scholarly journals THE NUMERICAL ANALYSIS OF WAVE OVERTOPPING AND WATER OVERFLOW OVER THE COASTAL LEVEE IN THE STORM CONDITION

2014 ◽  
Vol 1 (34) ◽  
pp. 9
Author(s):  
Takeshi Suzuki ◽  
Hidenori Shibaki ◽  
Katsuyuki Suzuyama
Keyword(s):  
Numerical Analysis ◽  
Wave Overtopping ◽  
Storm Condition ◽  
Water Overflow

scholarly journals Numerical Study on the Hydrologic Characteristic of Permeable Friction Course Pavement

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 843
Author(s):  
Tan Hung Nguyen ◽  
Jaehun Ahn
Keyword(s):  
Numerical Analysis ◽  
Water Flow ◽  
Rainfall Intensity ◽  
Numerical Study ◽  
Geometric Design ◽  
Porous Asphalt ◽  
Pavement Surface ◽  
Design Charts ◽  
Hydrologic Characteristic ◽  
Water Overflow

The hydrologic characteristic of a permeable friction course (PFC) pavement is dependent on the rainfall intensity, pavement geometric design, and porous asphalt properties. Herein, the hydrologic characteristic of PFC pavements of various lengths and slopes was determined via numerical analysis. A series of analyses was conducted using length values of 10, 15, 20, and 30 m and slope values of 0.5%, 2%, 4%, 6%, and 8% for the equivalent water flow path. The PFC pavements were simulated for various values of rainfall intensity, which ranged from 10 to 120 mm/h, to determine the time taken for water to flow over the PFC pavement surface. The results show that the time for water overflow decreased when the pavement length or rainfall intensity increased, and it increased when the slope increased. Finally, a series of design charts was developed to determine the time taken for water to flow over the PFC pavement surface for given rainfall intensities. Since this study was conducted based on numerical analysis, further studies are recommended to verify experimentally the results presented.

scholarly journals DEVELOPMENT OF WAVE OVERTOPPING MODEL INCORPORATING WATER OVERFLOW FOR VERTICAL WALLS

2018 ◽  
pp. 3
Author(s):  
Yoji Tanaka ◽  
Katsuyuki Suzuyama ◽  
Naoto Higuchi ◽  
Hidenori Shibaki
Keyword(s):  
Experimental Data ◽  
Storm Surge ◽  
Vof Method ◽  
New Wave ◽  
Wave Overtopping ◽  
Hydraulic Experiment ◽  
Data Provider ◽  
Shallow Area ◽  
Vertical Walls ◽  
Water Overflow

In a situation where water overflow occurs on the seawalls due to a storm surge, generally it is high waves that cause wave overtopping. However, it is common that overflow and overtopping are modeled as separate phenomena, in a situation where both phenomena occur at the same time, the amount of water exceeding the seawalls may not be evaluated correctly. The purpose of this research is to develop a new wave overtopping model including the water overflow for vertical seawalls. The new overtopping model improved the overtopping model of Goda (Goda, 2008: Goda08 model). Goda08 model was developed to adapt for various seawall forms. Goda (2008) insisted it was more accurate than EurOtop model. Nonetheless, Goda08 model has a problem of overestimation in shallow area. Therefore, we tuned the parameters again. It is difficult to reproduce the situation where the overtopping and overflow occur at the same time in a hydraulic experiment. Consequently, CADMAS-SURF which is based on the 2-dimensional non-compressive fluid using the VOF method was used as an experimental data provider for comparative verification of the model.

Numerical analysis of wave overtopping of rubble mound breakwaters

2008 ◽  
Vol 55 (1) ◽  
pp. 47-62 ◽  
Author(s):  
Inigo J. Losada ◽  
Javier L. Lara ◽  
Raul Guanche ◽  
Jose M. Gonzalez-Ondina
Keyword(s):  
Numerical Analysis ◽  
Wave Overtopping ◽  
Rubble Mound ◽  
Rubble Mound Breakwaters
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