Numerical Modelling of Hydrodynamic Impact of Tsunami on Coastal Structures in the Presence of Curved Sea Wall

2019 ◽  
pp. 547-558
Author(s):  
Aditya Gupta ◽  
Manasa R. Behera ◽  
Amin Heidarpour
Keyword(s):  
Numerical Modelling ◽  
Coastal Structures ◽  
Hydrodynamic Impact ◽  
Sea Wall

scholarly journals VERTICAL SEA WALL CREST MODIFICATIONS FOR OVERTOPPING

2018 ◽  
pp. 71
Author(s):  
Dogan Kisacik ◽  
Gulizar Ozyurt Tarakcioglu ◽  
Cuneyt Baykal ◽  
Gokhan Kaboglu
Keyword(s):  
Urban Areas ◽  
Vertical Wall ◽  
Breaking Wave ◽  
Limited Information ◽  
Coastal Structures ◽  
Wave Overtopping ◽  
Wave Basin ◽  
First Results ◽  
Set Up ◽  
Sea Wall

Crest modifications such as a storm wall, parapet or a bullnose are widely used to reduce the wave overtopping over coastal structures where spatial and visual demands restrict the crest heights, especially in urban areas. Although reduction factors of these modifications have been studied for sloped structures in EurOtop Manual (2016), there is limited information regarding the vertical structures. This paper presents the experimental set-up and first results of wave overtopping tests for a vertical wall with several different super structure types: a) seaward storm wall, b) sloping promenade, c) landward storm wall, d) stilling wave basin (SWB), e) seaward storm wall with parapet, f) landward storm wall on the horizontal promenade with parapet, g) landward storm wall with parapet, h) stilling wave basin (SWB) with parapet, under breaking wave conditions. The SWB is made up of a seaward storm wall (may be a double shifted rows) , a sloping promenade (basin) and a landward storm wall. The seaward storm wall is partially permeable to allow the evacuation of the water in the basin.

scholarly journals Modelling of Tsunami Forces on Coastal Structures: a Review

2018 ◽  
Vol 7 (4.35) ◽  
pp. 312
Author(s):  
N. Govindasamy ◽  
N.H. Mardi ◽  
M.A. Malek
Keyword(s):  
Numerical Modelling ◽  
Physical Modelling ◽  
Design Guidelines ◽  
Coastal Structures ◽  
Structural Behaviour ◽  
Environmental Disaster ◽  
Current Design ◽  
High Current Velocity ◽  
The Stability ◽  
The Impact

This paper reviews methods applicable to assess the impact of tsunami forces on coastal structures. Countries affected by tsunamis have proven that this environmental disaster has costed billions of losses, such as the event occurred during year 2004 Andaman tsunami. Therefore, there is a need to assess the structural behaviour upon the impact of tsunami forces in order to minimize the damages and to ensure that coastal structures are able to sustain loading from high current-velocity waves. Currently in practice, there are two approaches of accessing the impacts of tsunami on structures namely physical modelling and experiment or numerical modelling and simulation. Numerical modelling methods are expected to produce acceptable analysis on the stability and condition of structures subjected to tsunami loadings since it incorporates several important parameters which are not implemented in physical modelling. The result from this study is expected to prompt engineers and relevant authorities to revise the current design guidelines on coastal structures which could sustain possible tsunami event in the future.

scholarly journals METHOD OF ANALYSIS OF RANDOM WAVE EXPERIMENTS WITH REFLECTING COASTAL STRUCTURES

1980 ◽  
Vol 1 (17) ◽  
pp. 11 ◽  
Author(s):  
Pierre Gaillard ◽  
Michel Gauthier ◽  
Forrest Holly
Keyword(s):  
Laboratory Investigation ◽  
Laboratory Experiments ◽  
Random Wave ◽  
Wave Spectra ◽  
Coastal Structures ◽  
Reflected Wave ◽  
Field Investigations ◽  
Rubble Mound ◽  
Method Of Evaluation ◽  
Sea Wall

A method of evaluation of the incident and reflected wave spectra in laboratory experiments or field investigations, based on the analysis of wave records obtained with a three-gauge array, is presented. Results of a laboratory investigation with a rubble-mound breakwater and with a special type of sea-wall (ARC system) are given to illustrate the applications of the method.

scholarly journals EUROTOP OVERTOPPING GUIDANCE APPLIED IN A TOOL TO THE LARGE VARIETY OF COASTAL PROTECTIONS AT ILE DE RÉ

2018 ◽  
pp. 33
Author(s):  
Jérémy Dugor ◽  
Jentsje Van der Meer ◽  
Julien Baills ◽  
Didier Rihouey
Keyword(s):  
Numerical Modelling ◽  
Natural Disasters ◽  
Major Event ◽  
Coastal Structures ◽  
Important Work ◽  
Wave Overtopping ◽  
Coastal Structure ◽  
Structure Characteristics ◽  
Structure Monitoring ◽  
Storm Impact

Ile de Ré is a low-lying island located on the western edge of France. The extreme storm Xynthia (February 2010), was one of the most destructive natural disasters in this area, causing severe damages and breaches on coastal protections and one third of the total area of the island was flooded. Storm impact feedback showed that wave overtopping and/or overflow was responsible for more than 60 failures or breaches. From this major event, an important work was undertaken to improve the 100 km of coastal structures. This paper describes the development of a tool, partly based on numerical modelling, that will prioritise coastal structure monitoring by forecasting overtopping discharges and volumes on the different exposed dikes on Ile de Ré, regarding different storm parameters and structure characteristics. This tool will supply helpful information to manage the maintenance operations and improvements of this important linear of heterogeneous and sometimes old coastal protections.

Numerical modelling of flow around coastal structures and scour prediction

2002 ◽  
Vol 29 (4) ◽  
pp. 417-444 ◽  
Author(s):  
K Jyothi ◽  
J.S Mani ◽  
M.R Pranesh
Keyword(s):  
Numerical Modelling ◽  
Coastal Structures
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