiters

open access: yes, 2019
Weighted essentially non-oscillatory (WENO) reconstruction schemes are presented that preserve cylindrical symmetry for radial flows on an equal-angle polar mesh. These new WENO schemes are used with a Lagrangian discontinuous Galerkin (DG) hydrodynamic method.
Liu, Xiaodong   +2 more
openaire   +2 more sources

A modified fifth-order WENO scheme for hyperbolic conservation laws [PDF]

open access: yes, 2016
This paper deals with a new fifth-order weighted essentially non-oscillatory (WENO) scheme improving the WENO-NS and WENO-P methods which are introduced in Ha et al. J. Comput. Phys. (2013) and Kim et al., J. Sci. Comput. (2016) respectively.
Rathan, Samala, Raju, G Naga
core   +1 more source

Optimized Weighted Essentially Nonoscillatory Third-Order Schemes for Hyperbolic Conservation Laws

open access: yesJournal of Applied Mathematics, 2013
We describe briefly how a third-order Weighted Essentially Nonoscillatory (WENO) scheme is derived by coupling a WENO spatial discretization scheme with a temporal integration scheme. The scheme is termed WENO3.
A. R. Appadu, A. A. I. Peer
doaj   +1 more source

A New Type of High-Order Mapped Unequal-Sized WENO Scheme for Nonlinear Degenerate Parabolic Equations

open access: yesComputation
In this paper, we propose the MUSWENO scheme, a novel mapped weighted essentially non-oscillatory (WENO) method that employs unequal-sized stencils, for solving nonlinear degenerate parabolic equations.
Zhengwei Hou, Liang Li
doaj   +1 more source

WENO-Z scheme with new nonlinear weights for Hamilton-Jacobi equations and adaptive approximation

open access: yes
summary:A new fifth-order weighted essentially nonoscillatory (WENO) scheme is designed to approximate Hamilton-Jacobi equations. As employing a fifth-order linear approximation and three third-order ones on the same six-point stencil as before, a newly ...
Han, Wonho, Kim, Kwangil, Ri, Kwanhung
core   +1 more source

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