A Numerical Model Study on Ice Boom in a Coastal Lake

Kolerski, Tomasz; Shen, Hung Tao; Kioka, Shinji

doi:10.2112/jcoastres-d-12-00236.1

Cited by 12 publications

(9 citation statements)

References 10 publications

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“…The area of the structural, rectangular numerical mesh applied in the simulation is equal to 698,960,000 m 2 . If the water layer of a thickness of 0.6 m is considered, the total volume of water in the lagoon is equal to 419,376,000 m 3 . This value is close to the volume of inflow and outflow during the filling and emptying processes.…”

Section: Resultsmentioning

confidence: 99%

“…These semi-closed water areas are very calm and have the same salinity as the open sea, making them ideal for aquaculture. Some lagoons have been extensively converted for brackish-water fish ponds (e.g., the lagoons south of Madras), shellfish aquaculture (i.e., lakes on Hokkaido Island [3]), or cage culture, which is widespread around the world [4]. Changing climatic conditions [5,6] over the next century are likely to increase marine influences in lagoons, by the action of wind and storm surges.…”

Section: Introductionmentioning

confidence: 99%

“…The total area of the lagoon measures 838 km 2 , of which 472.5 km 2 belongs to Russia. The shore line is 270 km long, with a water volume of 2.3 km 3 [8]. Unsteady flows in the Vistula Lagoon are usually caused by changes of the sea level in the Gulf of Gdańsk and by wind action on the water surface of the lagoon.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of the Artificial Strait in the Vistula Spit on the Hydrodynamics of the Vistula Lagoon (Baltic Sea)

Szydłowski

Kolerski

Zima

2019

Water

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In the Vistula Lagoon, storm surges are induced by variable sea levels in the Gulf of Gdańsk and wind action. The rising of the water level in the southern part of the basin, exceeding 1.0 m above mean sea level, can be dangerous for the lowland area of Żuławy Elbląskie, causing the inundation of the polders adjacent to the lagoon. One of the potential possibilities to limit the flood risk is to decrease the water level in the lagoon during strong storm surges by opening an artificial canal to join the lagoon with the Gulf of Gdańsk. The decision to build a new strait in the Vistula Spit was made in 2017. In order to analyze the impact of the artificial connection between the sea and the lagoon during periods of high water stages in the southern part the lagoon, mathematical modelling of the hydrodynamics of the Vistula Lagoon is required. This paper presents the shallow water equations (SWEs) model adapted to simulate storm surges driven by the wind and sea tides, and the numerical results obtained for the present (without the new strait) and future (with the new strait) configuration of the Vistula Lagoon.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact of the Artificial Strait in the Vistula Spit on the Hydrodynamics of the Vistula Lagoon (Baltic Sea)

Szydłowski

Kolerski

Zima

2019

Water

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“…Therefore, it is equipped with unique advantages of tracking various free surfaces with large deformation and it provides a very promising technique to study the spillway hydraulics. Since its early application in free surface flows [5], SPH has been widely used in the coastal hydraulics [6,7], fluid-structure interactions [8][9][10], multi-phase flows [11,12], dam-break flows [13][14][15], porous flows [16][17][18], and river ice dynamics [19][20][21]. It was found that the SPH method meets with some limitations for the flow with high Reynolds numbers in dam break application but there is no information available on the threshold Re value.…”

Section: Introductionmentioning

confidence: 99%

SPHysics Simulation of Experimental Spillway Hydraulics

Ren

Wang

et al. 2017

Water

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Abstract:In this paper, we use the parallel open source code parallelSPHysics based on the weakly compressible Smoothed Particle Hydrodynamics (WCSPH) approach to study a spillway flow over stepped stairs. SPH is a robust mesh-free particle modelling technique and has great potential in treating the free surfaces in spillway hydraulics. A laboratory experiment is carried out for the different flow discharges and spillway step geometries. The physical model is constructed from a prototype reservoir dam in the practical field. During the experiment, flow discharge over the weir crest, free surface, velocity and pressure profiles along the spillway are measured. In the present SPH study, a straightforward push-paddle model is used to generate the steady inflow discharge in front of the weir. The parallelSPHysics model is first validated by a documented benchmark case of skimming flow over a stepped spillway. Subsequently, it is used to reproduce a laboratory experiment based on a prototype hydraulic dam project located in Qinghai Province, China. The detailed comparisons are made on the pressure profiles on the steps between the SPH results and experimental data. The energy dissipation features of the flows under different flow conditions are also discussed. It is shown that the pressure on the horizontal face of the steps demonstrates an S-shape, while on the vertical face it is negative on the upper part and positive on the lower part. The energy dissipation efficiency of the spillway could reach nearly 80%.

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“…And the empirical method for calculating ice resistance is presented. A two-dimensional hydro-ice dynamic model was modified to allow for the treatment of ice-boom interaction with the effect of tidal current (Kolerski, Shen, and Kioka, 2013). Wang (2001) proposed contacting, crushing and bending ice failure model to simulate the interaction between cone and ice, and the method is applied to solve the effect between ice and ocean's platform leg.…”

Section: Introductionmentioning

confidence: 99%

A Direct Assessment Method for Structure Strength of Icebreaker Based on Numerical Simulation

Wang

Ren

et al. 2015

Journal of Coastal Research

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Ren, H.; Li, H., and Wang, J., 2015. A direct assessment method for structure strength of icebreaker based on numerical simulation. 0749-0208.Considering the changes of ice stress caused by strain rate of ice, a finite element method is presented to assess structure strength of icebreaker and ice failure model is based on multi-surface criterion. This paper discusses both principle of ice and ship model and presents results of structure stress in ice environment. Secondary development technology of finite element software is applied to simulate ice failure. Phenomena such as ice failure model and velocity changes of icebreaker are shown in simulation results, which show that the simulated ice loads are in good agreement with the literature results. The method presented in this paper can reflect the stress distribution of the structure and the numerical model can be applied to predict ice load and structure strength. ADDITIONAL INDEX WORDS:FEM method, structure strength, numerical simulation, ice failure model, ice load, icebreaker.

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A Numerical Model Study on Ice Boom in a Coastal Lake

Cited by 12 publications

References 10 publications

Impact of the Artificial Strait in the Vistula Spit on the Hydrodynamics of the Vistula Lagoon (Baltic Sea)

Impact of the Artificial Strait in the Vistula Spit on the Hydrodynamics of the Vistula Lagoon (Baltic Sea)

SPHysics Simulation of Experimental Spillway Hydraulics

A Direct Assessment Method for Structure Strength of Icebreaker Based on Numerical Simulation

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