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Ulrich Zanke and Aron Roland
Morphodynamic processes on Earth are a result of sediment displacements by the flow of water or the action of wind. An essential part of sediment transport takes place with permanent or intermittent contact with the bed. In the past, numerous approaches ...
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Jong-Ho Choi, Kye-Won Jun and Chang-Deok Jang
Bed-load discharge of a river can be monitored by indirectly measuring the acoustic pulses generated when the bed load collides with a steel pipe installed on the riverbed (i.e., pipe hydrophone measurement). However, existing methods used for filtering ...
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Qiang Wang, Yunwen Pan, Kejun Yang and Ruihua Nie
The formation and reestablishment of bed structural properties in the static armor layer is an important research subject. To address this issue, we conducted a series of static armor layer experiments in a laboratory flume that focused on formation and ...
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Luis Spalletti,Ferrán Colombo
Pág. 471 - 489
The Huarenchenque Formation is a volcano sedimentary unit deposited to the east of the Plio-Quaternary Andean Magmatic Arc. In order to define depositional settings, two lithofacies associations (fluvial and pyroclastic) were defined. The fluvial facies ...
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Gang Liu, Mingzhi Zhao, Qiang Luo and Hongyu Jia
To investigate the evolving characteristics of plastic deformation for the angular gravels that are used to construct subgrade bed, a laboratory model test is performed with cyclic load applying. Vertical deformation is measured in real time by displacem...
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Ming Luo, Heli Yu, Er Huang, Rui Ding and Xin Lu
Numerical modeling of sedimentation and erosion in reservoirs is an active field of reservoir research. However, simulation of the bed-load transport phenomena has rarely been applied to other water bodies, in particular, the fluctuating backwater area. ...
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Haiyan Yang, Binliang Lin, Jian Sun, Guoxian Huang
Pág. 1 - 18
Numerical models provide considerable assistance in the investigation of complicated processes in natural rivers. In the present study, a physics-based two-dimensional model has been developed to simulate the braiding processes and morphodynamic changes ...
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Haiyan Yang, Binliang Lin, Jian Sun and Guoxian Huang
Numerical models provide considerable assistance in the investigation of complicated processes in natural rivers. In the present study, a physics-based two-dimensional model has been developed to simulate the braiding processes and morphodynamic changes ...
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Vyacheslav Savenko,Alina Kvatadze,Oleksandr Davydenko,Vitalii Stozhka,Leonid Ianchuk
Pág. 62 - 75
The processes forming the humidity mode of the drainage layer of a road structure under the action of excess load have been investigated. The stressed-strained state was determined based on a numerical experiment using the software-calculation suite SCAD...
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Sayed Masihullah Ahmadi, Yoshimichi Yamamoto and Vu Thanh Ca
In the case of huge tsunamis, such as the 2004 Great Indian Ocean Tsunami and 2011 Great East Japan Tsunami, the damage caused by ground scour is serious. Therefore, it is important to improve prediction models for the topographical change of huge tsunam...
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Loukas Avgeris, Konstantinos Kaffas and Vlassios Hrissanthou
Sediment transport and stream discharge are two of the natural procedures which affect the hydromorphological profile of a watercourse. Measurements of water discharge, bed load transport rate and suspended sediment concentration were conducted in Kosynt...
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Zheng Wei and Yusheng Jiang
Surface surcharge changes the existing equilibrium stress field of the stratum and adversely affects the existing tunnel. This paper presents a simplified analytical solution for calculating the longitudinal displacement of existing tunnels that are subj...
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Wei Miao, Danxun Li and Qiang Zhong
The imaging technique provides an efficient non-intrusive way for studying local sediment transport with a low rate in open-channel flows. It aims to track all sediment trajectories above the background consists of similar particles (i.e., top-view image...
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Thomas Gold, Kevin Reiterer, Christoph Hauer, Helmut Habersack and Christine Sindelar
Periodic flushing operations during moderate flood events (=annual flood flow HQ1" role="presentation">11
1
) are an approach to counteract problems caused by disturbed sediment continuity in rivers, which is possibly an effect of run-of-river hydropower...
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Gilltae Roh, Hansung Kim, Hyeonmin Jeon and Kyoungkuk Yoon
The need for technological development to reduce the impact of air pollution caused by ships has been strongly emphasized by many authorities, including the International Maritime Organization (IMO). This has encouraged research to develop an electric pr...
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Fei Fan, Bingchen Liang, Yaru Li, Yuchuan Bai, Yanjun Zhu, Zhixia Zhu
Pág. 1 - 23
Rigid-lid approximation is usually used to replace the free surface in scour simulation. The influence of the rigid lid assumption on the prediction precision of scour hole in steady flow is studied in this paper. Firstly, a local scour model was constru...
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Muhammad Irham
Pág. 82 - 87
Dynamic interactions of hydrological and geomorphological processes in the fluvial system result in accumulated deposit on the bed because the capacity to carry sediment has been exceeded. The bed load of the Aceh fluvial system is primarily generated by...
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Michele Conconi, Filippo De Carli, Matteo Berni, Nicola Sancisi, Vincenzo Parenti-Castelli and Giuseppe Monetti
The in-vivo quantification of knee motion in physiological loading conditions is paramount for the understanding of the joint?s natural behavior and the comprehension of articular disorders. Dynamic MRI (DMRI) represents an emerging technology that makes...
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Ioannis Kazakis and Theophanis V. Karambas
This study focuses on the numerical investigation of the 3D hydrodynamic processes of coastal zones such as wave breaking, wave-induced currents, and sediment transport, using the multiphase, interFoam solver of OpenFOAM® (a state-of-the-art, open-source...
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Hongwei An, Xiaoyuan Hu, Scott Draper, Liang Cheng, Binsar Lubis and Mehrdad Kimiaei
A physical model testing method to determine the hydrodynamic force coefficients of an object is proposed and applied to an articulated concrete mattress placed on a flat surface under steady current condition. The test setup, which comprises of a pulley...
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