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Using Time-Dependent Density Matrix Renormalization Group (TDMRG) we study the collision of one-dimensional atomic clouds confined in a harmonic trap and evolving with the Lieb-Liniger Hamiltonian. It is observed that the motion is…

量子气体 · 物理学 2014-01-27 Sebastiano Peotta , Massimiliano Di Ventra

Hammack & Segur (1978) conducted a series of surface water-wave experiments in which the evolution of long waves of depression was measured and studied. This present work compares time series from these experiments with predictions from…

流体动力学 · 物理学 2018-05-02 John D. Carter

We study viscous-dispersive shock waves with infinite oscillations of the Korteweg-de Vries-Burgers (KdVB) equation. First, we establish detail structures of the shock waves, including the rates at which the local extrema converge to the…

偏微分方程分析 · 数学 2026-03-10 Geng Chen , Namhyun Eun , Moon-Jin Kang , Yannan Shen

In this paper, the propagation of water surface waves over one-dimensional periodic and random bottoms is investigated by the transfer matrix method. For the periodic bottoms, the band structure is calculated, and the results are compared…

流体动力学 · 物理学 2009-11-10 Meng-Jie Huang , Chao-Hsien Kuo , Zhen Ye

We consider a smooth forward facing step defined by the Gauss error function of height 4-30\% and four times the width of the local boundary layer thickness $\delta_{99}$. The boundary layer flow over a smooth forward-facing stepped plate…

流体动力学 · 物理学 2016-03-11 Hui Xu , Jean-Eloi W. Lombard , Spencer J. Sherwin

Wave steepness is a key geometric variable for describing breaking occurrence and its consequences, including energy dissipation and air entrainment. Using three laboratory campaigns under varying spectral conditions and co-flowing wind…

流体动力学 · 物理学 2026-05-29 Rui Cao , Enrique M. Padilla , Xu Chen , Adrian H. Callaghan

The evolution of a solitary wave with very weak nonlinearity which was originally investigated by Miles [4] is revisited. The solution for a one-dimensional gravity wave in a water of uniform depth is considered. This leads to finding the…

斑图形成与孤子 · 物理学 2017-04-11 S. G. Sajjadi , T. A. Smith

The breaking of detailed balance in fluids through Coriolis forces or odd-viscous stresses has profound effects on the dynamics of surface waves. Here we explore both weakly and strongly non-linear waves in a three-dimensional fluid with…

流体动力学 · 物理学 2025-02-04 Alex Doak , Guido Baardink , Paul A Milewski , Anton Souslov

We present a numerical study of classical particles diffusing on a solid surface. The particles' motion is modeled by an underdamped Langevin equation with ordinary thermal noise. The particle-surface interaction is described by a periodic…

统计力学 · 物理学 2009-11-10 J. M. Sancho , A. M. Lacasta , K. Lindenberg , I. M. Sokolov , A. H. Romero

The propagation of water waves of finite depth and flat bottom is studied in the case when the depth is not small in comparison to the wavelength. This propagation regime is complementary to the long-wave regime described by the famous KdV…

斑图形成与孤子 · 物理学 2024-05-31 Rossen I. Ivanov

We present laboratory experiments of surface wave turbulence excited by paddles in the deep water regime. The free surface is seeded with buoyant particles that are advected and dispersed by the flow. Positions and velocities of the…

We report on the experimental observation of a transition from a dispersive wave turbulence regime to a nondispersive regime involving shock waves on the surface of a fluid. We use a magnetic fluid in a canal subjected to an external…

流体动力学 · 物理学 2023-02-01 Guillaume Ricard , Eric Falcon

Superposition of explicit (analytic) monotone non-increasing shock waves for the KdV-Burgers equation is studied, modelled numerically and graphically presented. Initial profile chosen as a sum of two such shock waves gradually transforms…

斑图形成与孤子 · 物理学 2016-04-05 Alexey Samokhin

The nolinear hydrodynamic equations of the surface of a liquid drop are shown to be directly connected to Korteweg de Vries (KdV, MKdV) systems, giving traveling solutions that are cnoidal waves. They generate multiscale patterns ranging…

流体动力学 · 物理学 2009-11-06 Andrei Ludu , Jerry P. Draayer

The numerical simulation of the nonlinear dynamics of the sea surface has shown that the collision of two groups of relatively low waves with close but noncollinear wave vectors (two or three waves in each group with a steepness of about…

流体动力学 · 物理学 2016-02-12 V. P. Ruban

A large-scale spanwise and wall-normal array of sonic anemometers in the atmospheric surface layer is used to acquire all three components of instantaneous fluctuating velocity as well as temperature in a range of stability conditions.…

流体动力学 · 物理学 2022-06-08 Xuebo Li , Nicholas Hutchins , Xiaojing Zheng , Ivan Marusic , Woutijn J. Baars

The dynamics of a passive scalar plume in a turbulent boundary layer is experimentally investigated via vertical turbulent transport time-series. Data are acquired in a rough-wall turbulent boundary layer that develops in a recirculating…

流体动力学 · 物理学 2019-10-10 Giovanni Iacobello , Massimo Marro , Luca Ridolfi , Pietro Salizzoni , Stefania Scarsoglio

It is universally accepted that the cubic, nonlinear Schrodinger equation (NLS) models the dynamics of narrow-bandwidth wave packets consisting of short dispersive waves, while the Kortewegde Vries equation (KdV) models the propagation of…

数学物理 · 物理学 2016-10-23 Chuangye Liu , Nghiem V. Nguyen

We study the propagation of monochromatic surface waves on a turbulent flow. The flow is generated in a layer of liquid metal by an electromagnetic forcing. This forcing creates a quasi two-dimensional (2D) turbulence with strong vertical…

流体动力学 · 物理学 2015-11-19 Pablo Gutiérrez , Sébastien Aumaitre

Estimators of outer scales of atmospheric turbulence usually fit the phase screen snapshots derived from local wave front sensors to a Zernike basis, and then compare the spectrum of expansion coefficients in this basis with a narrowing…

天体物理仪器与方法 · 物理学 2010-11-05 Richard J. Mathar