Results 51 to 60 of about 2,892 (210)

Curvilinear grids for WENO methods in astrophysical simulations [PDF]

Computer Physics Communications, 2014
We investigate the applicability of curvilinear grids in the context of astrophysical simulations and WENO schemes. With the non-smooth mapping functions from Calhoun et al. (2008), we can tackle many astrophysical problems which were out of scope with the standard grids in numerical astrophysics.
Hannes Grimm-Strele, Friedrich Kupka, Herbert J. Muthsam   +2 more
openaire   +6 more sources

On the Tropical Nature of an Intense Mediterranean Cyclone in the Ocean‐Atmosphere System

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract The Mediterranean basin hosts a large number of cyclones every year. Among them, some rare cases named medicanes present similarities with tropical cyclones but their dynamical characteristics are debated. The ocean‐atmosphere dynamics of Medicane Ianos (2020) are studied here through km‐scale fully coupled ocean‐wave‐atmosphere simulations ...
Sophia E. Brumer, Florian Pantillon, Joris Pianezze, Yann Le Péru‐Morvan, Matis Ragu‐Fonta, Loly Grand, Antonio Ricchi, Alexandre Barboni, Marie‐Noëlle Bouin   +8 more
wiley   +1 more source

Numerical study of hybrid third order compact scheme for hyperbolic conservation laws

Energy Reports, 2020
In this paper, we present a numerical study to study the capability of the radius of curvature to detect the discontinuous point for hybrid high order schemes.
Indra Wibisono, Yanuar, E.A. Kosasih
doaj   +1 more source

The Structure and Lifecycle of Stratified Mixing by Shear Instabilities in Continuously Forced Flows

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract The turbulent energy cascade of ocean mixing remains poorly understood at geophysically large Reynolds numbers (Re $\mathrm{R}\mathrm{e}$). Here we propose a new conceptual model for the structure of small‐scale mixing grounded in high‐resolution multibeam echosounding observations from the mouth of the Connecticut River, a shallow salt‐wedge ...
Adrien Lefauve, C. Bassett, D. S. Plotnick, A. C. Lavery, W. R. Geyer   +4 more
wiley   +1 more source

Enhancing the Resolution of Blade Tip Vortices in Hover with High-Order WENO Scheme and Hybrid RANS–LES Methods

Aerospace, 2023
The accurate prediction of blade tip vortices continues to be challenging for the investigation of rotor aerodynamics. In the current work, the blade tip vortex system of a Caradonna–Tung rotor in the hovering state is simulated on account of the ...
Wenbo Shi, Heng Zhang, Yuanxiang Li
doaj   +1 more source

Review on non-polynomial high-order accuracy nonlinear weighted schemes

Kongqi donglixue xuebao
In comparison to linear schemes, the nonlinear errors inherent in polynomial-based high-order nonlinear weighted schemes significantly affect the resolution when solving weak solutions of hyperbolic conservation laws. To mitigate this impact, researchers
Haomin Li, Meiliang Mao, Jinwei Bai, Weizhong Dong, Huajun Zhu   +4 more
doaj   +1 more source

A High–Order WENO Scheme Based on Different Numerical Fluxes for the Savage–Hutter Equations

Mathematics, 2022
The study of rapid free surface granular avalanche flows has attracted much attention in recent years, which is widely modeled using the Savage–Hutter equations. The model is closely related to shallow water equations.
Min Wang, Xiaohua Zhang
doaj   +1 more source

How Does Ice Shell Geometry Shape Ocean Dynamics on Icy Moons?

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract A poleward‐thinning ice shell can drive circulation in the subsurface oceans of icy moons by imposing a meridional temperature gradient–colder at the equator than the pole–through the freezing point suppression due to pressure. This temperature gradient sets a buoyancy gradient, whose sign depends on the thermal expansion coefficient ...
Yixiao Zhang, Wanying Kang, John Marshall   +2 more
wiley   +1 more source

Preconditioned Jacobian-free Newton–Krylov fully implicit high order WENO schemes and flux limiter methods for two-phase flow models

Nuclear Engineering and Technology, 2022
Motivated by the high-resolution properties of high-order Weighted Essentially Non-Oscillatory (WENO) and flux limiter (FL) for steep-gradient problems and the robust convergence of Jacobian-free Newton-Krylov (JFNK) methods for nonlinear systems, the ...
Xiafeng Zhou, Changming Zhong, Zhongchun Li, Fu Li   +3 more
doaj   +1 more source

WENO Reconstructions of Unconditionally Optimal High Order

SIAM Journal on Numerical Analysis, 2019
A modified Weighted Essentially Non-Oscillatory (WENO) reconstruction technique preventing accuracy loss near critical points (regardless of their order) of the underlying data is presented. This approach only uses local data from the reconstruction stencil and does not rely on any sort of scaling parameters. The key novel ingredient is a weight design
Antonio Baeza, Raimund Bürger, Pep Mulet, David Zorío   +3 more
openaire   +5 more sources