Space-time evolution of wave groups in crossing seas with the Quasi-determinism theory

2014 ◽  
Vol 91 ◽  
pp. 350-362 ◽  
Author(s):  
A. Santoro ◽  
C. Guedes Soares ◽  
F. Arena
Keyword(s):  
Time Evolution ◽  
Space Time ◽  
Wave Groups ◽  
Space Time Evolution

Nonlinear Space–Time Evolution of Wave Groups With a High Crest

2005 ◽  
Vol 127 (1) ◽  
pp. 46-51 ◽  
Author(s):  
Felice Arena ◽  
Francesco Fedele
Keyword(s):  
Time Evolution ◽  
Surface Displacement ◽  
Fixed Time ◽  
Space Time ◽  
Second Order ◽  
Random Wave ◽  
Wave Groups ◽  
Free Surface Displacement ◽  
Nonlinear Free Surface ◽  
Space Time Evolution

The theory of quasi-determinism, for the mechanics of linear random wave groups was obtained by Boccotti in the eighties. The first formulation of the theory deals with the largest crest amplitude; the second formulation deals with the largest wave height. In this paper the first formulation of Boccotti’s theory, particularized for long-crested waves, is extended to the second-order. The analytical expressions of the nonlinear free surface displacement and velocity potential are obtained. The space–time evolution of the nonlinear wave group, when a very large crest occurs at a fixed time and location, is then shown. Finally the second-order probability of exceedance of the crest amplitude is obtained and validated by Monte Carlo simulation.

Analysis of Experimental Results on the Space-Time Evolution of Wave Groups in Crossing Seas

2013 ◽  
Author(s):  
Anita Santoro ◽  
C. Guedes Soares ◽  
Felice Arena
Keyword(s):  
Time Evolution ◽  
Laboratory Data ◽  
Low Frequency ◽  
Frequency Component ◽  
Space Time ◽  
The Other ◽  
Specific Point ◽  
Wave Groups ◽  
Related Group ◽  
Space Time Evolution

The space-time evolution of high wave groups in crossing seas is studied. Profiles are calculated by applying Quasideterminism theory of Boccotti to laboratory data, given that a high crest takes place in a fixed point in the basin. It is observed that the high waves group is given by the superposition of two wave groups, associated one to the low-frequency component of the frequency spectrum and the other to the high-frequency one. It is shown how in crossing seas, the change in direction of one system affects the evolution of the related group, without any influence on the evolution of the other one. Different locations of high crest occurrence have been considered in order to study the effect of the change in spectrum on the deterministic profiles. It is shown that in crossing seas the profile at each location reflects the spectrum related to that specific point.

Space-time evolution of random wave groups with high waves based on the quasi-determinism theory

2011 ◽  
Vol 38 (14-15) ◽  
pp. 1640-1648 ◽  
Author(s):  
Petya G. Petrova ◽  
Felice Arena ◽  
C. Guedes Soares
Keyword(s):  
Time Evolution ◽  
Space Time ◽  
Random Wave ◽  
Wave Groups ◽  
Space Time Evolution

scholarly journals Space–time evolution of the λφ4 model: classical and quantum aspects

2001 ◽  
Vol 508 (3-4) ◽  
pp. 243-250 ◽  
Author(s):  
Fábio L. Braghin ◽  
Fernando S. Navarra
Keyword(s):  
Time Evolution ◽  
Space Time ◽  
Space Time Evolution ◽  
Quantum Aspects

scholarly journals Electromagnetic effects on meson production: a new tool for studying the space-time evolution of heavy ion collisions

2016 ◽  
Vol 130 ◽  
pp. 05016 ◽  
Author(s):  
Andrzej Rybicki ◽  
Antoni Szczurek ◽  
Mariola Kłusek-Gawenda ◽  
Nikolaos Davis ◽  
Vitalii Ozvenchuk ◽  
...  
Keyword(s):  
Time Evolution ◽  
Heavy Ion Collisions ◽  
Meson Production ◽  
Heavy Ion ◽  
Space Time ◽  
Ion Collisions ◽  
Electromagnetic Effects ◽  
Space Time Evolution

scholarly journals Charged Kaon Interferometric Probes of Space-Time Evolution inAu+AuCollisions atsNN=200  GeV

2009 ◽  
Vol 103 (14) ◽  
Author(s):  
S. Afanasiev ◽  
C. Aidala ◽  
N. N. Ajitanand ◽  
Y. Akiba ◽  
J. Alexander ◽  
...  
Keyword(s):  
Time Evolution ◽  
Space Time ◽  
Charged Kaon ◽  
200 Gev ◽  
Space Time Evolution

Space–time evolution of spin-wave packets

2009 ◽  
Vol 40 (4-5) ◽  
pp. 779-781 ◽  
Author(s):  
P. Pereyra ◽  
V.G. Ibarra-Sierra ◽  
J.L. Cardoso
Keyword(s):  
Time Evolution ◽  
Spin Wave ◽  
Wave Packets ◽  
Space Time ◽  
Space Time Evolution
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