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Chao Qin, Baosheng Wu, Yuan Xue, Xudong Fu, Guangqian Wang and Ge Wang
Downstream hydraulic geometry (DHG) for multiple discharge frequencies remains poorly investigated. This paper seeks to clarify the DHG relations of different discharge frequencies and proposes the definition, mathematical expression, and geomorphologica...
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Ada Vengust, Anja Koro?a, Janko Urbanc and Nina Mali
With increasing exploitation of groundwater resources and implementation of various activities in their recharge areas, it is vital to conduct a comprehensive assessment of aquifers to ensure their conservation and sustainable management. In the present ...
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Nicu?or Baroiu, Virgil Gabriel Teodor, Viorel Paunoiu, Georgiana-Alexandra Moro?anu and Iona?-Catalin Dumitrescu
In most situations, for the proper design of a gerotor pump, numerous parameters must be taken into account: the pump geometry, the properties of the materials from which the pumps are made (Young?s modulus, Poisson?s coefficient, friction coefficients, ...
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Yubo Li, Linjie Chen and Yonghong Shi
The geometry of the fracture exerts an important impact on the flow of the fractures and the transport of the solutes. Herein, Forchheimer?s law and the weighted-sum ADE (WSADE) model were alternatively employed, and the obtained pressure gradient versus...
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Hadi Ostad, Zargham Mohammadi and Francesco Fiorillo
It is widely accepted that spring hydrographs are an effective tool for evaluating the internal structure of karst aquifers because they depict the response of the whole aquifer to recharge events. The spring hydrograph is affected by various factors suc...
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James Yang, Shicheng Li, Anna Helgesson, Erik Skepparkrans and Anders Ansell
The piano key (PK) weir is a cost-effective structure for flood discharge. Its typical layout comprises a rectangularly cranked crest in planform with up- and downstream overhangs. With the intention to enhance its hydraulic efficiency, the conventional ...
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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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Ahmed Mohsen, Ferenc Kovács and Tímea Kiss
The spatio-temporal dynamism of sediment discharge (Qs) in rivers is influenced by various natural and anthropogenic factors. Unfortunately, most rivers are only monitored at a limited number of stations or not gauged at all. Therefore, this study aims t...
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Moisés Brito, Francisco Bernardo, Maria G. Neves, Diogo R. C. B. Neves, Alejandro J. C. Crespo and José M. Domínguez
A 2D numerical investigation of the power absorption of a constrained wave energy hyperbaric converter (WEHC) under full-scale sea wave conditions is presented. A fully non-linear numerical model DualSPHysics, based on the coupling of a smoothed particle...
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Chunxiao Wu, Yu Lu, Shewen Liu, Zhiyuan Li, Zhuhao Gu, Wu Shao and Chuang Li
A pump-jet propulsion system is composed of rotor, stator, and duct. The stator has the front stator type and the rear stator type; the conduit also has the acceleration conduit and the deceleration conduit two forms. It is difficult to design and evalua...
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