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Experimental Investigation of Debris Transport Due to Extreme Hydrodynamic Flows Induced by Tsunami
Entrainment of floating objects and their impacts in disaster-prone coastal areas were well-observed phenomena during the forensic surveys of the aftermath of extreme coastal disasters such as tsunamis. The impacts of floating objects have not been very well understood recently. This paper presents a series of hydraulic experiments conducted with the various arrangements of cuboid elements subjected to disparate dam break waves to identify the behaviour of the movements and resultant dispersion over a mildly sloped bed. The motion of the cuboids was tracked through a high-speed camera to estimate the moving velocity of the debris and to identify the trajectories. Results indicated that the velocity of the debris was predicted with reasonable accuracy compared with the empirical formulation. Also, debris transport could be expressed as a normal distribution, symmetrically dispersed over the plane. Furthermore, it was observed that the initial configuration parameter and flow characteristics played a crucial role in debris transport modes.
Experimental Investigation of Debris Transport Due to Extreme Hydrodynamic Flows Induced by Tsunami
Entrainment of floating objects and their impacts in disaster-prone coastal areas were well-observed phenomena during the forensic surveys of the aftermath of extreme coastal disasters such as tsunamis. The impacts of floating objects have not been very well understood recently. This paper presents a series of hydraulic experiments conducted with the various arrangements of cuboid elements subjected to disparate dam break waves to identify the behaviour of the movements and resultant dispersion over a mildly sloped bed. The motion of the cuboids was tracked through a high-speed camera to estimate the moving velocity of the debris and to identify the trajectories. Results indicated that the velocity of the debris was predicted with reasonable accuracy compared with the empirical formulation. Also, debris transport could be expressed as a normal distribution, symmetrically dispersed over the plane. Furthermore, it was observed that the initial configuration parameter and flow characteristics played a crucial role in debris transport modes.
Experimental Investigation of Debris Transport Due to Extreme Hydrodynamic Flows Induced by Tsunami
Lecture Notes in Civil Engineering
Dissanayake, Ranjith (editor) / Mendis, Priyan (editor) / Weerasekera, Kolita (editor) / De Silva, Sudhira (editor) / Fernando, Shiromal (editor) / Konthesingha, Chaminda (editor) / Gajanayake, Pradeep (editor) / Josiah, N. R. (author) / Araki, S. (author) / Laknath, D. P. C. (author)
International Conference on Sustainable Built Environment ; 2022 ; Yogyakarta, Indonesia
2023-08-10
13 pages
Article/Chapter (Book)
Electronic Resource
English
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