NUMERICAL SIMULATION OF TIDAL CURRENT FIELD IN OFFSHORE AREA WITH MANY ISLANDS AND TIDAL CHANNELS

2009 ◽  
Author(s):  
Shu-hua ZUO ◽  
Bei LI ◽  
Zheng ZHANG
Keyword(s):  
Numerical Simulation ◽  
Tidal Current ◽  
Tidal Channels ◽  
Current Field ◽  
Offshore Area

scholarly journals Numerical simulation study on diffusion of temperature drainage in wide and shallow water in a refinery integration project

2020 ◽  
Vol 206 ◽  
pp. 03008
Author(s):  
LI Yajuan ◽  
Mao Tianyu ◽  
Zhu Yuxin
Keyword(s):  
Numerical Simulation ◽  
Shallow Water ◽  
Temperature Rise ◽  
Tidal Current ◽  
Water Area ◽  
Hydrodynamic Condition ◽  
Two Dimensional ◽  
Current Field ◽  
Convection Diffusion ◽  
Integration Project

The numerical simulation of tidal current field in wide and shallow waters (Naochao River) of Caofeidian industrial zone is carried out by using a two-dimensional hydrodynamic model, taking the discharge problem of temperature and drainage in a refinery integration project as an example. Taking the tidal current field as the hydrodynamic condition of the temperature drainage transport simulation, the concentration distribution of the temperature drainage in the receiving water area was predicted by using the two-dimensional convection-diffusion model of the temperature drainage, and the change of the temperature rise line and its influence were analyzed. The results showed that the water area affected by temperature rise in winter and summer were 0.28km2 and 0.35km2, respectively, when the project was discharged separately. The existing temperature displacement of China Resources Power Plant in the superposition area is: 19.1km2 in winter and 1.64km2 in summer under the influence of temperature rise. By analyzing the influence degree of wide and shallow water (Naochao River) drainage outlet on temperature rise, the conclusion that the layout of drainage outlet should be further optimized is given. conclusion that the layout of drainage outlet should be further optimized is given.

Research on Applied Technology and Tidal Current Control with Numerical Simulation of Pulandian Bay

2014 ◽  
Vol 886 ◽  
pp. 281-284 ◽  
Author(s):  
Hao Chen ◽  
Fu Li Chen ◽  
Yong Ying Zhu ◽  
Li Ming Zhu
Keyword(s):  
Numerical Simulation ◽  
Tidal Current ◽  
Flow Model ◽  
Scientific Basis ◽  
Current Control ◽  
Liaoning Province ◽  
Current Field ◽  
Urban Core ◽  
Applied Technology ◽  
Sea Area

As the new urban core area and the center of Dalian, Pulandian Bay shoulder the mission of the coastal economic growth in Liaoning province. In view of the present urgent pollution situation in the coastal waters , the MIKE 21 Flow Model is used to build the two-dimensional tidal current field and replay the basic situation and the trend of variation of the bay. Model validation results show that the calculated values agree well with the measurement values, and the model can reflect the tidal current field of Pulandian Bay accurately. The numerical simulation results provide the scientific basis and basic data for the sea area construction and environmental protection.

scholarly journals Tidal Current Energy Resource Distribution in Korea

Energies ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 4380 ◽  
Author(s):  
Su-jin Hwang ◽  
Chul H. Jo
Keyword(s):  
Numerical Simulation ◽  
Observational Data ◽  
Tidal Current ◽  
Resource Assessment ◽  
Coastal Areas ◽  
Energy Resources ◽  
Development Plan ◽  
The West ◽  
Tidal Current Energy ◽  
Current Energy

Korea is a very well-known country for having abundant tidal current energy resources. There are many attractive coastal areas for the tidal current power that have very strong currents due to the high tidal range and the acceleration through the narrow channels between islands in the west and south coasts of the Korean peninsula. Recently, the Korean government announced a plan that aims to increase the portion of electricity generated from renewable energy to 20% by 2030. Korea has abundant tidal current energy resources; however, as reliable resource assessment results of tidal current energy are not sufficient, the portion of tidal current power is very small in the plan. Therefore, a reliable resource assessment should be conducted in order to provide a basis for the development plan. This paper describes the resource assessment of tidal current energy in Korea based on the observational data provided by KHOA (Korean Hydrographic and Oceanographic Agency) and numerical simulation of water circulation. As the observational data were unable to present the detailed distribution of the complicated tidal current between islands, numerical simulation of water circulation was used to describe the detailed distribution of tidal current in Incheon-Gyeonggi and Jeollanam-do, where the tidal energy potentials are abundant. The west and south coastal areas of Korea were divided into seven regions according to the administrative district, and the theoretical tidal current potential was calculated using average power intercepted. The results of this research can provide the insight of the tidal current energy development plan in Korea.

Study of Storm Surge Numerical Simulation in the Bohai Sea

2014 ◽  
Vol 989-994 ◽  
pp. 2288-2291 ◽  
Author(s):  
Yong Qiang Zhang ◽  
Qian Lan Leng ◽  
Ze Jian Hu ◽  
Zi Chen Zhu ◽  
Wan Jun Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Spatial Distribution ◽  
Water Level ◽  
Storm Surge ◽  
Bohai Sea ◽  
Current Field ◽  
Extreme Water Level ◽  
The Bohai Sea ◽  
Astronomical Tide ◽  
Significant Difference

In this paper, a numerical model of the coupling between astronomical tide and storm surge based on hydraulic model for estuary and coast (ECOM) is confirmed to be suitable for simulation of stormsurge in the Bohai Sea. The spatial distribution of extreme water level and storm current field caused by typhoons in October 2003 are simulated.It shows that extreme water level in deep water are smaller than shallow water and the spatial distribution of extreme water level is influenced by topography.Flow filed in Bohai Sea waters takes on an fluctuation in flow field, compensatory flow and other obvious features during storm surge, compared storm surge with astronomical tide, which is a significant difference in flow filed.

Numerical Simulation of Maximum Scour Depth of the Riverbed above a Subway Tunnel Crossing the Tidal River

2012 ◽  
Vol 256-259 ◽  
pp. 2548-2551 ◽  
Author(s):  
Jun Chen ◽  
Ai Feng Huang ◽  
Hong Chen ◽  
Yong Tao Li
Keyword(s):  
Numerical Simulation ◽  
Cross Section ◽  
Return Period ◽  
Tidal Current ◽  
Tidal River ◽  
Scour Depth ◽  
Two Dimensional ◽  
Subway Tunnel ◽  
Sediment Transportation ◽  
Hydrologic Condition

To ensure the secure buried depth of the subway tunnel which was routed underneath the Fenghuahe River, a two-dimensional tidal current and sediment transportation model was established to simulate the maximum scour depth of the riverbed. The conclusions were shown as follows: the most disadvantageous hydrologic condition was a combination of the 200-year return period flood in the Fenghuahe River and the 5-year highest tide in the Yonghe River. The maximum scour depth of the riverbed above the subway tunnel was 1.19 m and the lowest elevation of the riverbed cross-section was -8.56m. The results could provide technical support for the safety of subway design.

Numerical Modeling of the Tidal Current Movement of the Baima Port, China

2014 ◽  
Vol 675-677 ◽  
pp. 806-810 ◽  
Author(s):  
Xin Li ◽  
Ming Xiao Xie
Keyword(s):  
Numerical Modeling ◽  
Water Depth ◽  
Hydrodynamic Model ◽  
Tidal Current ◽  
Software Package ◽  
Current Field ◽  
Sediment Transportation ◽  
Current Coupling ◽  
Current Movement ◽  
D Wave

The Sanduao Bay is the bay with many of islands where the coastline is very winding with complex hydrodynamics and sediment transportation. Using a 2-D wave-current coupling hydrodynamic model of the Mike21 software package, the hydrodynamics condition on the Pingang Operation Area of Baima Port in the Sanduao Bay is simulatated. The results show that the current field in the berth is smooth that is beneficial to maintenance of water depth and reduction of siltation in berth. And the velocity in reclamation and dredging area is reduced less than 0.05m/s. the reclamation near the coastline and dredging in the berth make the velocity varied and the varying range is between 0.3m/s and 0.4m/s.

Numerical simulation of tidal current around Keelung Sill off Northern Taiwan

2010 ◽  
Author(s):  
Hsien-Wen Li ◽  
Yao-Tsai Lo ◽  
Cheng-Han Tsai ◽  
Nan-Jung Kuo ◽  
Chung-Ru Ho ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Tidal Current ◽  
Northern Taiwan
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