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Convolutional Neural Networks (CNNs) have shown strong promise for analyzing scientific data from many domains including particle imaging detectors. However, the challenge of choosing the appropriate network architecture (depth, kernel…

计算机视觉与模式识别 · 计算机科学 2020-01-13 Duc Hoang , Jesse Hamer , Gabriel N. Perdue , Steven R. Young , Jonathan Miller , Anushree Ghosh

This work evaluates the applicability of super-resolution generative adversarial networks (SRGANs) as a methodology for the reconstruction of turbulent-flow quantities from coarse wall measurements. The method is applied both for the…

Turbulent flows over blunt bodies with distributed roughness present a class of problems relevant to hypersonic atmospheric entry systems. However, accurate predictions of shear stress on such bodies remains elusive. This work presents a…

流体动力学 · 物理学 2025-08-22 Mateus A. R. Braga , Robyn L. Macdonald

Accurate wind speed forecasting is of great importance for many economic, business and management sectors. This paper introduces a new model based on convolutional neural networks (CNNs) for wind speed prediction tasks. In particular, we…

机器学习 · 计算机科学 2020-07-27 Kevin Trebing , Siamak Mehrkanoon

Direct numerical simulations of turbulent flow in a channel with one rigid and one viscoelastic wall are performed. An Eulerian-Eulerian model is adopted with a level-set approach to identify the fluid-compliant material interface. Focus is…

流体动力学 · 物理学 2021-11-03 Amir Esteghamatian , Joseph Katz , Tamer A. Zaki

The permeability of complex porous materials can be obtained via direct flow simulation, which provides the most accurate results, but is very computationally expensive. In particular, the simulation convergence time scales poorly as…

The onset of hydrodynamic instabilities is of great importance in both industry and daily life, due to the dramatic mechanical and thermodynamic changes for different types of flow motions. In this paper, modern machine learning techniques,…

计算物理 · 物理学 2020-06-03 Wuyue Yang , Liangrong Peng , Yi Zhu , Liu Hong

CFD is widely used in physical system design and optimization, where it is used to predict engineering quantities of interest, such as the lift on a plane wing or the drag on a motor vehicle. However, many systems of interest are…

流体动力学 · 物理学 2020-05-12 Octavi Obiols-Sales , Abhinav Vishnu , Nicholas Malaya , Aparna Chandramowlishwaran

In this research paper, we study the capability of artificial neural network models to emulate storm surge based on the storm track/size/intensity history, leveraging a database of synthetic storm simulations. Traditionally, Computational…

机器学习 · 计算机科学 2022-04-21 Ehsan Adeli , Luning Sun , Jianxun Wang , Alexandros A. Taflanidis

Fast prediction of suspension rheology is fundamental for optimizing process efficiency and performance in numerous industrial settings. However, traditional simulations are computationally demanding due to explicit evaluation of contact…

软凝聚态物质 · 物理学 2026-02-10 Armin Aminimajd , Joao Maia , Abhinendra Singh

This study proposes an efficient neural network with convolutional layers to classify significantly class-imbalanced clinical data. The data are curated from the National Health and Nutritional Examination Survey (NHANES) with the goal of…

定量方法 · 定量生物学 2020-04-24 Aniruddha Dutta , Tamal Batabyal , Meheli Basu , Scott T. Acton

We propose a four-layer fully-connected neural network (FNN) for predicting fluid intelligence scores from T1-weighted MR images for the ABCD-challenge. In addition to the volumes of brain structures, the FNN uses cortical WM/GM contrast…

神经元与认知 · 定量生物学 2019-09-13 Juan Miguel Valverde , Vandad Imani , John D. Lewis , Jussi Tohka

Accurate brain tissue segmentation in Magnetic Resonance Imaging (MRI) has attracted the attention of medical doctors and researchers since variations in tissue volume help in diagnosing and monitoring neurological diseases. Several…

计算机视觉与模式识别 · 计算机科学 2019-07-30 Jose Bernal , Kaisar Kushibar , Mariano Cabezas , Sergi Valverde , Arnau Oliver , Xavier Lladó

The present work proposes an inflow turbulence generation strategy using deep learning methods. This is achieved with the help of an autoencoder architecture with two different types of operational layers in the latent-space: a fully…

流体动力学 · 物理学 2019-10-16 Aakash Vijay Patil

A neutral boundary layer was generated in the laboratory to analyze the mean velocity field and the turbulence field within and above an array of two-dimensional obstacles simulating an urban canopy. Different geometrical configurations…

流体动力学 · 物理学 2020-01-28 Annalisa Di Bernardino , Paolo Monti , Giovanni Leuzzi , Giorgio Querzoli

The rapid development of deep learning has significant implications for the advancement of Computational Fluid Dynamics (CFD). Currently, most pixel-grid-based deep learning methods for flow field prediction exhibit significantly reduced…

流体动力学 · 物理学 2024-04-11 Tianyu Li , Shufan Zou , Xinghua Chang , Laiping Zhang , Xiaogang Deng

Pore-resolved direct numerical simulations of turbulent open channel flow are performed comparing the structure and dynamics of turbulence over impermeable rough and smooth walls to a porous sediment bed at permeability Reynolds number…

流体动力学 · 物理学 2022-05-02 Shashank K. Karra , Sourabh V. Apte , Xiaoliang He , Timothy D. Scheibe

Two distinct features of anthropogenic climate change, warming in the tropical upper troposphere and warming at the Arctic surface, have competing effects on the mid-latitude jet stream's latitudinal position, often referred to as a…

大气与海洋物理 · 物理学 2023-01-03 Charlotte Connolly , Elizabeth A. Barnes , Pedram Hassanzadeh , Mike Pritchard

A combined convolutional autoencoder-recurrent neural network machine learning model is presented to analyse and forecast the dynamics and low-order statistics of the local convective heat flux field in a two-dimensional turbulent…

流体动力学 · 物理学 2022-04-13 Sandeep Pandey , Philipp Teutsch , Patrick Mäder , Jörg Schumacher

With the advancement in computing power over last decades, deep neural networks (DNN), consisting of two or more hidden layers with large number of nodes, are being suggested as an alternate to commonly used single-hidden-layer neural…

神经与进化计算 · 计算机科学 2019-10-10 Mahesh Pal