Results 81 to 90 of about 2,892 (210)
Dynamics of Downdrafts Around a Growing Convective Cloud: A Numerical Study
Journal of Geophysical Research: Atmospheres, Volume 130, Issue 22, 28 November 2025.Abstract We examine the dynamics of cloud‐edge downdrafts over the growth phase of isolated cumuli, combining Eulerian and Lagrangian analyses. As in previous studies, our results show that growing cumuli are surrounded by downdrafts linked to cloud‐scale quasi‐toroidal circulations at all times at middle and upper cloud levels consistent with the ...
Lianet Hernández Pardo +2 more
wiley +1 more source
ERF: Energy Research and Forecasting Model
Journal of Advances in Modeling Earth Systems, Volume 17, Issue 11, November 2025.Abstract High performance computing (HPC) architectures have undergone rapid development in recent years. As a result, established software suites face an ever increasing challenge to remain performant on and portable across modern systems. Many of the widely adopted atmospheric modeling codes cannot fully (or in some cases, at all) leverage the ...
Aaron Lattanzi +10 more
wiley +1 more source
A reconstructed discontinuous Galerkin method based on a Hierarchical WENO reconstruction for compressible flows on tetrahedral grids [PDF]
, 2013 A reconstructed discontinuous Galerkin (RDG) method based on a hierarchical WENO reconstruction, termed HWENO (P1P2) in this paper, designed not only to enhance the accuracy of discontinuous Galerkin methods but also to ensure the nonlinear stability of ...
Nourgaliev R +5 more
core +1 more source
AerospaceIn this paper, the detached eddy simulation (DES) method is used to calculate the aerodynamic characteristics of NACA0015 airfoil by combining the Riemann approximate solution HLLC (Harten–Lax–van Leer Contact) with the high-order weighted essentially ...
Yan Qi, Bowen Zhong, Song Zou
doaj +1 more source
Journal of Geophysical Research: Earth Surface, Volume 130, Issue 11, November 2025.Abstract Seagrass meadows fulfill many essential ecological functions, of which an important one is to stabilize sediment. Therefore, they are perceived as a nature‐based addition or alternative to conventional rigid coastal protection. The impact of seagrass meadows depends on their morphology, such as canopy height, shoot density, and spatial extent.
V. Mohr, W. Zhang, T. Dolch, C. Schrum
wiley +1 more source
Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.Abstract Large‐eddy simulation (LES) has been an indispensable modeling tool for the study of shallow cumulus (ShCu) clouds. However, a recent study uncovered omnipresent spurious pressure waves around simulated ShCu clouds by three compressible community LES models, suggesting a potentially common issue.
Yi Lin, Bowen Zhou
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The Finite Volume WENO with Lax–Wendroff Scheme for Nonlinear System of Euler Equations
Mathematics, 2018 We develop a Lax–Wendroff scheme on time discretization procedure for finite volume weighted essentially non-oscillatory schemes, which is used to simulate hyperbolic conservation law.
Haoyu Dong, Changna Lu, Hongwei Yang
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High-order weno-θ6 finite volume method for two-dimensional compressible euler equations
Tạp chí Khoa học và Công nghệA high-order finite-volume WENO-θ6 method is proposed for two-dimensional compressible Euler equations. The method employs θ-adaptive weighting to combine fifth-order upwind and sixth-order central reconstructions based on local smoothness indicators ...
Nguyen Minh Hieu Pham, Thien Binh Nguyen
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, 2016 数值计算及分析表明,五阶WENO-Z格式要满足极值点五阶精度的条件时会在间断处会带来较大的耗散。针对以上问题,本文从以下两个方面进行了改进,发展的新格式避免了以上问题。首先,以WENO-Z格式的全局模板光滑因子τ为基础,提出了一个更高阶的全局光滑因子,用于提高WENO-Z格式的极值点精度;然后,以此为基础重新设计了WENO-Z格式的权重计算方案,用于提高其在光滑区域的计算精度及间断区域的鲁棒性。本文的数值结果表明:发展的新格式不仅在极值点附近能获得五阶精度,而且在间断处具有很好的鲁棒性 ...
申义庆, 刘升平
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Relationship Between Structured Mesh Quality and Error of Difference Scheme
气体物理The human resources and work time required for mesh generation are relatively high in the overall numerical simulation cycle of a flow field and represent a bottleneck in computational fluid dynamics applications.
Jun LIU, Yu LIU
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