Results 71 to 80 of about 4,064 (207)
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
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, 2022 研究高精度和高分辨率的差分格式对于复杂流场的数值模拟有重要意义。为了克服WENO-JS格式和WENO- Z在通量函数的一阶和二阶极值点处降阶的缺陷,基于重构权重系数的思想,设计一族映射函数并应用到五阶WENO格式中。近似色散关系表明,WENO-Pe的色散误差和数值耗散均小于WENO-JS、WENO-Z以及其他基于映射函数的WENO格式。新格式与其他格式数值模拟变形的高斯波问题,Sod激波管、Lax激波管、激波密度干扰问题等一维算例,Riemann问题、Rayleigh-Taylor不稳定性问题 ...
程启豪 +4 more
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Applied SciencesIn 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 +4 more
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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
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Applied SciencesThis 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 +4 more
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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.
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Adaptive Order WENO Reconstruction Based On Radial Basis Function
, 2020 Weighted Essentially Non-Oscillatory (WENO) reconstruction based on radial basis function (RBF), which is used to solve hyperbolic conservation laws. In this paper, we focus on its numerical analysis, it mainly deals with functions with discontinuities ...
Kuo, Ming-Hsien
core
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
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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 +19 more
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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
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