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High-Resolution Multi-scale Modeling Frameworks (HR) -- global climate models that embed separate, convection-resolving models with high enough resolution to resolve boundary layer eddies -- have exciting potential for investigating low…

A practical application of universal wall scalings is near-wall turbulence modeling. In this paper, we exploit temperature's semi-local scaling [Patel, Boersma, and Pecnik, {Scalar statistics in variable property turbulent channel flows},…

流体动力学 · 物理学 2021-05-27 Peng E. S. Chen , Yu Lv , Haosen H. A. Xu , Yipeng Shi , Xiang I. A. Yang

Cloud-related parameterizations remain a leading source of uncertainty in climate projections. Although machine learning holds promise for Earth system models (ESMs), many data-driven parameterizations lack interpretability, physical…

大气与海洋物理 · 物理学 2025-11-25 Arthur Grundner , Tom Beucler , Julien Savre , Axel Lauer , Manuel Schlund , Veronika Eyring

Observational studies of a planetary boundary layer (PBL) are difficult. Ground-born measurements usually characterize only a small portion of the PBL immediately above the surface. Air-born measurements cannot be obtained close to the…

大气与海洋物理 · 物理学 2010-11-09 Igor Esau

We examine and benchmark the emerging idea of applying the large-eddy simulation (LES) formalism to unconventionally coarse grids where RANS would be considered more appropriate at first glance. We distinguish this idea from…

流体动力学 · 物理学 2023-10-17 Yuanwei Bin , George I. Park , Yu Lv , Xiang I. A. Yang

Recent advancements in Large Language Models have inspired the development of foundation models across various domains. In this study, we evaluate the efficacy of Large EEG Models (LEMs) by fine-tuning LaBraM, a state-of-the-art foundation…

机器学习 · 计算机科学 2025-05-30 Siwen Wang , Shitou Zhang , Wan-Lin Chen , Dung Truong , Tzyy-Ping Jung

Clouds play a key role in regulating climate change but are difficult to simulate within Earth system models (ESMs). Improving the representation of clouds is one of the key tasks towards more robust climate change projections. This study…

大气与海洋物理 · 物理学 2024-10-28 A. Kaps , A. Lauer , G. Camps-Valls , P. Gentine , L. Gómez-Chova , V. Eyring

The concept of multi-access edge computing (MEC) has been recently introduced to supplement cloud computing by deploying MEC servers to the network edge so as to reduce the network delay and alleviate the load on cloud data centers.…

网络与互联网体系结构 · 计算机科学 2018-04-02 Anselme Ndikumana , Nguyen H. Tran , Tai Manh Ho , Zhu Han , Walid Saad , Dusit Niyato , Choong Seon Hong

We present a Large Eddy Simulation (LES) approach based on a nonlinear differential low-pass filter for the simulation of two-dimensional barotropic flows with under-refined meshes. For the implementation of such model, we choose a…

数值分析 · 数学 2022-02-02 Michele Girfoglio , Annalisa Quaini , Gianluigi Rozza

As repositories of large scale data in earth observation (EO) have grown, so have transfer and storage costs for model training and inference, expending significant resources. We introduce Neural Embedding Compression (NEC), based on the…

机器学习 · 计算机科学 2024-07-11 Carlos Gomes , Thomas Brunschwiler

AI inference at the edge is becoming increasingly common for low-latency services. However, edge environments are power- and resource-constrained, and susceptible to failures. Conventional failure resilience approaches, such as cloud…

The present study is concerned with large-eddy simulations (LES) of supersonic jet flows. The work addresses, in particular, the simulation of a perfectly expanded free jet flow with an exit Mach number of 1.4 and an exit temperature equal…

流体动力学 · 物理学 2023-01-05 D. F. Abreu , C. Junqueira-Junior , E. T. Dauricio , J. L. F. Azevedo

Computing demands for large scientific experiments, such as the CMS experiment at the CERN LHC, will increase dramatically in the next decades. To complement the future performance increases of software running on central processing units…

仪器与探测器 · 物理学 2024-09-09 CMS Collaboration

In this paper, we propose a new end-to-end methodology to optimize the energy performance and the comfort, air quality and hygiene of large buildings. A metamodel based on a Transformer network is introduced and trained using a dataset…

信号处理 · 电气工程与系统科学 2020-06-23 Max Cohen , Maurice Charbit , Sylvain Le Corff , Marius Preda , Gilles Nozière

A new theoretical method is presented for future multi-scale aerodynamic optimisation of very large wind farms. The new method combines a recent two-scale coupled momentum analysis of ideal wind turbine arrays with the classical…

流体动力学 · 物理学 2018-11-20 Takafumi Nishino , William Hunter

In recent years, Deep-Learning Earth System Models (DL-ESMs) have emerged as promising, computationally efficient complements to traditional Earth system models. Here, we present an evaluation framework for testing DL-ESMs from a…

大气与海洋物理 · 物理学 2026-05-20 Giuliana Pallotta , Shiheng Duan , Céline Bonfils , Jiwoo Lee , Seth Goodnight , Paul Ullrich

FEARLESS (Fluid mEchanics with Adaptively Refined Large Eddy SimulationS) is a new numerical scheme arising from the combined use of subgrid scale (SGS) model for turbulence at the unresolved length scales and adaptive mesh refinement (AMR)…

宇宙学与河外天体物理 · 物理学 2014-11-20 L. Iapichino , A. Maier , W. Schmidt , J. C. Niemeyer

In this paper we try to look into the future to divine how large eddy and detached eddy simulations (LES and DES, respectively) will be used in the engineering design process about 20-30 years from now. Some key challenges specific to the…

流体动力学 · 物理学 2014-07-31 Johan Larsson , Qiqi Wang

Since Estimation of Distribution Algorithms (EDA) were proposed, many attempts have been made to improve EDAs' performance in the context of global optimization. So far, the studies or applications of multivariate probabilistic model based…

神经与进化计算 · 计算机科学 2011-11-10 Weishan Dong , Tianshi Chen , Peter Tino , Xin Yao

The increasing global emphasis on sustainability and reducing carbon emissions is pushing governments and corporations to rethink their approach to data center design and operation. Given their high energy consumption and exponentially…