Numerical analysis of wave-induced poro-elastic seabed response around a hexagonal gravity-based offshore foundation

2018 ◽  
Vol 136 ◽  
pp. 81-95 ◽  
Author(s):  
Yuzhu Li ◽  
Muk Chen Ong ◽  
Tian Tang
Keyword(s):  
Numerical Analysis ◽  
Wave Induced ◽  
Offshore Foundation

A 3D numerical analysis of wave-induced seabed response around a monopile structure

2019 ◽  
pp. 1-21 ◽  
Author(s):  
Richard Asumadu ◽  
Jisheng Zhang ◽  
H. Y. Zhao ◽  
Hubert Osei-Wusuansa
Keyword(s):  
Numerical Analysis ◽  
Wave Induced

Numerical analysis on random wave-induced porous seabed response

2017 ◽  
Vol 36 (8) ◽  
pp. 974-985 ◽  
Author(s):  
Xiang-Lian Zhou ◽  
Jun Zhang ◽  
Hao-Jie Lv ◽  
Jin-Jian Chen ◽  
Jian-Hua Wang
Keyword(s):  
Numerical Analysis ◽  
Random Wave ◽  
Wave Induced

Numerical Analysis of Wave-induced Motion of Floating Pendulor Wave Energy Converter

2011 ◽  
Vol 25 (4) ◽  
pp. 28-35 ◽  
Author(s):  
Bo-Woo Nam ◽  
Sa-Young Hong ◽  
Ki-Bum Kim ◽  
Ji-Yong Park ◽  
Seung-Ho Shin
Keyword(s):  
Numerical Analysis ◽  
Wave Energy ◽  
Wave Energy Converter ◽  
Energy Converter ◽  
Induced Motion ◽  
Wave Induced

Instabilities of the undertow

1998 ◽  
Vol 369 ◽  
pp. 175-190 ◽  
Author(s):  
LI LI ◽  
ROBERT A. DALRYMPLE
Keyword(s):  
Numerical Analysis ◽  
Velocity Profile ◽  
Water Depth ◽  
Water Surface ◽  
Laboratory Experiments ◽  
Surf Zone ◽  
Additional Layer ◽  
Theoretical And Numerical Analysis ◽  
Wave Induced ◽  
Incident Waves

The steady undertow created by waves breaking at a beach and slowly flowing offshore can become unstable and create a train of submerged offshore migrating vortices with shorter length scales and longer time scales than the incident waves, as shown by Matsunaga, Takehara & Awaya (1988, 1994). These vortices rotate about horizontal axes parallel to the shoreline. Our larger-scale laboratory experiments show that an additional layer of vortices can exist over the water depth, with vortices near the water surface rotating in the same direction as the wave-induced water particle trajectories, while those located at about mid-depth rotate in the opposite direction.A theoretical and numerical analysis shows that these vortices are due to instabilities of the undertow. Far offshore of the surf zone, the vortex trains decay because the velocity profile for the undertow becomes linear over depth, hence neutrally stable to any disturbances.

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