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Fluids
Special Issues
Modelling the Behaviour of Water Systems to Increase Sustainability
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Modelling the Behaviour of Water Systems to Increase Sustainability

A special issue of Fluids (ISSN 2311-5521). This special issue belongs to the section "Geophysical and Environmental Fluid Mechanics".

Deadline for manuscript submissions: closed (31 July 2021) | Viewed by 9122

Special Issue Editors

Prof. Dr. Amparo López Jiménez

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Guest Editor
Department of Hydraulic and Environmental Engineering, Universitat Politècnica de València, 46022 València, Valencia, Spain
Interests: fluid mechanics; computational fluid dynamics; environment sustainability;numerical modeling; CFD simulation; water quality; numerical simulation; modeling and simulation environmental; impact assessment; energy systems; energy demand; energetic implications in engineering facilities; renewable energy sources
Special Issues, Collections and Topics in MDPI journals
Dr. Modesto Pérez-Sánchez

E-Mail Website1 Website2
Guest Editor
Department of Hydraulic and Environmental Engineering, Universitat Politècnica de València, 46022 Valencia, Spain
Interests: renewable energies; clean energies; sustainability; hydropower systems; zero-energy buildings; simulated modelling; optimization procedure; sustainable development
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

An integrated planning and management of supply networks is crucial to improve sustainability of real systems. Conservation of the water resource, and the optimization of energy requirements to provide the water at the required quantity and quality levels is a real need for mentalizing society on environmental issues. New technologies through well-proven computational models as support for decision-making are fundamental in future research in this line.

 

The need to increase the sustainability in our infrastructures is essential, and any analysis is necessary to help managers to carry out applications in which the sustainability of their system increases. Therefore, the proposal of numerical analysis using computational fluid dynamics software supported in experimental data is necessary to develop proposal of methodologies and/or algorithms. These strategies will improve the sustainability indicators of the processes are interesting in order to increase the quality of systems as well as the users’ satisfaction.

 

In this frame, this Special Issue aims to propose a collection of worthy studies that combine the aforementioned concepts dealing with:

  • numerical/experimental studies based on improving the knowledge of hydraulic machines (i.e., pumps, turbines, pump working as turbine, fans, among others)
  • numerical/experimental studies based on improving the knowledge of hydraulic control elements (i.e., pressure reduction valves, air valves, section valves, among others)
  • analysis of transient flow is necessary to design adequate protection systems that support the oscillations of pressure produced in the operation of motor elements and regulation
  • development of methodologies, which is based on numerical studies using CFD techniques to consider the dispersion of pollutants in fluid facilities
  • numerical analysis to analyse the intrusion pathogen in water pressurized systems
  • development of tools based on OPENFOAM software to help the water management of water systems
  • numerical analysis of free surface flow, which can be applied to civil structures such as dams, spillways, drain pipes, hydraulic jumps, among others
  • methodologies and/or case studies concerning the analysis to know the flood maps due to torrential rains, break of reservoirs and using unidimensional and bidimensional models
  • models to improve the representation of the disinfectant distribution through drinking water networks

Prof. Petra Amparo López Jiménez
Prof. Modesto Pérez-Sánchez
Guest Editors

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 submissions that pass pre-check are 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. Fluids 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 1800 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

  • computational fluid dynamics
  • numerical/experimental studies
  • hydraulic machines
  • hydraulic control elements
  • pollutants in fluid facilities
  • water pressurized systems
  • OPENFOAM software
  • water management
  • water systems
  • free surface flow
  • civil structures
  • flood maps
  • drinking water networks

Published Papers (3 papers)

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Research

11 pages, 3714 KiB  
Article
Insight of Numerical Simulation for Current Circulation on the Steep Slopes of Bathymetry and Topography in Palu Bay, Indonesia
by Mohammad Lutfi
Fluids 2021, 6(7), 234; https://0-doi-org.brum.beds.ac.uk/10.3390/fluids6070234 - 29 Jun 2021
Viewed by 1931
Abstract
The steep slope of the bathymetry and topography that surrounds Palu Bay is a unique morphology of the area that affects the currents. A simulation was carried out in three regions with seven scenarios to understand the effect of wind, tide, and discharge [...] Read more.
The steep slope of the bathymetry and topography that surrounds Palu Bay is a unique morphology of the area that affects the currents. A simulation was carried out in three regions with seven scenarios to understand the effect of wind, tide, and discharge on currents. The results showed that the average current pattern in Palu Bay is more dominantly influenced by tides at the open boundary and in the middle of the bay, steered by wind directions. The velocity decreases when it reaches the end of the bay and eventually reverses back to the mouth of the bay through both sides of the bay. The current in the Palu River estuary with a discharge of 36 m3/s moves out of the river mouth. On the other hand, results with a discharge of 2 m3/s revealed that the tidal current in the middle layer to the lower layer moves in the opposite direction to the current generated by the discharge in the layer above. It means that the tidal current velocity is lower than that generated by the river discharge. The computation revealed a good agreement with observed current velocity at the selected observation points. Full article
(This article belongs to the Special Issue Modelling the Behaviour of Water Systems to Increase Sustainability)
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14 pages, 12940 KiB  
Article
Evaluation of Magnus Force on Check Ball Behavior in a Hydraulic L Shaped Pipe
by Shinji Kajiwara
Fluids 2021, 6(5), 191; https://0-doi-org.brum.beds.ac.uk/10.3390/fluids6050191 - 19 May 2021
Viewed by 1861
Abstract
This paper presents the effect of the rotational speed of a check ball in a hydraulic L-tube on the translational motion caused by the Magnus effect. A spring-driven ball check valve is one of the most important components of a hydraulic system and [...] Read more.
This paper presents the effect of the rotational speed of a check ball in a hydraulic L-tube on the translational motion caused by the Magnus effect. A spring-driven ball check valve is one of the most important components of a hydraulic system and controls the position of the ball to prevent backflow. To simplify the structure, the springs must be eliminated. To this end, it is necessary to clarify the flow pattern of the check ball in an L-shaped pipe and the rotational and translational behaviors of the ball. In this study, the position of the inlet pipe and the availability of the check were determined using Computer Aided Engineering (CAE) tools. By moving the position of the inlet pipe from the top to the bottom of the housing, the direction of the rotation of the ball was reversed, and the behavior changed significantly. It was found that the Magnus force, which causes the ball to levitate by rotating it in the opposite direction to the flow, acts to shorten the floating time. Full article
(This article belongs to the Special Issue Modelling the Behaviour of Water Systems to Increase Sustainability)
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13 pages, 3364 KiB  
Article
Free Flow and Discharge Characteristics of Trapezoidal-Shaped Weirs
by Yebegaeshet T. Zerihun
Fluids 2020, 5(4), 238; https://0-doi-org.brum.beds.ac.uk/10.3390/fluids5040238 - 10 Dec 2020
Cited by 10 | Viewed by 4145
Abstract
A number of studies have considered the effects of weir design variations on the free- and submerged-flow characteristics of trapezoidal broad-crested weirs. It appears that the hydraulics of short-crested weir flows have received little attention; thus, the current knowledge is incomplete. By systematically [...] Read more.
A number of studies have considered the effects of weir design variations on the free- and submerged-flow characteristics of trapezoidal broad-crested weirs. It appears that the hydraulics of short-crested weir flows have received little attention; thus, the current knowledge is incomplete. By systematically analyzing a large set of experimental data, the present study aims to fill in this knowledge gap and to provide a complete description of the discharge characteristics of trapezoidal-shaped weirs, including the salient features of two-dimensional weir flows. The analysis of the axial free-surface profiles for short-crested weir flows attested that the location of the nearest station for the correct measurement of the overflow depth under free-flow conditions is at η0  from the heel of the weir, where η0  is the upstream free-surface elevation. Additionally, an empirical equation for the free-flow discharge coefficient is proposed as being valid for a trapezoidal-shaped weir with varying upstream- and downstream-face slopes. The results of this investigation reveal that the streamline curvature and the slopes of the upstream and downstream weir faces significantly affect the streamwise flow patterns and, hence, the free-flow discharge. Full article
(This article belongs to the Special Issue Modelling the Behaviour of Water Systems to Increase Sustainability)
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