Results 71 to 80 of about 2,892 (210)

High-order methods on mixed-element unstructured meshes for aeronautical applications [PDF]

, 2012
Higher resolution and reliability are the desiderata for Computational Fluid Dynamics and main drivers for the development, implementation and validation of highorder accurate methods.
Antoniadis, Antonis F.
core   +2 more sources

Application of a Novel Weighted Essentially Non-Oscillatory Scheme for Reynolds-Averaged Stress Model and Reynolds-Averaged Stress Model/Large Eddy Simulation (RANS/LES) Coupled Simulations in Turbomachinery Flows

Applied Sciences
In numerical simulations, achieving high accuracy without significantly increasing computational cost is often a challenge. To address this issue, this paper proposes an improved finite volume Weighted Essentially Non-Oscillatory (WENO) scheme for ...
Hao Wang, Dongdong Zhong, Shuo Zhang, Xingshuang Wu, Ning Ge   +4 more
doaj   +1 more source

On the eigenvalues of the ADER-WENO Galerkin predictor

Journal of Computational Physics, 2017
ADER-WENO methods have proved extremely useful in obtaining arbitrarily high-order solutions to problems involving hyperbolic systems of PDEs. For example, it has been demonstrated that for the same computational cost as a Runge-Kutta scheme of a certain order, one can obtain an ADER scheme of one higher order of accuracy.
openaire   +4 more sources

Energetics of the Upper‐Ocean Under Sea Ice: Frictional Dissipation Versus Baroclinic Production

Journal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract In polar regions, the presence of sea ice is known to reduce the ocean's eddy kinetic energy (EKE) by enhancing frictional dissipation at the surface. Here, using a coupled ocean—sea ice model, we discuss a mechanism that can instead increase EKE generation under sea ice and, in our simulations, compensates surface dissipation by 69% to 30 ...
Mukund Gupta, Andrew F. Thompson, Patrice Klein   +2 more
wiley   +1 more source

A WENO-Based Upwind Rotated Lattice Boltzmann Flux Solver with Lower Numerical Dissipation for Simulating Compressible Flows with Contact Discontinuities and Strong Shock Waves

Applied Sciences
This paper presents a WENO-based upwind rotated lattice Boltzmann flux solver (WENO-URLBFS) in the finite difference framework for simulating compressible flows with contact discontinuities and strong shock waves.
Yunhao Wang, Jiabao Chen, Yan Wang, Yuhang Zeng, Shitang Ke   +4 more
doaj   +1 more source

WENO SCHEMES FOR SOLUTION OF UNSTEADY ONE-DIMENSIONAL GAS DYNAMICS TEST PROBLEMS [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2016
Creation of test solutions is an essential element in the general design contents for numerical methods aimed at integration of Euler equations. We consider numerical solution of Euler equations describing flows of inviscid compressible gas and allowing ...
P. V. Bulat, K. N. Volkov
doaj   +1 more source

A Data Library of Liquid Clouds Modelled With a Large Eddy Simulation Framework

Geoscience Data Journal, Volume 13, Issue 1, January 2026.
Clouds from four global liquid cloud testbed regions are modelled using atmospheric large eddy simulations coupled to a detailed scheme for cloud microphysics, offering data suitable for examining interactions among cloud, aerosol and turbulence in warm, boundary‐layer clouds and for developing parameterizations for coarser‐scale models.
Colleen M. Kaul, Po‐Lun Ma, Kyle G. Pressel, Jacob Shpund, Shuaiqi Tang, Mikhail Ovchinnikov, Meng Huang, Jerome Fast, Xiaojian Zheng, Xiquan Dong   +9 more
wiley   +1 more source

On the Stability Barrier of Hermite Type Discretizations of Advection Equations

Numerical Methods for Partial Differential Equations, Volume 42, Issue 1, January 2026.
ABSTRACT We establish a stability barrier for a class of high‐order Hermite‐type discretization of 1D advection equations underlying the hybrid‐variable (HV) and active flux (AF) methods. These methods approximate both cell averages and nodal solutions and evolve them in time simultaneously.
Xianyi Zeng
wiley   +1 more source

ONE-DIMENSIONAL GAS DYNAMICS PROBLEMS AND THEIR SOLUTION BASED ON HIGH-RESOLUTION FINITE DIFFERENCE SCHEMES [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2015
One-dimensional unsteady gas dynamics problems are revealing tests for the accuracy estimation of numerical solution with respect to simulation of supersonic flows of inviscid compressible gas.
P. V. Bulat, K. N. Volkov
doaj   +1 more source

A Direct Assessment of Langmuir Turbulence Parameterizations in Idealized Coastal Merging Boundary Layers

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 1, January 2026.
Abstract Langmuir turbulence affects turbulent mixing in the ocean boundary layers and its effects require parameterizations in ocean circulation models. Most existing Langmuir turbulence parameterizations focus on the surface boundary layer in open oceans.
Zheng Wei, Qing Li, Bicheng Chen
wiley   +1 more source