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Advances in computational science offer a principled pipeline for predictive modeling of cardiovascular flows and aspire to provide a valuable tool for monitoring, diagnostics and surgical planning. Such models can be nowadays deployed on…

机器学习 · 计算机科学 2019-09-19 Georgios Kissas , Yibo Yang , Eileen Hwuang , Walter R. Witschey , John A. Detre , Paris Perdikaris

Research on methods for planning and controlling water distribution networks gains increasing relevance as the availability of drinking water will decrease as a consequence of climate change. So far, the majority of approaches is based on…

Machine learning (ML) has emerged as a powerful tool for tackling complex regression and classification tasks, yet its success often hinges on the quality of training data. This study introduces an ML paradigm inspired by domain knowledge…

机器学习 · 计算机科学 2025-01-10 Mohsen Rashki

Concentration gradients in a fluid along a reactive surface due to contrast in surface reactivity generate convective flows. These flows result from contributions by electro and diffusio osmotic phenomena. In this study we have analyzed…

流体动力学 · 物理学 2018-05-23 Scott. M. Davidson , Rob G. H. Lammertink , Ali Mani

With water quality management processes, identifying and interpreting relationships between features, such as location and weather variable tuples, and water quality variables, such as levels of bacteria, is key to gaining insights and…

人工智能 · 计算机科学 2022-12-12 Conor Muldoon , Levent Görgü , John J. O'Sullivan , Wim G. Meijer , Gregory M. P. O'Hare

We consider the problem of modeling high-speed flows using machine learning methods. While most prior studies focus on low-speed fluid flows in which uniform time-stepping is practical, flows approaching and exceeding the speed of sound…

This work introduces a novel application for predicting the macroscopic intrinsic permeability tensor in deformable porous media, using a limited set of micro-CT images of real microgeometries. The primary goal is to develop an efficient,…

流体动力学 · 物理学 2025-01-14 Yousef Heider , Fadi Aldakheel , Wolfgang Ehlers

The quantification of surface area between mineral and reactive fluid is essential in environmental applications of reactive transport modelling. This quantity evolves with microstructures and is difficult to predict because the mechanisms…

流体动力学 · 物理学 2019-02-28 Y. Yang , M. Rogowska , Y. Zheng , S. Bruns , C. Gundlash , S. L. S. Stipp , H. O. Sørensen

We propose a physics-constrained machine learning method-based on reservoir computing- to time-accurately predict extreme events and long-term velocity statistics in a model of turbulent shear flow. The method leverages the strengths of two…

流体动力学 · 物理学 2021-04-14 Nguyen Anh Khoa Doan , Wolfgang Polifke , Luca Magri

A modelling framework based on the resolvent analysis and machine learning is proposed to predict the turbulent energy in incompressible channel flows. In the framework, the optimal resolvent response modes are selected as the basis…

流体动力学 · 物理学 2024-03-11 Yitong Fan , Bo Chen , Weipeng Li

Machine learning is used to develop closure terms for coarse grained model of two-dimensional turbulent flow directly from the coarse grained data by adding a source term to the Navier-Stokes equations to ensure that the coarse-grained flow…

流体动力学 · 物理学 2022-05-04 Xianyang Chen , Jiacai Lu , Gretar Tryggvason

We use machine learning methods on local structure to identify flow defects - or regions susceptible to rearrangement - in jammed and glassy systems. We apply this method successfully to two disparate systems: a two dimensional experimental…

Conceptualizing a porous media as a network of conductors sets a compromise between the oversimplifying conceptualization of the media as a bundle of capillary tubes and the computationally expensive and unobtainable detailed description of…

流体动力学 · 物理学 2024-03-22 Ilan Ben-Noah , Juan J. Hidalgo , Marco Dentz

Determining onflow parameters is crucial from the perspectives of wind tunnel testing and regular flight and wind turbine operations. These parameters have traditionally been predicted via direct measurements which might lead to challenges…

机器学习 · 计算机科学 2025-06-19 Emre Yilmaz , Philipp Bekemeyer

Two-phase flow systems in porous media have complex dynamics. It is well established that a wide range of system parameters like viscosities and porosity as well as flow parameters such as pressure gradient and fluid saturation have strong…

凝聚态物理 · 物理学 2007-05-23 Henning Arendt Knudsen , Alex Hansen

We demonstrate several techniques to encourage practical uses of neural networks for fluid flow estimation. In the present paper, three perspectives which are remaining challenges for applications of machine learning to fluid dynamics are…

流体动力学 · 物理学 2022-05-19 Masaki Morimoto , Kai Fukami , Kai Zhang , Koji Fukagata

Accurately predicting chemical reaction outcomes and potential byproducts is a fundamental task of modern chemistry, enabling the efficient design of synthetic pathways and driving progress in chemical science. Reaction mechanism, which…

化学物理 · 物理学 2025-03-14 Shuan Chen , Kye Sung Park , Taewan Kim , Sunkyu Han , Yousung Jung

This study introduces a pore morphology algorithm that emphasizes the central role of topology in multiphase flow through porous media. Analysis of drainage in lattice-based pore networks identifies two key quantities, the percolation…

统计力学 · 物理学 2025-08-27 Fernando Alonso-Marroquin

Normalizing flows are invertible neural networks with tractable change-of-volume terms, which allow optimization of their parameters to be efficiently performed via maximum likelihood. However, data of interest are typically assumed to live…

机器学习 · 统计学 2021-11-04 Anthony L. Caterini , Gabriel Loaiza-Ganem , Geoff Pleiss , John P. Cunningham

We propose the first machine-learned control-oriented flow estimation for multiple-input multiple-output plants. Starting point is constant actuation with open-loop actuation commands leading to a database with simultaneously recorded…

流体动力学 · 物理学 2022-12-14 Songqi Li , Wenpeng Li , Bernd R. Noack