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Hydrodynamics Science Experiments and Simulations, 3rd Edition
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Hydrodynamics Science Experiments and Simulations, 3rd Edition

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydraulics and Hydrodynamics".

Deadline for manuscript submissions: 30 August 2026 | Viewed by 1935

Special Issue Editors

Dr. Yonggang Lu

E-Mail Website
Guest Editor
School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: hydroturbine; pump turbine; gas–liquid two-phase flow; solid–liquid two-phase flow; abrasion; CFD
Special Issues, Collections and Topics in MDPI journals
Dr. Yandong Gu

E-Mail Website
Guest Editor
College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou, China
Interests: impeller pumps; rotor–stator cavity; fluid lubrication; unsteady flow; hydraulic design
Special Issues, Collections and Topics in MDPI journals
Dr. Wenwu Zhang

E-Mail Website
Guest Editor
College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100191, China
Interests: pumps; gas–liquid two-phase flow; unsteady flow; hydraulic design
Special Issues, Collections and Topics in MDPI journals
Dr. Yongyao Luo

E-Mail Website
Guest Editor
Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China
Interests: hydrodynamics simulation; pump turbine; tidal energy; multi-phase Flow
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Hydrodynamic experiments and simulations play a crucial role in scientific research, enabling us to understand and predict fluid movements and interactions across various environments. This knowledge is essential in fields such as ship design, coastal engineering, and hydraulic engineering. For instance, hydrodynamic simulations allow us to optimize ship designs for improved efficiency and stability, as well as predict and mitigate potential accidents in coastal hydraulic engineering.

The study of hydrodynamics typically encompasses three methods: theoretical analysis, field measurements, and laboratory experiments, along with numerical simulations. Among these, hydrodynamic experiments and simulations are critical for accurately determining key parameters such as the pressure drop and minimum fluidization velocity in gas–solid fluidization. These studies enhance our comprehension of fluid dynamics’ complexity and provide vital tools for analyzing and predicting related issues.

In summary, hydrodynamic experiments and simulations are fundamental for understanding and managing fluid behavior in various environments. They equip us with the predictive capabilities and technological improvements necessary to effectively address future challenges.

This Special Issue will cover, but is not limited to, the following topics:

  • New methods and models for the numerical simulation of hydrodynamics;
  • Innovative experimental methods and equipment for hydrodynamic studies;
  • Cavitation, vortex, and multiphase flow in hydraulic machinery;
  • Hydro, tidal, and ocean energy.

Dr. Yonggang Lu
Dr. Yandong Gu
Dr. Wenwu Zhang
Dr. Yongyao Luo
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 250 words) can be sent to the Editorial Office for assessment.

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 semimonthly 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 2600 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

  • hydrodynamic experiment
  • hydrodynamic simulation
  • hydraulic machinery
  • multiphase flow
  • hydro energy technology

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  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
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  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Related Special Issues

Published Papers (3 papers)

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Research

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24 pages, 16389 KB  
Article
Particle Motion Behavior and Erosion Wear Mechanisms in a Mining Pump Under Slurry Transport Condition
by Yonggang Lu, Mengjiao Min, Yanzhi Li, Zhiwang Liu, Wenxuan Liu, Bo Gao and Weiqiang Zhao
Water 2026, 18(10), 1131; https://doi.org/10.3390/w18101131 - 9 May 2026
Viewed by 441
Abstract
With the rapid depletion of terrestrial mineral resources, the global demand for deep-sea mineral resource exploitation has become increasingly urgent. The hydraulic lifting system centered on deep-sea mining pumps is internationally recognized as the most commercially viable deep-sea mining system. In this paper, [...] Read more.
With the rapid depletion of terrestrial mineral resources, the global demand for deep-sea mineral resource exploitation has become increasingly urgent. The hydraulic lifting system centered on deep-sea mining pumps is internationally recognized as the most commercially viable deep-sea mining system. In this paper, a deep-sea mining pump is taken as the research object, and the flow and wear characteristics of solid–liquid multiphase transport within the pump are investigated. Results show that as particle concentration increases, the non-uniformity of pressure and velocity distributions in the impeller flow channel also increases, indicating that particle-induced disturbances significantly compromise flow field uniformity. As the particle diameter increases, the wear dead angle area continues to expand, and the wear patterns and extents on each surface of the impeller and guide vane differ significantly. The particle collision frequency, particle kinetic energy, flow field structure, and shielding effects collectively influence the variation in wear amount. Full article
(This article belongs to the Special Issue Hydrodynamics Science Experiments and Simulations, 3rd Edition)
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25 pages, 4877 KB  
Article
The Influence of Hydropower Plant Operational Scenarios on Maintaining the Navigable Depths in an Anthropized River Reach: A Case Study on the Danube River in Slovakia Downstream of the Gabčíkovo Hydropower Plant
by Peter Šulek and Daniel Buček
Water 2026, 18(7), 800; https://doi.org/10.3390/w18070800 - 27 Mar 2026
Viewed by 450
Abstract
The hydropower plant, together with its reservoir, makes it possible to modify the natural flow regime. These changes can affect sediment transport dynamics and cause morphological changes in the river. If the river is also used as a waterway, the operational scenario of [...] Read more.
The hydropower plant, together with its reservoir, makes it possible to modify the natural flow regime. These changes can affect sediment transport dynamics and cause morphological changes in the river. If the river is also used as a waterway, the operational scenario of the hydropower plant can have a significant impact on sediment deposition, thereby reducing its navigable depths and increasing the risk of vessel–riverbed collisions. In this study, a 2D hydrodynamic model of the Danube River downstream of the Gabčíkovo Hydropower Plant (GHP) in Slovakia was developed to evaluate the influence of operational scenarios on maintaining the required navigable depths and to determine the most suitable scenario in terms of fairway maintenance costs. The operational scenario of the GHP influences the amount of sediment deposited downstream of the plant. The volume of deposition in the critical ford was approximately 50% smaller under hydropeaking than under run-of-river operation. The increase in riverbed elevation during hydropeaking was 33% to 64% lower than under run-of-river operation. The study results indicate that this reach of the Danube can remain navigable for a longer period without intervention (dredging), thanks to sufficient navigable depth maintained by erosion caused by hydropeaking, compared to run-of-river operation. Full article
(This article belongs to the Special Issue Hydrodynamics Science Experiments and Simulations, 3rd Edition)
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Review

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19 pages, 1034 KB  
Review
Review on Process Intensification of Non-Thermal Plasma Oxidation in Multiphase Reactor for Wastewater Treatment: Mass Transfer Enhancement and Waste Energy-Driven Conversion
by Hao Chen, Jiahui Zhai, Yuhao Ji, Wenhao Song, Yamin Hu, Sirong He, Lili Qian and Shuang Wang
Water 2026, 18(6), 649; https://doi.org/10.3390/w18060649 - 10 Mar 2026
Cited by 1 | Viewed by 776
Abstract
Non-thermal plasma-driven advanced oxidation is a promising method for treating organic wastewater, which exhibits rapid reaction kinetics and high pollutant removal and does not need chemical reagents. However, its practical application is often limited by high specific energy consumption and the inefficient mass [...] Read more.
Non-thermal plasma-driven advanced oxidation is a promising method for treating organic wastewater, which exhibits rapid reaction kinetics and high pollutant removal and does not need chemical reagents. However, its practical application is often limited by high specific energy consumption and the inefficient mass transfer of short-lived reactive species across the gas–liquid interface. This review summarizes the fundamentals of non-thermal plasma chemistry and the process intensification of plasma multiphase reactors by mass transfer enhancement and waste energy-driven conversion. This review focus on four coupling approaches: microbubble-assisted plasma to expand the reactive interfacial area; plasma coupled with hydraulic cavitation to enhance convection and radical formation; plasma–piezoelectric catalysis coupling to harvest hydraulic energy and promote charge-driven reactions; and plasma-assisted Fenton oxidation to improve the utilization of weakly oxidizing species (H2O2). The energy efficiency of various plasma-based oxidation systems is compared and discussed clearly. Key remaining challenges are also discussed, including standardized energy efficiency assessment, scale-up and hydrodynamic control, catalyst stability and fouling, by-product formation and toxicity, and long-term operational reliability. Overall, this review aims to provide guidance for developing efficient plasma-based wastewater treatment systems for large-scale applications. Full article
(This article belongs to the Special Issue Hydrodynamics Science Experiments and Simulations, 3rd Edition)
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