Results 61 to 70 of about 2,892 (210)

A WENO Finite‐Volume Scheme for the Evolution of Potential Vorticity in Isopycnal Ocean Models

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 7, July 2026.
Abstract Ocean circulations are strongly constrained by rotation and stratification, making potential vorticity (PV) a key dynamical property. Specifically, PV is conserved following water parcels in the absence of diabatic forcing and friction—a desirable feature for isopycnal ocean models.
Wenda Zhang, Yi‐Hung Kuo, Simone Silvestri, Alistair Adcroft, Robert Hallberg, Stephen M. Griffies   +5 more
wiley   +1 more source

An improved unstructured WENO method for compressible multi-fluids flow

, 2016
An improved high-order accurate WENO finite volume method based on unstructured grids for compressible multi-fluids flow is proposed in this paper.
Zheng, HW (reprint author), Chinese Acad Sci, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China., Zheng HW(郑洪伟), Zhao WG(赵文赓)   +2 more
core   +1 more source

Bayesian Calibration of a Large‐Eddy Resolving Model Towards Campaign Measurements With an Ensemble Kalman Smoother

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 7, July 2026.
Abstract Large‐eddy simulations (LES) are commonly employed to study small‐scale weather phenomena and to validate coarser models. Like larger‐scale weather and climate models, they contain weakly constrained parameters and use physical inputs with associated uncertainties, such as initial conditions or forcing. This study assesses the viability of the
D. Grund, S. Schemm
wiley   +1 more source

A new weighting method for improving the WENO-Z scheme

, 2018
The calculation of the weight of each substencil is very important for a weighted essentially nonoscillatory (WENO) scheme to obtain high-order accuracy in smooth regions and keep the essentially nonoscillatory property near discontinuities.
申义庆, Yu M, Zeng FJ, 刘升平
core   +1 more source

Efficient WENO Schemes for Nonuniform Grids

Journal of Scientific Computing
AbstractA set of arbitrarily high-order WENO schemes for reconstructions on nonuniform grids is presented. These non-linear interpolation methods use simple smoothness indicators with a linear cost with respect to the order, making them easy to implement and computationally efficient.
Marti Raga, Maria del Carmen, Mulet, Pep, Yáñez, Dionisio F., Zorío, David   +3 more
openaire   +4 more sources

Formation and Arrest of a Surface Density Front via Strain‐Driven Frontogenesis

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Ocean fronts play a key role in the vertical transport of heat, energy and biogeochemical tracers, but their behavior and life cycle is not well‐understood, especially at smaller scales. We present a large‐eddy simulation of mixed layer frontogenesis capturing the onset of a submesoscale regime from a larger scale, rotation‐dominated front ...
Erin Atkinson, Nicolas Grisouard
wiley   +1 more source

DJ4Earth: Differentiable, and Performance‐Portable Earth System Modeling via Program Transformations

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 5, May 2026.
Abstract Differentiable Earth system models (ESMs) enable powerful applications such as sensitivity analysis, gradient‐based calibration, state estimation, boundary flux inversions, uncertainty quantification, and online machine learning. Reverse‐mode automatic differentiation (AD) efficiently provides gradients for such tasks, yet models have rarely ...
William S. Moses, Gong Cheng, Valentin Churavy, Maximilian Gelbrecht, Milan Klöwer, Joseph Kump, Mathieu Morlighem, Sarah Williamson, Dhruv Apte, Paul Berg, Mosè Giordano, Christopher Hill, Nora Loose, Alexis Montoison, Sri Hari Krishna Narayanan, Avik Pal, Michel Schanen, Simone Silvestri, Greg Wagner, Patrick Heimbach   +19 more
wiley   +1 more source

Application of a Novel High-Order WENO Scheme in LES Simulations

Applied Sciences
To achieve high-fidelity large eddy simulation (LES) predictions of complex flows while keeping computational costs manageable, this study integrates a high-order WENO-ZQ scheme into the LES framework.
Shuo Zhang, Dongdong Zhong, Hao Wang, Xingshuang Wu, Ning Ge   +4 more
doaj   +1 more source

Modelling chemical advection during magma ascent [PDF]

Geoscientific Model Development
Modelling magma transport requires robust numerical schemes for chemical advection. Current numerical schemes vary in their ability to be mass conservative, computationally efficient, and accurate.
H. Dominguez, N. Riel, P. Lanari, P. Lanari   +3 more
doaj   +1 more source

Particle Size Effects on Dynamic Behavior of Heated Spheroidal Particles in Shear Flow

Chemical Engineering &Technology, Volume 49, Issue 3, March 2026.
Understanding the dynamics of nonspherical particles in shear‐driven flows is essential for a wide range of engineering applications. This study examines how confinement ratio, thermal effects, and interparticle interactions influence the migration, equilibrium positions, and rotation of nonspherical particles in such flows.
Farshad Gharibi, Dominique Thévenin
wiley   +1 more source