Impact of the Thruster Jet Flow of Ultra-large Container Ships on the Stability of Quay Walls
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As the size of ships increases, the size and output power of their thrusters also increase. When a large ship berths or unberths, the jet flow produced from its thruster has an adverse effect on the stability of quay walls. In this study, we conducted a numerical analysis to examine the impact of the thruster jet flow of a 30,000 TEU container ship, which is expected to be built in the near future, on the stability of a quay wall. In the numerical simulation, we used the fluid–structure interaction analysis technique of LS-DYNA, which is calculated by the overlapping capability using an arbitrary Lagrangian Eulerian formulation and Euler–Lagrange coupling algorithm with an explicit finite element method. As the ship approached the quay wall and the vertical position of the thruster approached the mound of the quay wall, the jet flow directly affected the foot-protection blocks and armor stones. The movement and separation of the foot-protection blocks and armor stones were confirmed in the area affected directly by the thruster jet flow of the container ship. Therefore, the thruster jet flows of ultra-large ships must be considered when planning and designing ports. In addition, the stability of existing port structures must be evaluated.
Abstract
As the size of ships increases, the size and output power of their thrusters also increase. When a large ship berths or unberths, the jet flow produced from its thruster has an adverse effect on the stability of quay walls. In this study, we conducted a numerical analysis to examine the impact of the thruster jet flow of a 30,000 TEU container ship, which is expected to be built in the near future, on the stability of a quay wall. In the numerical simulation, we used the fluid–structure interaction analysis technique of LS-DYNA, which is calculated by the overlapping capability using an arbitrary Lagrangian Eulerian formulation and Euler–Lagrange coupling algorithm with an explicit finite element method. As the ship approached the quay wall and the vertical position of the thruster approached the mound of the quay wall, the jet flow directly affected the foot-protection blocks and armor stones. The movement and separation of the foot-protection blocks and armor stones were confirmed in the area affected directly by the thruster jet flow of the container ship. Therefore, the thruster jet flows of ultra-large ships must be considered when planning and designing ports. In addition, the stability of existing port structures must be evaluated.
참고문헌 (30)
- Teresa Abramowicz-Gerigk, "Experimental study on the selected aspects of bow thruster generated flow field at ship zero-speed conditions", Ocean Engineering, 209, pp.107463~ (2020), Elsevier BV[DOI]
- Teresa Abramowicz-Gerigk, "Full scale measurements of pressure field induced on the quay wall by bow thrusters – indirect method for seabed velocities monitoring", Ocean Engineering, 162, pp.150~160 (2018), Elsevier BV[DOI]
- Jarosław Artyszuk, "Energy Savings by Optimization of Thrusters Allocation during Complex Ship Manoeuvres", Energies, 14(16), pp.4959~ (2021), MDPI AG[DOI]
- Knud Benedict, "Innovative Fast Time Simulation Tools for Briefing", Debriefing in Advanced Ship Handling Simulator Training and Ship Operation, 2017, pp.6(1), 24~38[DOI]
- Bui, V. P., "Optimal Control Design for Automatic Ship Berthing by Using Bow and Stern Thrusters", Journal of Ocean Engineering and Technology, 24(2), pp.10~17 (2010)
- Bulten, N. W. H., "Full Scale Thruster Performance and Load Determination Based on Numerical Simulations", Proceedings of 3rd International Symposium on Marine Propulsors, pp.501~509 (2013)
- CIRIA, "The Rock Manual: The Use of Rock in Hydraulic Engineering", CIRIA, ~ (2007)
- Feng Yukun, "An experimental and numerical investigation on hydrodynamic characteristics of the bow thruster", Ocean Engineering, 209, pp.107348~ (2020), Elsevier BV[DOI]
- Fuehrer, M., "Effects of Modern Ship Traffic on Islands and Ocean Waterways and Their Structures", Proceedings of 24th Congress, P.I.A.N.C (1977)
- Galal, E. M., "The Effect of Sea Side Quay Wall Roughness and Inclination on Bed Scour Induced by Ship Bow-Thrusters", Malaysian Journal of Civil Engineering, 28(2), pp.205~217 (2016)[DOI]
- Galal, E. M., "Minimizing Bed Scour Induced by Ship Bow Thrusters by Using Quay Wall Flow Deflector", Malaysian Journal of Civil Engineering, 31(2), pp.17~26 (2019)[DOI]
- Irene, C., "Bowthruster-Induced Flow on the Bottom of a Vertical Quay Wall: A Field Measurement", Master, pp.2020
- Jeon, H., "The Era of Mega Vessels and Challenges to Ports", PECC International Project Seminar (2015)
- 정태권, "A Study on Development of Laptop-Based Pilots’ Ship-Handling Simulation Software", 한국항해항만학회지, 36(7), pp.571~575 (2012), 한국항해항만학회
- Livermore Software Technology, "LS-DYNA Keyword User's Manual, R12", LSTC, ~ (2020)
- Mavko, G., "Rock Physics Handbook" (2009), Cambridge University Press
- Guidelines for Protecting Berthing Structures from Scour Caused by Ships, "Permanent International Association of Navigation Congress", PIANC, ~, pp.Report No. 180 (2015)
- Poehlmann-Martins, F., "Hydrodynamic Ram Analysis of Non-Exploding Projectile Impacting Water", Proceedings of the ASME 2005 Pressure Vessels and Piping Conference, pp.267~273 (2005)
- Adam K. Prokopowicz, "An Evaluation of Current Trends in Container Shipping Industry, Very Large Container Ships (VLCSs), and Port Capacities to Accommodate TTIP Increased Trade", Transportation Research Procedia, 14, pp.2910~2919 (2016), Elsevier BV[DOI]
- Roelse, F. P., "Stability of Slope Material Affected by Bow Thrusters at Open Quay Structures", Master, pp.2014
- Rolls-Royce, "Marine Products and Systems" (2013), Rolls-Royce plc
- Santini, P., "Numerical Simulation of Fluid-Structure Interaction in Aircraft Fuel Tanks Subjected to Hydrodynamic Ram Penetration", 21st the International Council of the Aeronautical Sciences (ICAS) Congress (1998)
- C M Seddon, "Preliminary analysis of fuel tank impact", International Journal of Crashworthiness, 9(3), pp.237~244 (2004), Informa UK Limited[DOI]
- Souli, M., "ALE Formulation for Fluid-Structure Interaction Problems", Computer Methods in Applied Mechanics and Engineering, 190(5–7), pp.659~675 (2000)[DOI]
- Van Luong Tran, "A study on ship automatic berthing with assistance of auxiliary devices", International Journal of Naval Architecture and Ocean Engineering, 4(3), pp.199~210 (2012), 대한조선학회
- van Blaaderen, E. A., "Modelling Bowthruster Induced Flow Near a Quay-Wall", Master, pp.2006
- van den Brink, A. J. W., "Modelling Scour Depth at Quay Walls Due to Thrusters", Master, pp.2014
- Gyeong-Seon Yeom, "Application of a Modified Estimation Formula for Collision Force of Deformed Drifting Containers under Tsunami Conditions", Journal of Coastal Research, 333(3), pp.720~730 (2017), Coastal Education and Research Foundation[DOI]
- Gyeong-Seon Yeom, "Collision Analysis of Container Drifted by Runup Tsunami Using Drift Collision Coupled Model", Journal of Disaster Research, 4(6), pp.441~449 (2009), Fuji Technology Press Ltd[DOI]
- Cheng Yu, "Study of tunnel thruster performance and flow by quasi-steady Reynolds-averaged Navier-Stokes simulation", Journal of Shanghai Jiaotong University (Science), 21(6), pp.662~671 (2016), Springer Science and Business Media LLC[DOI]