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Shanying Lin, Jialu Xu, Shengnan Liu, Muk Chen Ong and Wenhua Li
The gas?liquid two-phase flow patterns of subsea jumpers are identified in this work using a multi-sensor information fusion technique, simultaneously collecting vibration signals and electrical capacitance tomography of stratified flow, slug flow, annul...
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Umair Khan, William Pao and Nabihah Sallih
Gas?liquid two-phase flow is very common in industrial pipelines. Flow regime identification is the first step to design, analyze, and operate the gas?liquid system successfully. The purpose of this study is to develop a methodology for identification of...
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Christina Papadaki and Elias Dimitriou
River flow alterations, caused by climate variability/change and intense anthropogenic uses (e.g., flow regulation by dams) are considered among the main global challenges of which hydrologists should be dealing with. For the purpose of this study, envir...
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Barbara Zanchi, Matteo Zucchi and Alessio Radice
This communication explores the use of numerical modelling to simulate the hydro-morphologic response of a laboratory flume subject to sediment overloading. The numerical model calibration was performed by introducing a multiplicative factor in the Meyer...
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Liangliang Duan and Tijiu Cai
Global warming-induced earlier streamflow timing and changes in flood risk have been widely reported in snow-dominated regions where the land surface hydrology is dominated by winter snow accumulation and spring melt. However, impacts of climate warming ...
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Belete Berhanu, Yilma Seleshi, Solomon S. Demisse and Assefa M. Melesse
The spatiotemporal variability of a stream flow due to the complex interaction of catchment attributes and rainfall induce complexity in hydrology. Researchers have been trying to address this complexity with a number of approaches; river flow regime is ...
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Erfan Taheri, Ming Zhao and Helen Wu
The response of an elastically mounted circular cylinder vibrating in an oscillatory flow oblique to the flow direction is investigated. Simulations are conducted for vibration angles ranging from 0° to 90°, with 0° and 90° corresponding to the cases whe...
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Pawel Burandt, Miroslaw Grzybowski, Katarzyna Glinska-Lewczuk, Wojciech Gotkiewicz, Monika Szymanska-Walkiewicz and Krystian Obolewski
The objective of the study was to determine the relationship between the structure of phytocenoses in riparian wetland ecosystems and the hydrologic regime in a lowland river floodplain. The hydrobotanical study was conducted over three years?2017, 2018,...
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Forough Alizadeh Sanami, Amir Ghaderi, Fardin Alizadeh Sanami, Parisa Mirkhorli and Silvia Di Francesco
A piano key weir (PKW), a new type of weir aiming to increase the discharge capacity of an existing dam, was recently designed. Despite a large body of research in this field, only a few studies were conducted on A-type triangular piano key weirs (TPKW) ...
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Milan Kresojevic, Vesna Ristic Vakanjac, Dragan Trifkovic, Jugoslav Nikolic, Boris Vakanjac, Du?an Polomcic and Dragoljub Bajic
This paper describes how uncontrolled and illegal mining of sand and gravel can affect surface water and groundwater regimes in places where there is a hydraulic connection between them, based on a case study of the Velika Morava River in Serbia. Also, a...
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Hitoshi Tanaka, Nguyen Xuan Tinh and Ahmad Sana
According to recent investigations on bottom boundary layer development under tsunami, a wave boundary can be observed even at the water depth of 10 m, rather than a steady flow type boundary layer. Moreover, it has been surprisingly reported that the ts...
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Hitoshi Tanaka, Nguyen Xuan Tinh and Ahmad Sana
The transitional flow regime of the bottom boundary layer under hypothetical shoaling tsunamis is investigated in the entire region from the tsunami source to the shallow sea area. In order to calculate the shoaling process of a tsunami, an analytical me...
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Yuanyuan Sun, Cailing Liu, Yanwei Zhao, Xianqiang Mao, Jun Zhang and Hongrui Liu
Reducing the degree of flow regime alteration is a basic principle for biodiversity conservation in rivers. The range of variability approach (RVA) is the most widely used method to assess flow regime alteration. Generally, researchers tend to put all of...
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Weichen Ren, Jie Wei, Qiancheng Xie, Baoguang Miao and Lijie Wang
A stop-log gate, installed in water intake of hydropower project, has become an effective facility in achieving selective withdrawal and temperature control for the sake of benefiting downstream ecosystems. Hence, it is of great importance to comprehensi...
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Vitaly Sergeev, Nikolai Vatin, Evgeny Kotov, Darya Nemova and Svyatoslav Khorobrov
The main objective of the study is to propose a technical solution integrated into the pipeline for the transition of the flow regime from slug to bubbly two-phase flow. The object of research is isothermal two-phase gas?Newtonian-liquid flow in a horizo...
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Zhenbo Lu, Jingxin Xia, Man Wang, Qinghui Nie and Jishun Ou
Short-term traffic flow forecasting is crucial for proactive traffic management and control. One key issue associated with the task is how to properly define and capture the temporal patterns of traffic flow. A feasible solution is to design a multi-regi...
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Svetlana Kostic, Daniele Casalbore, Francesco Chiocci, Jörg Lang and Jutta Winsemann
Upper-flow-regime bedforms and their role in the evolution of marine and lacustrine deltas are not well understood. Wave-like undulations on delta foresets are by far the most commonly reported bedforms on deltas and it will take time before many of thes...
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Anna Maria Pellegrino and Leonardo Schippa
This paper refers to complex granular-fluid mixtures involved into geophysical flows, such as debris and hyper-concentrated flows. For such phenomena, the interstitial fluids play a role when they are in the viscous regime. Referring to experiments on gr...
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Roya Sadat Mousavi, Mojtaba Ahmadizadeh and Safar Marofi
In this paper, the impact of climate change on the climate and discharge of the Dez Dam Basin and the hydropower potential of two hydropower plants (Bakhtiari and Dez) is investigated based on the downscaled outputs of six GCMs (General Circulation Model...
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Jin-Fu Li, Samkele S. Tfwala and Su-Chin Chen
Understanding the effects of riparian vegetation under sediment-laden flow is becoming crucial due to the increase in frequency of extreme weather events. This study designed three densities and nine random distributions of bent flexible vegetation in fl...
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