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The numerical analysis of elastic wave propagation in unbounded media may be difficult to handle due to spurious waves reflected at the model artificial boundaries. Several sophisticated techniques such as nonreflecting boundary conditions,…

经典物理 · 物理学 2010-09-06 Jean-François Semblat , Ali Gandomzadeh , Luca Lenti

Structural survival of offshore structures is crucial for the growing marine economy. Calculating the added mass, radiation damping, and excitation coefficients to quantify wave loads with the traditional boundary element method (BEM)…

大气与海洋物理 · 物理学 2026-05-20 Yinghui Bimali , Rebecca McCabe , Collin Treacy , Kapil Khanal , En Lo , Maha Haji

We describe updates and improvements to the BayesWave gravitational wave transient analysis pipeline, and provide examples of how the algorithm is used to analyze data from ground-based gravitational wave detectors. BayesWave models…

广义相对论与量子宇宙学 · 物理学 2021-02-10 Neil J. Cornish , Tyson B. Littenberg , Bence Bécsy , Katerina Chatziioannou , James A. Clark , Sudarshan Ghonge , Margaret Millhouse

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 usual approach on electrostatic wave decay process for a weak beam-plasma system considers two different wave modes interplaying, the Langmuir and ion-sound mode. In the present paper, a single-mode approach is shown to be feasible for…

等离子体物理 · 物理学 2024-12-19 Guilherme T. Irumé , Joel Pavan , Rudi Gaelzer

Structural Health Monitoring (SHM) systems are critical for monitoring aging infrastructure (such as buildings or bridges) in a cost-effective manner. Such systems typically involve collections of battery-operated wireless sensors that…

信息论 · 计算机科学 2015-06-16 Jae Young Park , Michael B. Wakin , Anna C. Gilbert

Gravitational-wave (GW) ringdown signals from black holes (BHs) encode crucial information about the gravitational dynamics in the strong-field regime, which offers unique insights into BH properties. In the future, the improving…

广义相对论与量子宇宙学 · 物理学 2026-04-24 Yiming Dong , Ziming Wang , Hai-Tian Wang , Junjie Zhao , Lijing Shao

A flexible and efficient method for fully vectorial modal analysis of 3D dielectric optical waveguides with arbitrary 2D cross-sections is proposed. The technique is based on expansion of each modal component in some a priori defined…

光学 · 物理学 2013-11-07 Alyona Ivanova , Remco Stoffer , Manfred Hammer

The stability of plane Poiseuille flow of a viscous Newtonian fluid in a multilayer channel with anisotropic porous walls is analyzed using the classical modal analysis, the energy method, and the non-modal analysis. The influence of porous…

流体动力学 · 物理学 2024-09-24 Supriya Karmakar , Priyanka Shukla

Reduced Bloch mode expansion is presented for fast periodic media band structure calculations. The expansion employs a natural basis composed of a selected reduced set of Bloch eigenfunctions. The reduced basis is selected within the…

计算物理 · 物理学 2012-10-25 Mahmoud I. Hussein

A closed-form analytical solution is found for the nonlinear dynamics of isolated, near-threshold waves in the presence of strong scattering. The proposed solution can be useful in verifying codes across several disciplines, including…

等离子体物理 · 物理学 2020-01-17 Vinicius Duarte , Nikolai Gorelenkov

In the present study, we propose a modified version of the Nonlinear Shallow Water Equations (Saint-Venant or NSWE) for irrotational surface waves in the case when the bottom undergoes some significant variations in space and time. The…

经典物理 · 物理学 2020-02-20 Denys Dutykh , Didier Clamond

The Shallow Water Moment Equations (SWME) are an extension of the Shallow Water Equations (SWE) for improved modelling of free-surface flows. In contrast to the SWE, the SWME incorporate vertical velocity profile information. The SWME…

数值分析 · 数学 2026-03-03 Mieke Daemen , Julio Careaga , Zhenning Cai , Julian Koellermeier

In the field of Structural Dynamics, modal analysis is the foundation of System Identification and vibration-based inspection. However, despite their widespread use, current state-of-the-art methods for extracting modal parameters from…

系统与控制 · 电气工程与系统科学 2024-11-19 Gabriele Dessena , Marco Civera

We explore the use of multiresolution analysis techniques as texture attributes for seismic image characterization, especially in representing subsurface structures in large migrated seismic data. Namely, we explore the Gaussian pyramid,…

图像与视频处理 · 电气工程与系统科学 2019-02-04 Motaz Alfarraj , Yazeed Alaudah , Zhiling Long , Ghassan AlRegib

An analytical representation for the spatial and temporal dynamics of the simplest of the diffusions -- Bronwian diffusion in an homogeneous slab geometry, with radial symmetry -- is presented. This representation is useful since it…

经典物理 · 物理学 2015-01-22 E. J. Nunes-Pereira

The problem of an electromagnetic wave scattering by a slab with two rough boundaries is solved by a small-perturbation method under the Rayleigh hypothesis. In order to obtain a perturbative development, we use a systematic procedure which…

凝聚态物理 · 物理学 2009-11-07 A. Soubret , G. Berginc , C. Bourrely

This paper presents an efficient strategy for constructing Reduced-Order Model (ROM) bases using Taylor polynomial expansions and Fr{\'e}chet derivatives with respect to model parameters. The proposed approach enables the construction of…

数值分析 · 数学 2025-05-05 Julien Besset , Hélène Barucq , Rabia Djellouli , Stefano Frambati

Damping due to continuum resonances can be calculated using dissipation-less ideal magnetohydrodynamics (MHD) provided that the poles due to these resonances are properly treated. We describe a singular finite element technique for…

等离子体物理 · 物理学 2015-06-23 George W. Bowden , Matthew J. Hole

Regarding lightweighting structures for aeronautics, automotive or construction applications, the level of performance of solutions proposed in terms of damping and isolation is fundamental. Hence multilayered plate appears as an…

经典物理 · 物理学 2012-10-22 Kerem Ege , Thibault Boncompagne , Bernard Laulagnet , Jean-Louis Guyader