Wave interaction with a floating rectangular box near a vertical wall with step type bottom topography

2010 ◽  
Vol 22 (S1) ◽  
pp. 91-96 ◽  
Author(s):  
Joydip Bhattacharjee ◽  
C. Guedes Soares
2008 ◽  
Vol 27 (4) ◽  
pp. 409-418 ◽  
Author(s):  
Efim Pelinovsky ◽  
Christian Kharif ◽  
Tatiana Talipova

2020 ◽  
Author(s):  
Seung-Woo Lee ◽  
SungHyun Nam

<p>Oceanic nonlinear internal waves (NLIWs) play an important role in regional circulation, biogeochemistry, energetics, vertical mixing, and underwater acoustics, causing hazards to marine engineering and submarine navigation. Mainly generated by the interaction of the barotropic tides with the bottom topography, they propagate and transform due to wave-wave interaction process. Here, we present characteristics of first two modes of NLIWs observed using high-resolution spatiotemporal data collected in a relatively flat area in the northeastern East China Sea in May 2015. Six groups of NLIWs were identified from the observations: four groups of mode-1 and two groups of mode-2. The amplitude, propagation speed, and characteristic width of mode-1 NLIWs had ranges of 4–16 m, 0.53–0.56 m s<sup>-1</sup>, and 310–610 m, respectively. The mode-2 NLIWs propagate eastward slowly with a speed less than 0.37 m s<sup>-1</sup> with a comparable amplitude of 4–14 m and longer characteristic width of 540–1920 m. Intermodal interactions may take a role in the evolution of mode-1 NLIWs west of the observational area. Our results characterizing the two modes of NLIWs highlight the significance of propagation and transformation of NLIWs and their modal interactions on a broad and shallow shelf.</p>


Author(s):  
Ray-Qing Lin ◽  
Weijia Kuang

Ship motion instabilities occur much more frequently in coastal regions than in the deep ocean because both nonlinear wave-wave interactions and wave-current interactions increase significantly as the water depth decreases. This is particularly significant in the coastal regions connecting to the open ocean, since the wave resonant interactions change from the four-equivalent-wave interaction in deep water to the interactions of three local wind waves with a long wave (e.g. swell, edge waves, bottom topography waves, etc.) in shallow water [1, 2], resulting in rapid growth of the incoming long waves. In this study, we use our DiSSEL (Digital, Self-consistent, Ship Experimental Laboratory) Ship Motion Model [3,4,5,6] coupled with our Coastal Wave Model [1,2,11] and an Ocean Circulation Model [7] to simulate strongly nonlinear ship motions in coastal regions, focusing on the ship motion instabilities arising from ship body-surface wave-current interactions.


2016 ◽  
Vol 58 (3) ◽  
pp. 1650008-1-1650008-26 ◽  
Author(s):  
Harekrushna Behera ◽  
Trilochan Sahoo ◽  
Chiu-On Ng

2014 ◽  
Vol 88 ◽  
pp. 330-341 ◽  
Author(s):  
Didier E. ◽  
Neves D.R.C.B. ◽  
Martins R. ◽  
Neves M.G.

2016 ◽  
Vol 113 ◽  
pp. 1-10 ◽  
Author(s):  
Harpreet Dhillon ◽  
Sudeshna Banerjea ◽  
B.N. Mandal

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