中文
相关论文

相关论文: Model order reduction for bifurcating phenomena in…

200 篇论文

We study certain significant properties of the equilibrium configurations of a rigid body subject to an undamped elastic restoring force, in the stream of a viscous liquid in an unbounded 3D domain. The motion of the coupled system is…

偏微分方程分析 · 数学 2024-06-07 Denis Bonheure , Giovanni P. Galdi , Filippo Gazzola

Many complex engineering systems consist of multiple subsystems that are developed by different teams of engineers. To analyse, simulate and control such complex systems, accurate yet computationally efficient models are required. Modular…

系统与控制 · 电气工程与系统科学 2023-01-02 Lars A. L. Janssen , Bart Besselink , Rob H. B. Fey , Nathan van de Wouw

Exploring structural order in disordered systems including liquids and glasses is an intriguing but challenging issue in condensed matter physics. Here we construct a new parameter based on the angular distribution function of particles and…

软凝聚态物质 · 物理学 2018-06-11 Xiunan Yang , Wei-Hua Wang , Ke Chen

A lubrication model can be used to describe the dynamics of a weakly volatile viscous fluid layer on a hydrophobic substrate. Thin layers of the fluid are unstable to perturbations and break up into slowly evolving interacting droplets. A…

流体动力学 · 物理学 2024-01-18 Hangjie Ji , Thomas P. Witelski

In this work, we consider fluid-structure interaction simulation with nonlinear hyperelastic models in the solid part. We use a partitioned approach to deal with the coupled nonlinear fluid-structure interaction problems. We focus on…

数值分析 · 数学 2013-12-20 Ulrich Langer , Huidong Yang

Modeling important engineering problems related to flow-induced damage (in the context of hydraulic fracturing among others) depends critically on characterizing the interaction of porous media and interstitial fluid flow. This work…

数值分析 · 数学 2012-06-27 Daniel Z. Turner

A thin flat rectangular plate supported on its edges and subjected to in-plane loading exhibits stable post-buckling behaviour. However, the introduction of a nonlinear (softening) elastic foundation may cause the response to become…

斑图形成与孤子 · 物理学 2016-03-18 M. Khurram Wadee , David J. B. Lloyd , Andrew P. Bassom

This work focuses on the derivation and the analysis of a novel, strongly-coupled partitioned method for fluid-structure interaction problems. The flow is assumed to be viscous and incompressible, and the structure is modeled using linear…

数值分析 · 数学 2022-11-09 Martina Bukac , Anyastassia Seboldt , Catalin Trenchea

The response of underwater structures to a near-field explosion is coupled with the dynamics of the explosion bubble and the surrounding water. This multiphase fluid-structure interaction process is investigated using a model problem that…

流体动力学 · 物理学 2023-09-15 Wentao Ma , Xuning Zhao , Christine Gilbert , Kevin Wang

In this paper, we consider a monolithic approach to handle coupled fluid-structure interaction problems with different hyperelastic models in an all-at-once manner. We apply Newton's method in the outer iteration dealing with nonlinearities…

数值分析 · 数学 2014-08-19 Ulrich Langer , Huidong Yang

In this study, we address causal inference when only observational data and a valid causal ordering from the causal graph are available. We introduce a set of flow models that can recover component-wise, invertible transformation of…

机器学习 · 计算机科学 2024-12-16 Minh Khoa Le , Kien Do , Truyen Tran

The main goal of this work is to develop a data-driven Reduced Order Model (ROM) strategy from high-fidelity simulation result data of a Full Order Model (FOM). The goal is to predict at lower computational cost the time evolution of…

计算工程、金融与科学 · 计算机科学 2024-09-02 Azzeddine Tiba , Thibault Dairay , Florian de Vuyst , Iraj Mortazavi , Juan-Pedro Berro Ramirez

We investigate Kondo correlations in a quantum dot with normal and superconducting electrodes, where a spin bias voltage is applied across the device and the local interaction $U$ is either attractive or repulsive. When the spin current is…

强关联电子 · 物理学 2018-06-13 Tie-Feng Fang , Ai-Min Guo , Qing-Feng Sun

In this paper, we present a generic approach of a dynamical data-driven model order reduction technique for three-dimensional fluid-structure interaction problems. A low-order continuous linear differential system is identified from…

计算工程、金融与科学 · 计算机科学 2023-01-25 Claire Dupont , Florian De Vuyst , Anne-Virginie Salsac

Model order reduction in high-dimensional, nonlinear dynamical systems if often enabled through fast-slow timescale separation. One such approach involves identifying a low-dimensional slow manifold to which the state rapidly converges and…

动力系统 · 数学 2026-05-14 Dan Wilson

Cooperativity effects have been proposed to explain the non-local rheology in the dynamics of soft jammed systems. Based on the analysis of the free-energy model proposed by L. Bocquet, A. Colin \& A. Ajdari ({\em Phys. Rev. Lett.} {\bf…

软凝聚态物质 · 物理学 2015-10-15 R. Benzi , M. Sbragaglia , M. Bernaschi , S. Succi , F. Toschi

This book is organized into eight chapters. The first three gently introduce the basic principles of hybrid high-order methods on a linear diffusion problem, the key ideas underlying the mathematical analysis, and some useful variants of…

数值分析 · 数学 2021-11-11 Matteo Cicuttin , Alexandre Ern , Nicolas Pignet

This study explores the role that the microstructure plays in determining the macroscopic static response of porous elastic continua and exposes the occurrence of position-dependent nonlocal effects that are strictly correlated to the…

材料科学 · 物理学 2022-09-30 Sansit Patnaik , Mehdi Jokar , Wei Ding , Fabio Semperlotti

This paper is devoted to the study of a hemivariational inequality modeling the quasistatic bilateral frictional contact between a viscoelastic body and a rigid foundation. The damage effect is built into the model through a parabolic…

数值分析 · 数学 2019-12-18 Weimin Han , Michal Jureczka , Anna Ochal

We have shown [J.\ Fluid Mech.\ {\bf 592}, 447 (2007)] that swapping (reversing) trajectories in confined suspension flows prevent collisions between particles approaching each other in adjacent streamlines. Here we demonstrate that by…

软凝聚态物质 · 物理学 2015-06-03 M. Zurita-Gotor , J. Bławzdziewicz , E. Wajnryb