On the impact of FPU lattice discreteness upon solitary wave interactions

2005 ◽  
Vol 200 (1-2) ◽  
pp. 25-46 ◽  
Author(s):  
Ewen McMillan
Keyword(s):  
Solitary Wave ◽  
Wave Interactions ◽  
The Impact ◽  
Fpu Lattice

scholarly journals WAVE INTERACTIONS IN LOCALIZING MEDIA — A COIN WITH MANY FACES

2011 ◽  
Vol 21 (08) ◽  
pp. 2107-2124 ◽  
Author(s):  
J. D. BODYFELT ◽  
T. V. LAPTYEVA ◽  
G. GLIGORIC ◽  
D. O. KRIMER ◽  
Ch. SKOKOS ◽  
...  
Keyword(s):  
Wave Interactions ◽  
Destructive Effect ◽  
The Impact

A variety of heterogeneous potentials are capable of localizing linear noninteracting waves. In this work, we review different examples of heterogeneous localizing potentials which were realized in experiments. We then discuss the impact of nonlinearity induced by wave interactions, in particular, its destructive effect on the localizing properties of the heterogeneous potentials.

scholarly journals Effect of Girder Spacing and Depth on the Solitary Wave Impact on Coastal Bridge Deck for Different Airgaps

2019 ◽  
Vol 7 (5) ◽  
pp. 140 ◽  
Author(s):  
Rameeza Moideen ◽  
Manasa Ranjan Behera ◽  
Arun Kamath ◽  
Hans Bihs
Keyword(s):  
Solitary Wave ◽  
Bridge Deck ◽  
Impact Force ◽  
Storm Surges ◽  
Wave Impact ◽  
Wave Condition ◽  
Bridge Damage ◽  
Wave Heights ◽  
The Impact ◽  
Vertical Impact

Coastal bridge damage has become a severe issue of concern in the recent past with the destruction of a considerable number of bridges under the impact of waves during tsunami and storm surges. These events have become more frequent, with waves reaching the bridge deck and causing upliftment and destruction. Past studies have demonstrated the establishment of various theoretical equations which works well for the submerged deck and regular wave types but show much scatter and uncertainty in case of a deck that is above still water level (SWL). The present study aims to generate a solitary wave to represent an extreme wave condition like a tsunami in the numerical wave tank modeled using the open source computational fluid dynamics (CFD) model REEF3D and to study the vertical impact force on the coastal bridge deck. A parametric study is carried out for increasing wave heights, girders spacing and depth for varying airgaps to analyze the effect of these parameters on the peak vertical impact force. It is observed that increasing the girder spacing and girder depth is effective in reducing the peak vertical impact force for the cases considered.

Quasi-soliton and other behaviour of the nonlinear cubic-quintic Schrödinger equation

1986 ◽  
Vol 64 (3) ◽  
pp. 311-315 ◽  
Author(s):  
Stuart Cowan ◽  
R. H. Enns ◽  
S. S. Rangnekar ◽  
Sukhpal S. Sanghera
Keyword(s):  
Solitary Wave ◽  
Schrödinger Equation ◽  
Parameter Space ◽  
Schrodinger Equation ◽  
Solitary Wave Solutions ◽  
Wave Interactions ◽  
Wave Solutions ◽  
The Stability

The stability of the solitary-wave solutions of the nonlinear cubic–quintic Schrödinger equation (NLCQSE) is examined numerically. The solutions are found not to be solitons, but quasi-soliton behaviour is found to persist over wide regions of parameter space. Outside these regions dispersive and explosive behaviour is observed in solitary-wave interactions.

scholarly journals Universality of sea wave growth and its physical roots

2015 ◽  
Vol 780 ◽  
pp. 503-535 ◽  
Author(s):  
Vladimir E. Zakharov ◽  
Sergei I. Badulin ◽  
Paul A. Hwang ◽  
Guillemette Caulliez
Keyword(s):  
First Principles ◽  
Physical Mechanism ◽  
Wave Interactions ◽  
Wave Modelling ◽  
Wave Development ◽  
The Impact ◽  
Nonlinear Wave Interactions ◽  
Sea Wave ◽  
Modelling And Forecasting

Assuming resonant nonlinear wave interactions to be the dominant physical mechanism of growing wind-driven seas we propose a concise relationship between instantaneous wave steepness and time or fetch of wave development expressed in dimensionless wave periods or lengths. This asymptotic physical law derived from the first principles of the theory of weak turbulence does not contain wind speed explicitly. The validity of this law is illustrated by results of numerical simulations, in situ measurements of growing wind seas and wind-wave tank observations. The impact of this new view of sea-wave physics is discussed in the context of conventional approaches to wave modelling and forecasting.

Solitary Wave Interactions in Granular Media

2007 ◽  
Vol 24 (10) ◽  
pp. 2887-2890 ◽  
Author(s):  
Wen Zhen-Ying ◽  
Wang Shun-Jin ◽  
Zhang Xiu-Ming ◽  
Li Lei
Keyword(s):  
Solitary Wave ◽  
Granular Media ◽  
Wave Interactions
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