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Temperature fluctuations in an atmospheric convective boundary layer are investigated by means of Large Eddy Simulations (LES). A statistical characterization for both weak temperature fluctuations and strong temperature fluctuations has…

Atmospheric and Oceanic Physics · Physics 2009-11-07 M. Antonelli , A. Mazzino , U. Rizza

Current design constraints have encouraged the studies of aeroacoustics fields around compressible jet flows. The present work addresses the numerical study of unsteady turbulent jet flows for aeroacoustic analyses of main engine rocket…

Fluid Dynamics · Physics 2022-12-26 Carlos Junqueira-Junior , Sami Yamouni , Joao Luiz F. Azevedo , William Wolf

3D point clouds are increasingly vital for applications like autonomous driving and robotics, yet the raw data captured by sensors often suffer from noise and sparsity, creating challenges for downstream tasks. Consequently, point cloud…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Donghyun Kim , Hyeonkyeong Kwon , Yumin Kim , Seong Jae Hwang

High Reynolds Homogeneous Isotropic Turbulence is fully described within the Navier-Stokes (NS) equations, which are notoriously difficult to solve numerically. Engineers, interested primarily in describing turbulence at a reduced range of…

Training and deploying deep learning models in real-world applications require processing large amounts of data. This is a challenging task when the amount of data grows to a hundred terabytes, or even, petabyte-scale. We introduce a hybrid…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-10-17 Davit Buniatyan

Turbulent flow has been extensively studied using computational fluid dynamics (CFD) simulations since turbulent flow regime is so frequently encountered in both academic and engineering applications. The high-fidelity simulation of the…

Fluid Dynamics · Physics 2024-05-21 Minghan Chu

A state-of-the-art large eddy simulation code has been developed to solve compressible flows in turbomachinery. The code has been engineered with a high degree of scalability, enabling it to effectively leverage the many-core architecture…

Climate models play a crucial role in understanding the effect of environmental and man-made changes on climate to help mitigate climate risks and inform governmental decisions. Large global climate models such as the Community Earth System…

Applications · Statistics 2020-12-02 Niccolò Dalmasso , Galen Vincent , Dorit Hammerling , Ann B. Lee

With the increasing computations in power system simulations, high-performance and cost-effective power system simulator is highly required. In this paper, a cloud-computing based power system simulator, namely CloudPSS, is designed. Based…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-12-24 Yankan Song , Ying Chen , Zhitong Yu , Shaowei Huang , Chen Shen

End-to-end mission performance simulators (E2ES) are suitable tools to accelerate satellite mission development from concet to deployment. One core element of these E2ES is the generation of synthetic scenes that are observed by the various…

Signal Processing · Electrical Eng. & Systems 2020-12-10 J. Vicent , J. Verrelst , J. P. Rivera-Caicedo , N. Sabater , J. Muñoz-Marí , G. Camps-Valls , J. Moreno

Simulations of frames from existing and upcoming high-resolution spectrographs, targeted for high accuracy radial velocity measurements, are computationally demanding (both in time and space). We present in this paper an innovative approach…

Instrumentation and Methods for Astrophysics · Physics 2020-08-14 M. Genoni , M. Landoni , G. Pariani , M. Riva , A. Bianco , G. Li Causi , T. Marquart , F. A. Pepe , A. Marconi , E. Oliva

Addressing complex meteorological processes at a fine spatial resolution requires substantial computational resources. To accelerate meteorological simulations, researchers have utilized neural networks to downscale meteorological variables…

Atmospheric and Oceanic Physics · Physics 2024-04-30 Jing Hu , Honghu Zhang , Peng Zheng , Jialin Mu , Xiaomeng Huang , Xi Wu

This paper presents the GPU porting through OpenACC directives of the Dutch Atmospheric Large-Eddy Simulation (DALES) application, a high-resolution atmospheric model. The code is written in Fortran~90 and features parallel (distributed)…

Computational Engineering, Finance, and Science · Computer Science 2025-03-03 Lucas Esclapez , Laurent Soucasse , Caspar Jungbacker , Fredrik Jansson , Stephan R. de Roode , Pedro Costa , Gijs van den Oord , Alessio Sclocco

As we approach the Exascale era, it is important to verify that the existing frameworks and tools will still work at that scale. Moreover, public Cloud computing has been emerging as a viable solution for both prototyping and urgent…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-06-23 Igor Sfiligoi , Frank Wuerthwein , Benedikt Riedel , David Schultz

Systems comprising a turbulent channel flow overlaying a permeable bed can be found in a variety of industrial and natural applications (e.g. urban planning, fracking, submerged vegetation). One important realization of this system is at…

Fluid Dynamics · Physics 2017-08-01 Benjamin H. Sonin

Climate change has been a common interest and the forefront of crucial political discussion and decision-making for many years. Shallow clouds play a significant role in understanding the Earth's climate, but they are challenging to…

Image and Video Processing · Electrical Eng. & Systems 2021-07-13 Tashin Ahmed , Noor Hossain Nuri Sabab

In recent years, there has been a significant increase in the utilization of deep learning methods, particularly convolutional neural networks (CNNs), which have emerged as the dominant approach in various domains that involve structured…

Machine Learning · Computer Science 2024-04-09 Chester Luo , Kevin Lai

Robustly modeling the inner edge of the habitable zone is essential for determining the most promising potentially habitable exoplanets for atmospheric characterization. Global climate models (GCMs) have become the standard tool for…

Earth and Planetary Astrophysics · Physics 2019-12-25 Jun Yang , Jeremy Leconte , Eric T. Wolf , Timonthy Merlis , Daniel D. B. Koll , Francois Forget , Dorian S. Abbot

Storms operated by moist convection and the condensation of $\rm CH_{4}$ or $\rm H_{2}S$ have been observed on Uranus and Neptune. However, the mechanism of cloud formation, thermal structure, and mixing efficiency of ice giant weather…

Earth and Planetary Astrophysics · Physics 2023-10-25 Huazhi Ge , Cheng Li , Xi Zhang , Chris Moeckel

Numerical methods play an ever more important role in astrophysics. This is especially true in theoretical works, but of course, even in purely observational projects, data analysis without massive use of computational methods has become…

Astrophysics of Galaxies · Physics 2014-12-18 Volker Springel