scholarly journals Comparison of the Shallow-Water Design Wave Height on the Korean East Coast Based on Wave Observation Data and Numerical Simulation

2016 ◽  
Vol 28 (5) ◽  
pp. 292-302
Author(s):  
Weon-Mu Jeong ◽  
Hyukjin Choi ◽  
Hong-Yeon Cho ◽  
Sang-Ho Oh
Keyword(s):  
Numerical Simulation ◽  
Shallow Water ◽  
Wave Height ◽  
East Coast ◽  
Observation Data ◽  
Design Wave Height ◽  
Wave Observation

scholarly journals ESTIMATION OF BOUND AND RELEASED INFRAGRAVITY WAVES BASED ON WAVE OBSERVATION AND NUMERICAL SIMULATION IN SHALLOW WATER

2018 ◽  
pp. 37
Author(s):  
Katsuya Hirayama ◽  
Hiroaki Kashima ◽  
Yoshiyuki Uno
Keyword(s):  
Numerical Simulation ◽  
Shallow Water ◽  
Wave Spectrum ◽  
Short Wave ◽  
Wave Transformation ◽  
Boussinesq Model ◽  
Release Process ◽  
Infragravity Waves ◽  
Standard Spectrum ◽  
Wave Observation

It is mentioned that observed infragravity waves consist of bound waves propagating with short-wave groups, released waves due to reduction of short crest waves and free waves existing in a field. Though it is difficult to distinguish among them, a standard spectrum for infragravity waves is defined by using a relation to a wind wave spectrum. In this study, a comprehensive definition of standard spectrum is newly proposed to estimate infragravity wave heights with the relation between the ratio of wave height and the ursell number of observed wave property, represented by selected data of wave observation in shallow water. Moreover, the release process of bound waves at a harbor entrance is reproduced in numerical simulation using a Boussinesq model for short-wave transformation. These results are verified by comparison to infragravity waves observed at outside/inside of a harbor for a month.

scholarly journals On the Separation Period Discriminating Gravity and Infragravity Waves off Gyeongpo Beach, Korea

2020 ◽  
Vol 8 (3) ◽  
pp. 167 ◽  
Author(s):  
Jung-Eun Oh ◽  
Weon-Mu Jeong ◽  
Yeon S. Chang ◽  
Sang-Ho Oh
Keyword(s):  
East Coast ◽  
Fundamental Principle ◽  
Empirical Method ◽  
Suggested Method ◽  
New Method ◽  
Observation Data ◽  
Coastal Zones ◽  
Infragravity Waves ◽  
Significant Wave ◽  
Wave Observation

Although there have been a number of studies investigating fundamental characteristics of infragravity waves in coastal zones, a proper method of deciding period ranges that are associated with gravity or infragravity waves remains uncertain. In this study, we proposed an empirical method of separating spectral energies of gravity and infragravity waves by analyzing the wave observation data acquired off Gyeongpo beach on the Korean east coast. The fundamental principle of the suggested method is to represent the separation period discriminating gravity and infragravity waves as a function of the significant wave period, rather than a fixed value that was conventionally applied in previous studies. As a consequence of using the new method, the relationships between heights and periods of gravity and infragravity waves were more clearly identified.

NUMERICAL SIMULATION OF TWO-PHASES FLOW ON PUMPS INLET SYSTEM FOR SHALLOW WATER

2019 ◽  
Author(s):  
Livio Sebastián Maglione ◽  
Guillermo Muschiatto ◽  
Raúl Alberto DEAN
Keyword(s):  
Numerical Simulation ◽  
Shallow Water ◽  
Inlet System ◽  
Two Phases ◽  
Two Phases Flow

scholarly journals Wave Force Characteristics of Large-Sized Offshore Wind Support Structures to Sea Levels and Wave Conditions

2019 ◽  
Vol 9 (9) ◽  
pp. 1855
Author(s):  
Youn-Ju Jeong ◽  
Min-Su Park ◽  
Jeongsoo Kim ◽  
Sung-Hoon Song
Keyword(s):  
Shallow Water ◽  
Wave Height ◽  
Wave Force ◽  
Diffraction Effect ◽  
Support Structures ◽  
Sea Levels ◽  
Irregular Wave ◽  
Long Period ◽  
Short Period ◽  
Period Wave

This paper presents the results of wave force tests conducted on three types of offshore support structures considering eight waves and three sea levels to investigate the corresponding wave forces. As a result of this study, it is found that the occurrence of shoaling in shallow water induces a significant increase of the wave force. Most of the test models at the shallow water undergo a nonlinear increase of the wave force with higher wave height increasing. In addition, the larger the diameter of the support structure within the range of this study, the larger the diffraction effect is, and the increase in wave force due to shoaling is suppressed. Under an irregular wave at the shallow water, the wave force to the long-period wave tends to be slightly higher than that of the short period wave since the higher wave height component included in the irregular wave has an influence on the shoaling. In addition, it is found that the influence of shoaling under irregular wave becomes more apparent in the long period.

Estimation of design wave height using empirical simulation technique

2013 ◽  
Vol 61 ◽  
pp. 39-49 ◽  
Author(s):  
Kyung-Duck Suh ◽  
Munki Kim ◽  
Jeho Chun
Keyword(s):  
Wave Height ◽  
Simulation Technique ◽  
Design Wave Height

RECENT DEVELOPMENTS IN THE NUMERICAL SIMULATION OF SHALLOW WATER EQUATIONS II: TEMPORAL DISCRETIZATION

1994 ◽  
Vol 04 (04) ◽  
pp. 533-556 ◽  
Author(s):  
V. AGOSHKOV ◽  
E. OVCHINNIKOV ◽  
A. QUARTERONI ◽  
F. SALERI
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Finite Difference ◽  
Shallow Water ◽  
Shallow Water Equations ◽  
Numerical Results ◽  
Finite Difference Approximation ◽  
Difference Approximation ◽  
Recent Developments ◽  
Numerical Approaches

This paper deals with time-advancing schemes for shallow water equations. We review some of the existing numerical approaches, propose new schemes and investigate their stability. We present numerical results obtained using the time-advancing schemes proposed, with finite element and finite difference approximation in space variables.

Shallow Water Wave Height Parameters

1984 ◽  
Vol 110 (2) ◽  
pp. 293-299 ◽  
Author(s):  
Edward F. Thompson ◽  
C. Linwood Vincent
Keyword(s):  
Shallow Water ◽  
Wave Height ◽  
Water Wave ◽  
Shallow Water Wave
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