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Numerical Modelling in Hydraulic Engineering

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

Deadline for manuscript submissions: 20 September 2025 | Viewed by 406

Special Issue Editor

School of Civil and Mechanical Engineering, Curtin University, Bentley, WA 6102, Australia
Interests: pipeline engineering; renewable energy; subsea cables; offshore risers; vibration and failure analysis; offshore structures; decommissioning strategies; hydrogen storage; structural integrity management; CCUS (carbon capture, utilization, and storage); hydrodynamic simulations; climate resilience in subsea infrastructure
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Special Issue Information

Dear Colleagues,

In recent years, numerical modelling has significantly advanced our understanding and optimization of coastal and hydraulic engineering processes. The integration of computational techniques with field applications has enabled researchers and engineers to develop predictive models for wave dynamics, sediment transport, and structural resilience in coastal and offshore environments.

This Special Issue aims to highlight the latest research and practical developments in numerical modelling for coastal and hydraulic engineering. We welcome contributions that explore innovative  methodologies, novel computational frameworks, and interdisciplinary approaches that address key challenges in this field.

The scope of this Special Issue includes, but is not limited to, the following topics:

  • The advanced numerical modelling of waves, currents, and sediment transport in coastal and estuarine systems;
  • Fluid–structure interaction modelling for breakwaters, seawalls, and offshore structures;
  • Computational approaches to risk assessment, hazard prediction, and climate change adaptation;
  • Large-scale hydrodynamic simulations and their applications in harbor and offshore engineering;
  • The modelling-based optimization of shore protection, dredging strategies, and nature-based solutions;
  • Coupled hydro-morphodynamic models for coastal erosion and beach evolution studies;
  • AI-driven and machine learning applications in coastal and hydraulic modelling;
  • Case studies demonstrating numerical model validation and real-world applications.

This Special Issue will explore emerging trends, innovative modelling techniques, and their impact on the sustainability and resilience of coastal and hydraulic infrastructure.

Dr. Ahmed Reda
Guest Editor

Manuscript Submission Information

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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

  • coastal numerical modelling
  • hydrodynamic simulations
  • fluid–structure interaction
  • sediment transport modelling
  • offshore and harbor engineering
  • risk assessment and hazard prediction
  • AI and machine learning in hydraulic modelling
  • climate change adaptation strategies
  • nature-based coastal protection
  • numerical validation and field applications

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Published Papers (1 paper)

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Research

26 pages, 5582 KiB  
Article
Integrated Hydrologic–Hydraulic Modeling Framework for Flood Risk Assessment of Rural Bridge Infrastructure in Northwestern Pakistan
by Muhammad Kashif, Wang Bin, Hamza Shams, Muhammad Jhangeer Khan, Marwa Metwally, S. K. Towfek and Amal H. Alharbi
Water 2025, 17(13), 1893; https://doi.org/10.3390/w17131893 - 25 Jun 2025
Viewed by 227
Abstract
This study presents a flood risk assessment of five rural bridges along the monsoon-prone Khar–Mohmand Gat corridor in Northwestern Pakistan using an integrated hydrologic and hydraulic modeling framework. Hydrologic simulations for 50- and 100-year design storms were performed using the Hydrologic Engineering Center’s [...] Read more.
This study presents a flood risk assessment of five rural bridges along the monsoon-prone Khar–Mohmand Gat corridor in Northwestern Pakistan using an integrated hydrologic and hydraulic modeling framework. Hydrologic simulations for 50- and 100-year design storms were performed using the Hydrologic Engineering Center’s Hydrologic Modeling System (HEC-HMS), with watershed delineation conducted via Geographic Information Systems (GIS). Calibration was based on regional rainfall data from the Peshawar station using a Soil Conservation Service Curve Number (SCS-CN) of 86 and time of concentration calculated using Kirpich’s method. The resulting hydrographs were used in two-dimensional hydraulic simulations using the Hydrologic Engineering Center’s River Analysis System (HEC-RAS) to evaluate water surface elevations, flow velocities, and Froude numbers at each bridge site. The findings reveal that all bridges can convey peak flows without overtopping under current climatic conditions. However, Bridges 3 to 5 experience near-critical to supercritical flow conditions, with velocities ranging from 3.43 to 4.75 m/s and Froude numbers between 0.92 and 1.04, indicating high vulnerability to local scour. Bridge 2 shows moderate risk, while Bridge 1 faces the least hydraulic stress. The applied modeling framework effectively identifies structures requiring priority intervention and demonstrates a practical methodology for assessing flood risk in ungauged, data-scarce, and semi-arid regions. Full article
(This article belongs to the Special Issue Numerical Modelling in Hydraulic Engineering)
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