Depth Averaged Models in Hydraulics: Modeling, Numerics and Applications

Topic Information

Dear Colleagues,

In hydraulic engineering, free surface water flows are commonly described by means of the shallow water equations (also called the Saint-Venant equations) and closely related models. Despite their simplicity, this description is valid in many applications in hydraulics and as such has a long tradition of providing a scientific basis for engineering practice. To this end, shallow water equations arise in modelling water flows in rivers, canals, lakes, reservoirs, coastal and urban areas and many other situations in which the water depth is much smaller than the horizontal length scale of motion. As such, shallow water and closely related equations are widely used in oceanography and atmospheric sciences to model, among others, hazardous phenomena as hurricanes/typhoons and tsunamis.

This Topic aims to provide a forum for the latest advanses in hydraulic modeling based on the use of shallow water and related models as well as their novel application in practical engineering. Original contributions in the following areas, though not exclusively, will be considered for publication: new conseptual models and applications, flood inundation and routing, sedimend transport and morphodynamic modelling, pollutant transport in water, irrigation and drainage modeling, numerical simulation in hydraulics, novel numerical methods for the shallow water equations and extended models, case studies, and high-performance computing.

Prof. Dr. Anargiros I. Delis
Prof. Dr. Aly Seadawy
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Energies energies	3.2	5.5	2008	16.1 Days	CHF 2600	Submit
Mathematics mathematics	2.4	3.5	2013	16.9 Days	CHF 2600	Submit
Water water	3.4	5.5	2009	16.5 Days	CHF 2600	Submit
Fractal and Fractional fractalfract	5.4	3.6	2017	18.9 Days	CHF 2700	Submit
Fluids fluids	1.9	2.8	2016	20.7 Days	CHF 1800	Submit

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Published Papers (2 papers)

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All Energies Mathematics Water Fractal Fract Fluids

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18 pages, 9273 KiB  

Open AccessArticle

Numerical Simulation and Application of Radial Steel Gate Structure Based on Building Information Modeling under Different Opening Degrees

by Shaonan Sun, Ruijie Zhang, Xiaojie Liu, Chunlu Liu and Ailing Wang

Water 2024, 16(5), 636; https://doi.org/10.3390/w16050636 - 21 Feb 2024

Viewed by 771

Abstract

The safe and stable operation of the radial gate is highly essential for hydropower stations. As the dynamic load of gate, water flow generally causes the irregular distribution of strength, stiffness, and the stability of the gate structure. Traditional simulation technology is usually [...] Read more.

The safe and stable operation of the radial gate is highly essential for hydropower stations. As the dynamic load of gate, water flow generally causes the irregular distribution of strength, stiffness, and the stability of the gate structure. Traditional simulation technology is usually used to investigate the impact of water flow on gate structure; however, there is a lack of integration and interaction of building information modeling (BIM) and numerical simulation technology to study this issue. Therefore, this paper proposed a computational framework combing BIM and numerical simulation to calculate and analyze the large complex hydraulic radial steel structure. Firstly, the 3D model of the radial gate was established by MicroStation2020, then, the finite element model was output by using it. Secondly, the change laws of strength, stiffness, and stability of the radial gate were analyzed by Ansys-Workbench2020R2 under different opening degrees. The numerical simulation results show that the maximum equivalent stress value was 142.19 MPa, which occurred at the joint between the lower longitudinal beam and the door blade. The maximum deformation was 3.446 mm, which occurred at two longitudinal beams’ middle in the lower part of the panel. When the opening degree is 0.0 m–9.0 m, the natural vibration frequency increases irregularly with the increase in the opening of the gate. Three main vibration modes of the gate vibration were obtained. It proves that it is feasible to analyze the structural performance of radial gates by using BIM and numerical simulation. Finally, the BIM and numerical simulation information management process was established to make the simulation results more valuable. This study expands the application value of BIM and provides a new research idea for large complex hydraulic steel structural analysis. The information management process described in this research can serve as a guide for gate operation and maintenance management. Full article

(This article belongs to the Topic Depth Averaged Models in Hydraulics: Modeling, Numerics and Applications)

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26 pages, 32687 KiB  

Open AccessArticle

A Risk-Based Approach for the Analysis of Flood Impact in Villahermosa (Tabasco, Mexico)

by Mackendy Ceragene, Rosanna Bonasia, Luis Cea and Maria de la O Cuevas-Cancino

Water 2023, 15(22), 3969; https://doi.org/10.3390/w15223969 - 15 Nov 2023

Viewed by 1722

Abstract

Floods in Villahermosa are events that have occurred frequently over the centuries, due to the city’s location at the mouth of two of the most powerful rivers in Mexico. Flooding effects on residents have become increasingly damaging over the years as a consequence [...] Read more.

Floods in Villahermosa are events that have occurred frequently over the centuries, due to the city’s location at the mouth of two of the most powerful rivers in Mexico. Flooding effects on residents have become increasingly damaging over the years as a consequence of the increase in frequency and intensity of extreme weather phenomena, in addition to poor land-use planning policies. The increase in population and consequent urban expansion are certainly causes of the problem, which are reflected in poor urban planning policy and in an almost absent perception of risk. In this work, we present a methodology for the construction of flood risk maps based on a hydraulic study, analysis of social vulnerability indexes, calculation of severity indexes and construction of hazard maps. The results of the hydraulic simulations show that relatively frequent rainfall causes floods of the order of 2 m, in agreement with annual observations conducted in Villahermosa. More extreme rainfall can lead to flooding greater than 4 m in marginalized areas of the city. The areas at greatest risk are sections close to the rivers that cross the city, and the estimated economic damage is greater than USD 14 million. Risk maps presented here constitute the first effort of an integrated study to couple flood analysis with the calculation of economic damage in the city of Villahermosa, and provide important tools to conscientize populations in their perception of risk, but also create the basis for a conscious urbanization policy. Full article

(This article belongs to the Topic Depth Averaged Models in Hydraulics: Modeling, Numerics and Applications)

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