Discussion Article on Coastal Engineering-Problems, Research Directions and Needs of Cooperation

2021 ◽  
pp. 35-38
Author(s):  
Subramaniam Neelamani
Keyword(s):  
Coastal Engineering ◽  
Research Directions ◽  
Discussion Article ◽  
Engineering Problems

Smoothed Particle Hydrodynamics for coastal engineering problems

2013 ◽  
Vol 120 ◽  
pp. 96-106 ◽  
Author(s):  
A. Barreiro ◽  
A.J.C. Crespo ◽  
J.M. Domínguez ◽  
M. Gómez-Gesteira
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Coastal Engineering ◽  
Engineering Problems ◽  
Particle Hydrodynamics ◽  
Smoothed Particle

scholarly journals INCIPIENT MOTION OF PARTICLES UNDER OSCILLATORY FLOW

1982 ◽  
Vol 1 (18) ◽  
pp. 94
Author(s):  
L. Lenhoff
Keyword(s):  
Reynolds Number ◽  
Sediment Transport ◽  
Oscillatory Flow ◽  
Coastal Engineering ◽  
Incipient Motion ◽  
Flow Data ◽  
National Research Institute ◽  
Predictive Equations ◽  
Engineering Problems ◽  
Coastal Sediment Transport

This paper is aimed at the establishment of a generally applicable criterion for the onset of grain motion under the influence of oscillatory flow. Data from previous studies are used in a dimensional analysis and an empirically derived relationship between the dimensionless parameters R* (shear Reynolds number) and D* (dimensionless grain parameter) is proposed as a criterion to be used in coastal engineering problems. This study forms part of a larger programme by the Sediment Dynamics Division of the National Research Institute for Oceanology in Stellenbosch, RSA, which is aimed at the reevaluation and updating of the input parameters and relationships for the predictive equations for coastal sediment transport.

scholarly journals DYNAMIC WAVE SETUP

1988 ◽  
Vol 1 (21) ◽  
pp. 74 ◽  
Author(s):  
Jen-Men Lo
Keyword(s):  
Wave Spectrum ◽  
Low Frequency ◽  
Storm Surges ◽  
Coastal Engineering ◽  
Radiation Stress ◽  
Steady Wave ◽  
Wave Setup ◽  
Engineering Problems ◽  
Stress Term ◽  
Dynamic Wave

The wave setup for a given wave spectrum was re-evaluated with the radiation stress term including the low-frequency terms. This setup which is referred to here as "dynamic wave setup", was compared with the steady setup, which is generated by including only the non-periodic radiation stress terms. The results of the study showed that the dynamic wave setup is greater than the steady wave setup, sometimes almost double its value. Therefore, the dynamic wave setup is important for engineering applications, particularly in the study of storm surges and coastal engineering problems.

scholarly journals Improved numerical wave generation for modelling ocean and coastal engineering problems

2018 ◽  
Vol 152 ◽  
pp. 257-272 ◽  
Author(s):  
Pedro J. Martínez-Ferrer ◽  
Ling Qian ◽  
Zhihua Ma ◽  
Derek M. Causon ◽  
Clive G. Mingham
Keyword(s):  
Wave Generation ◽  
Coastal Engineering ◽  
Engineering Problems ◽  
Numerical Wave

scholarly journals THEORETICAL AND EXPERIMENTAL STUDY OF THE DAM-BREAK WAVE TIP REGION

2018 ◽  
pp. 22
Author(s):  
Haijiang Liu ◽  
Xiaohu Deng
Keyword(s):  
Method Of Characteristics ◽  
Direct Relationship ◽  
Coastal Engineering ◽  
Dam Break ◽  
Measuring Instruments ◽  
Clear Understanding ◽  
Physical Test ◽  
Engineering Problems ◽  
Dam Break Flow ◽  
Tsunami Event

Dam-break flow has direct relationship with many coastal engineering problems, such as swash movement and tsunami event. Plenty of studies have been conducted on this topic. In terms of theoretical analysis, initiating from the classic Ritter’s solution, various approaches have been applied, e.g., the method of characteristics, the perturbation method, and the parametric substitution. As for the physical test, significant improvement has been achieved with the development of measuring instruments. Nevertheless, clear understanding on the hydrodynamic features of the wave tip region, where the bottom resistance and flow viscosity play important roles, is still far beyond enough.

SOME COASTAL ENGINEERING PROBLEMS IN INDIA

2011 ◽  
Vol 1 (6) ◽  
pp. 27
Author(s):  
D. V. Joglekar ◽  
C. V. Gole ◽  
A. S. Apte
Keyword(s):  
Wave Action ◽  
Coastal Engineering ◽  
The State ◽  
The Other ◽  
Indian Peninsula ◽  
Shore Line ◽  
Engineering Problems ◽  
Almost All

Near the southern tip of the Indian peninsula, the State of Kerala has a 400 miles long shore line running north from the Cape Camorin. Almost all along its length is one reach or the other, the coast has fine beaches which are continually subjected to erosion due to wave action. This process has been going on, no doubt, since the existence of the sub-continent, but it is only in recent years has there been an awakening of interest when property and plantation are being threatened, as the man-land ratio is getting dangerously high.

scholarly journals A HYBRID NUMERICAL MODEL FOR COASTAL ENGINEERING PROBLEMS

2014 ◽  
Vol 1 (34) ◽  
pp. 60 ◽  
Author(s):  
Corrado Altomare ◽  
Tomohiro Suzuki ◽  
Jose M. Dominguez ◽  
A.J.C. Crespo ◽  
Moncho Gomez-Gesteira ◽  
...  
Keyword(s):  
Numerical Model ◽  
Coastal Engineering ◽  
Engineering Problems

scholarly journals ARTIFICIAL RESORT BEACH PROTECTED BY OFFSHORE BREAKWATERS AND GROINS

1980 ◽  
Vol 1 (17) ◽  
pp. 121
Author(s):  
Shoji Sato ◽  
Norio Tanaka
Keyword(s):  
Local Governments ◽  
Central Government ◽  
Sea Water ◽  
Wave Action ◽  
Coastal Engineering ◽  
Sand Beach ◽  
Natural Sand ◽  
Engineering Problems ◽  
Recreation Area ◽  
Suitable Arrangement

In Japan, area of natural beaches has decreased in the vicinity of cities, towns and villages, in consequence of constructing ports and harbours, reclamating shore and beach, and building strom-surge prevention structures like sea dikes and sea walls. On the other hand, the demand of people for recreation area is increasing year by year with the improvement of living and economic conditions. Therefore, since several years ago, local governments have extensively been constructing artificial beaches and restoring eroded beaches on many places by the aid of the central government. Such artificial beaches, however, need large amount of natural sand, in spite of the deterioration of sand supply and the soaring of sand price. Moreover, local governments are able to get subsidiary payments of the central government for the construction of artificial sand beach, but not for replenishing sand lost by wave action after the completion of the construction works. Therefore, most artificial beaches in Japan are usually protected by groins and offshore breakwaters in order to retain artificially filled sand. But in summer when sea is in calm condition, pollutant produced by sea-bathing people or discharged from the land is likely to stagnate in the vicinity of the shoreline on account of such structures. From the above-mentioned, coastal engineering problems on construction and restoration of sand beach in Japan are: (1) suitable arrangement of offshore breakwaters and groins from standpoint of artificial beach protection (2) keeping the sea water of the beach clean (3) estimation of profile change of the artificial beach due to wave action after its construction. This paper presents the results of investigations conducted with the aim of solving the above coastal engineering problems related to artificial beach constructions at Suma and Ito beaches. The investigations are mainly conducted using model experiment.

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