Determining propeller scour near a quay wall

Yüksel, Yalçın; Tan, Remziye Ilayda; Çelikoğlu, Yeşim

doi:10.1016/j.oceaneng.2019.106331

Cited by 12 publications

(5 citation statements)

References 20 publications

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“…These structures are subjected to corrosion, 19 chloride attacks, 20 wave actions, 21 extreme weather events, [22][23][24] vessel impacts, 25 erosion, 26 and scouring. 27 The effects of deterioration may not always be apparent at the surface of a structure; thus, they might be easily overlooked during a visual inspection, compromising the integrity of the structure. For example, in case of pitting corrosion, the reduction in mass of the structure can be negligible, but the rate of deterioration of the structural integrity in a local region can be significant, resulting in an early catastrophic collapse.…”

Section: Issues and Concerns With Insmentioning

confidence: 99%

Structural health monitoring of inland navigation structures and ports: a review on developments and challenges

Negi

Kromanis

Dorée

et al. 2023

Structural Health Monitoring

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Inland navigation structures (INS) facilitate transportation of goods in rivers and canals. Transportation of goods over waterways is more energy efficient than on roads and railways. INS, similar to other civil structures, are aging and require frequent condition assessment and maintenance. Countries, in which INS are important to their economies, such as the Netherlands and the United States, allocate significant budgets for maintenance and renovation of exiting INS, as well as for building new structures. Timely maintenance and early detection of a change to material or geometric properties (i.e., damage) can be supported with the structural health monitoring (SHM), in which monitored data, such as load, structural response, environmental actions, are analyzed. Huge scientific efforts are realized in bridge SHM, but when it comes to SHM of INS, the efforts are significantly lower. Therefore, the SHM community has opportunities to develop new solutions for SHM of INS and convince asset owners of their benefits. This review article, first, articulates the need to keep INS safe to use and fit for purpose, and the challenges associated with it. Second, it defines and reviews sensors, sensing technologies, and approaches for SHM of INS. Then, INS and their components, including structures in ports, are identified, described, and illustrated, and their monitoring efforts are reviewed. Finally, the review article emphasizes the added value of SHM systems for INS, concludes on the current achievements, and proposes future trajectories for SHM of INS and ports.

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Section: Issues and Concerns With Insmentioning

confidence: 99%

Structural health monitoring of inland navigation structures and ports: a review on developments and challenges

Negi

Kromanis

Dorée

et al. 2023

Structural Health Monitoring

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“…The proposed formula proposed by Ryan et al [32] takes the Froude number into account, as Equation ( 14). Yuksel et al [33] added the gap of the propeller (G) to these factors, as shown in Equation (15). Take 5D p spacing as a comparative case, the comparison between the calculated results and the experimental results are shown in Figure 9.…”

Section: Comparison Of Scour Depth Between Free Twin Propeller and Quay Wallmentioning

confidence: 99%

“…Take 5D p spacing as a comparative case, the comparison between the calculated results and the experimental results are shown in Figure 9. Hamill et al [19], Ryan et al [32], and Yuksel et al [33] studied the scour depth of a single propeller near the quay wall. This study is aimed at the scour of twin propellers.…”

Section: Comparison Of Scour Depth Between Free Twin Propeller and Quay Wallmentioning

confidence: 99%

Experimental Scours by Impinging Twin-Propeller Jets at Quay Wall

Cui

Lam

Ong

et al. 2020

JMSE

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Experiments were conducted to investigate the seabed scour holes due to the interaction between the twin-propeller jet and quay wall. Vertical quay wall was modelled by using a polyvinyl chloride (PVC) plastic plate in a water tank. The relationship between the positions of the propeller and the vertical quay wall was designed according to the actual working conditions of a ship entering and leaving a port. Propeller-to-wall distance and rotational speed were changed to observe the various scour conditions. The scour depth was measured by using an Acoustic Doppler Velocimeter (ADV). Primary scour hole was found within the jet downstream and secondary scour hole occurred beneath of the propeller. Third scour hole was found close to the quay wall due to horseshoe vortices. The maximum scour position of this third scour hole was found at the jet centre near the quay wall. Temporal formation of scour holes can be divided into three stages: axial scour formation, obstructed scour expansion and equilibrium stages. The quantitative relationships for six characteristic parameters of the scour pit were established including the maximum scour depth (εmax,q), maximum scour depth position (Xm，q), maximum scour width (Wm，q), length of main scour pit (XS，q), maximum deposition height (ZD，q), and location of maximum deposition height (XD，q).

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“…Most of the published literature about the effects of ships' propellers on port sediments and structures is experimental, and it has mainly been conducted in laboratories using physical models (Mujal-Colilles et al, 2018;Yuksel et al, 2019). Few practical instruments are available for port authorities that can provide robust and scientifically based analyses and predictions of the relevant processes.…”

Section: Introductionmentioning

confidence: 99%

Effects of marine traffic on sediment erosion and accumulation in ports: a new model-based methodology

et al. 2021

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Abstract. The action of propeller-induced jets on the seabed of ports can cause erosion and the deposition of sediment around the port basin, potentially significantly impacting the bottom topography over the medium and long term. If such dynamics are constantly repeated for long periods, a drastic reduction in ships' clearance can result through accretion, or the stability and duration of structures can be threatened through erosion. These sediment-related processes present port management authorities with problems, both in terms of navigational safety and the optimization of management and maintenance activities of the port's bottom and infrastructure. In this study, which is based on integrated numerical modeling, we examine the hydrodynamics and the related bottom sediment erosion and accumulation patterns induced by the action of vessel propellers in the passenger port of Genoa, Italy. The proposed new methodology offers a state-of-the-art science-based tool that can be used to optimize and efficiently plan port management and seabed maintenance.

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Determining propeller scour near a quay wall

Cited by 12 publications

References 20 publications

Structural health monitoring of inland navigation structures and ports: a review on developments and challenges

Structural health monitoring of inland navigation structures and ports: a review on developments and challenges

Experimental Scours by Impinging Twin-Propeller Jets at Quay Wall

Effects of marine traffic on sediment erosion and accumulation in ports: a new model-based methodology

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