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Special Issue "Water Resources and Environmental Fluid Mechanics: From the Glacier to the Lake/Ocean"

A special issue of Water (ISSN 2073-4441).

Deadline for manuscript submissions: 15 November 2017

Special Issue Editors

Guest Editor
Prof. Koen Blanckaert

Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
Website | E-Mail
Interests: hydraulics; fluid mechanics; geomorphology; ecohydraulics; civil and environmental engineering
Guest Editor
Dr. Damien Bouffard

Department Surface Waters Research & Management, EAWAG, Seestrasse 79, 6047 Kastanienbaum, Switzerland
Website | E-Mail
Interests: environmental fluid mechanics; physical limnology; hydrodynamic and water quality modelling; turbulence and mixing in stratified flows

Special Issue Information

Dear Colleagues,

Water resources managers and engineers often need to balance conflicting objectives, such as hazard mitigation (floods, droughts), socio-economic use (hydropower, navigation, leisure), and environmental protection (conservation or restoration of ecosystem functions). They are faced with problems occurring all along the river axis, from the glacier upstream in the watershed, to the lake or ocean at its downstream end. Spatial scales in river systems are intrinsically related, i.e, local interventions, often have implications far upstream and/or downstream on the river and the final receiving water body, and large-scale changes to hydrology or morphology affect local processes. Water resources and environmental fluid mechanics become ever more multidisciplinary, and the development of tools for design or objective decision-making requires insight in processes occurring where water, sediment and biota meet. New measurement technologies and state-of-the-art experimental investigations in the field and in the laboratory are key to enhancing insight. The present Special Issue particularly welcomes contributions that: (i) focus on eco-hydro-morphological processes; (ii) focus on the relation between processes occurring at different locations along the river axis and in the downstream lake or ocean or at different spatial scales; and (iii) focus on experimental studies in the field and in the laboratory.

Prof. Koen Blanckaert
Dr. Damien Bouffard
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • environmental fluid mechanics
  • water resources
  • eco-hydro-morphological processes
  • instrumentation
  • field experiments
  • laboratory experiments
  • turbulent mixing and transport
  • downstream and upstream effects

Published Papers (1 paper)

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Research

Open AccessArticle A Semi-Analytical Model for the Hydraulic Resistance Due to Macro-Roughnesses of Varying Shapes and Densities
Water 2017, 9(9), 637; doi:10.3390/w9090637
Received: 21 June 2017 / Revised: 27 July 2017 / Accepted: 21 August 2017 / Published: 25 August 2017
PDF Full-text (1675 KB) | HTML Full-text | XML Full-text
Abstract
A friction model resulting from investigations into macro-roughness elements in fishways has been compared with a broad range of studies in the literature under very different bed configurations. In the context of flood modelling or aquatic habitats, the aim of the study is
[...] Read more.
A friction model resulting from investigations into macro-roughness elements in fishways has been compared with a broad range of studies in the literature under very different bed configurations. In the context of flood modelling or aquatic habitats, the aim of the study is to show that the formulation is applicable to both emergent or submerged obstacles with either low or high obstacle concentrations. In the emergent case, the model takes into account free surface variations at large Froude numbers. In the submerged case, a vegetation model based on the double-averaging concept is used with a specific turbulence closure model. Calculation of the flow in the roughness elements gives the total hydraulic resistance uniquely as a function of the obstacles’ drag coefficient. The results show that the model is highly robust for all the rough beds tested. The averaged accuracy of the model is about 20% for the discharge calculation. In particular, we obtain the known values for the limiting cases of low confinement, as in the case of sandy beds. Full article
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: The Development of a Kinetic Turbine with Experimental Results on a Pilot Site in an Artificial Channel
Author: Cécile Münch-Alligné
Abstract: In the actual context of Swiss nuclear phase-out strategy, harvesting the extensive potential of small hydropower (<10MW), in particular on existing infrastructure, is a priority. In this framework, a new kinetic turbine has been jointly developed between the HES-SO Valais//Wallis and Stahleinbau Gmbh in Switzerland, to harvest the kinetic energy of free surface flows in existing facilities such as run-of-river tailrace channels, headrace tunnels or water treatment stations. The hydraulic design of the ducted turbine has been obtained by flow numerical simulations. The objective of the present research project is to build a first prototype of 1 kW as well as an open-air platform and to test it in a tailrace channel. The chosen pilot site is the Lavey run-of-river hydropower plant’s tailrace channel, installed in the Western side of Switzerland on the Rhône River. The experimental results show a very good power coefficient higher than 0.8 and confirmed the numerical development.

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