Numerical modeling of Reynolds scale effects for filling/emptying system of Panama Canal locks

Badano, Nicolás D.; Menéndez, Ángel N.

doi:10.1016/j.wse.2021.03.006

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…There are many types of lock filling and emptying systems [21], the geometric structure is complex, and the shape is ever-changing. Physical model tests [22][23][24][25] and three-dimensional turbulence numerical simulation [26][27][28][29][30] are widely used in hydraulics research for ship locks. However, the research has focused on specific projects; therefore, it has engineering practicability but poor universality.…”

Section: Introductionmentioning

confidence: 99%

Effect of Parameters of Ditch Geometry on the Uniformity of Water Filling in Ship Lock Chambers

Hu,

Li,

Zhu

2024

JMSE

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The design of ditch structures in ship locks has an important influence on reducing water flow energy, improving the uniformity of water filling in lock chambers, and reducing the force acting on mooring ships. Existing studies on the mechanisms of flow fields and mooring conditions under the influence of geometric structural changes in ditches are insufficient, and research is limited by the complexity of the problem. Based on OpenFOAM v8, a numerical simulation of the flow structure in a lock chamber was carried out. Taking into account the ditch width, ditch depth, and sill height of the side wall as the research variables, the influence of structural changes in four single ditches on the uniformity of water filling in the lock chamber is systematically discussed. The results show that under a complex boundary constraint, the flow is diffuse in the ditch and the lock chamber, and the filling of the lock chamber is not uniform. The uniformity of water filling is closely related to the arrangement of the ditch geometry. Through the comprehensive analysis of multiple factors, some parameter thresholds were obtained to provide theoretical guidance for ditch design. It is hoped that through improved design, allowing an increase in the uniformity of water filling, the lock chamber will reach a relatively optimal state.

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Section: Introductionmentioning

confidence: 99%

Effect of Parameters of Ditch Geometry on the Uniformity of Water Filling in Ship Lock Chambers

Hu,

Li,

Zhu

2024

JMSE

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“…In previous studies, the three-dimensional model was established to calculate the hydraulic characteristic value for the filling and emptying of navigation structures with water [12][13][14][15]. However, the scale of the intermediate channel was significantly larger than that of the ship lock, making it difficult to create a three-dimensional mathematical model with both high quality and efficiency.…”

Section: Introductionmentioning

confidence: 99%

Study of Navigable Flow Conditions in the Intermediate Channel of Decentralized Cascade Locks

Mei,

An,

et al. 2023

Water

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In this study, the effects of the different conveyance modes of the intermediate channel in decentralized cascade locks on navigation flow conditions were investigated. A new hybrid numerical simulation method was established to evaluate navigable flow conditions in intermediate channels at different water conveyance modes. This hybrid numerical simulation method was reliably compared by physical modeling tests. We used the 33.73 m class high-head intermediate channel filled with water as a study case. The study used the maximum water surface slope and maximum flow velocity as evaluation indexes for navigable flow conditions. The results showed that the navigable flow conditions of the centralized water conveyance mode were worse compared to the decentralized water conveyance mode in the intermediate channel. Especially in the upstream region of the intermediate channel with a centralized outflow, the navigable flow conditions were exceptionally harsh. We recommend the decentralized outflow mode in the high-head intermediate channel. This study provides an effective numerical simulation method for optimizing the water conveyance mode of the high-head intermediate channel of decentralized cascade locks and saving project investment.

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Numerical simulation of flow over a coastal embankment and validation of the nappe flow impinging jet

Dissanayaka

Tanaka

Hasan

2023

Model. Earth Syst. Environ.

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Numerical modeling of Reynolds scale effects for filling/emptying system of Panama Canal locks

Cited by 5 publications

References 15 publications

Effect of Parameters of Ditch Geometry on the Uniformity of Water Filling in Ship Lock Chambers

Effect of Parameters of Ditch Geometry on the Uniformity of Water Filling in Ship Lock Chambers

Study of Navigable Flow Conditions in the Intermediate Channel of Decentralized Cascade Locks

Numerical simulation of flow over a coastal embankment and validation of the nappe flow impinging jet

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