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Prof. Dr. Guohua Zhang
School of Sustainable Energy, China University of Geosciences, Wuhan, China
School of Engineering, China University of Geosciences, Wuhan, China
Dr. Xiaobo Zhang
School of Infrastructure Engineering, Nanchang University, Nanchang 330031, China
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Hydraulic Engineering and Modelling

Abstract submission deadline
30 September 2026
Manuscript submission deadline
30 November 2026
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Topic Information

Dear Colleagues,

Fractured rock masses, common in geological and hydraulic environments, often experience complex physical conditions such as geostress, high temperatures, osmotic pressure, and chemical interactions. These conditions lead to discontinuous, anisotropic, and nonlinear deformation and flow behavior, making the analysis of fractured systems both scientifically challenging and practically important. The coupled interactions among thermal, hydraulic, mechanical, and chemical (THMC) fields within such rock masses govern critical processes related to seepage, stability, and energy transfer. Understanding these multiphysics interactions is essential for improving the design and safety of caverns, tunnels, dams, underground reservoirs, and geothermal systems and for preventing geological hazards in complex subsurface projects.

We welcome original research and review articles on theoretical modeling, laboratory experimentation, and high-fidelity numerical simulations focused on nonlinear flow, fracture network connectivity, thermal–hydraulic–mechanical (THM) coupling, and AI-driven interpretation of rock mass behavior. Topics of interest include, but are not limited to, the following aspects:

  • Nonlinear and coupled multiphysics modeling of fractured media
  • Fluid flow and heat transport in complex fracture networks
  • Discrete fracture network (DFN) modeling and upscaling
  • AI and machine learning in geological interpretation and hydraulic behavior prediction
  • Seepage analysis and geotechnical safety in tunnels, reservoirs, and underground structures
  • Intelligent modeling of hydraulic properties under deformation (shear/normal loading)
  • Applications in geothermal reservoirs, underground compressed air storage, and hydro-engineering

By fostering interdisciplinary exchange across hydraulic engineering, geomechanics, and computational geoscience, this Topic aims to advance simulation techniques and sustainable practices in subsurface engineering and water resource management。

Prof. Dr. Guohua Zhang
Dr. Feng Xiong
Dr. Xiaobo Zhang
Topic Editors

Keywords

  • hydraulic engineering
  • fractured rock mechanics
  • multiphysics coupling (THMC)
  • nonlinear seepage flow
  • discrete fracture networks (DFN)

Participating Journals

Journal Name Impact Factor CiteScore Launched Year First Decision (median) APC
Applied Sciences
applsci 		2.5 5.5 2011 19.8 Days CHF 2400 Submit
Hydrology
hydrology 		3.2 5.9 2014 15.7 Days CHF 1800 Submit
Journal of Marine Science and Engineering
jmse 		2.8 5.0 2013 15.6 Days CHF 2600 Submit
Water
water 		3.0 6.0 2009 19.1 Days CHF 2600 Submit
Eng
eng 		2.4 3.2 2020 19.7 Days CHF 1400 Submit

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Published Papers (2 papers)

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29 pages, 4280 KiB  
Article
Pore Structure and Fractal Characteristics of Coal Rocks Under Variable Moisture Content Increment Cycles Using LF-NMR Techniques
by Hongxin Xie, Yanpeng Zhao, Daoxia Qin, Hui Liu, Yaxin Xing, Zhiguo Cao, Yong Zhang, Liqiang Yu and Zetian Zhang
Water 2025, 17(13), 1884; https://doi.org/10.3390/w17131884 - 25 Jun 2025
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Abstract
The spatiotemporal heterogeneity of moisture distribution causes the coal pillar dams in underground water reservoirs to undergo long-term dry–wet cycles (DWCs) under varying moisture content increments (MCIs). Accurately measuring the pore damage and fractal dimensions (Df) of coal rock by [...] Read more.
The spatiotemporal heterogeneity of moisture distribution causes the coal pillar dams in underground water reservoirs to undergo long-term dry–wet cycles (DWCs) under varying moisture content increments (MCIs). Accurately measuring the pore damage and fractal dimensions (Df) of coal rock by different MCIs under DWCs is a prerequisite for in-depth disclosure of the strength deterioration mechanism of underground reservoir coal pillar dams. This study employed low-field nuclear magnetic resonance (LF-NMR) to quantitatively characterize the pore structural evolution and fractal dimension with different MCI variations (Δw = 4%, 6%, 8%) after one to five DWCs. The results indicate that increasing MCIs at constant DWC numbers (NDWC) induces significant increases in pore spectrum area, adsorption pore area, and seepage pore area. MRI visualization demonstrates a progressive migration of NMR signals from sample peripheries to internal regions, reflecting enhanced moisture infiltration with higher MCIs. Total porosity increases monotonically with MCIs across all tested cycles. Permeability, T2 cutoff (T2C), and Df of free pores exhibit distinct response patterns. A porosity-based damage model further reveals that the promoting effect of cycle numbers on pore development and expansion outweighs that of MCIs at NDWC = 5. This pore-scale analysis provides essential insights into the strength degradation mechanisms of coal pillar dams under hydro-mechanical coupling conditions. Full article
(This article belongs to the Topic Hydraulic Engineering and Modelling)
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22 pages, 6482 KiB  
Article
Similar Physical Model Experimental Investigation of Landslide-Induced Impulse Waves Under Varying Water Depths in Mountain Reservoirs
by Xingjian Zhou, Hangsheng Ma and Yizhe Wu
Water 2025, 17(12), 1752; https://doi.org/10.3390/w17121752 - 11 Jun 2025
Viewed by 353
Abstract
Landslide-induced impulse waves (LIIWs) are significant natural hazards, frequently occurring in mountain reservoirs, which threaten the safety of waterways and dam project. To predict the impact of impulse waves induced by Rongsong (RS) potential landslide on the dam, during the layered construction period [...] Read more.
Landslide-induced impulse waves (LIIWs) are significant natural hazards, frequently occurring in mountain reservoirs, which threaten the safety of waterways and dam project. To predict the impact of impulse waves induced by Rongsong (RS) potential landslide on the dam, during the layered construction period and maximum water level operation period of Rumei (RM) Dam (unbuilt), a large-scale three-dimensional similar physical model with a similarity scale of 200:1 (prototype length to model length) was established. The experiments set five water levels during the dam’s layered construction period and recorded and analyzed the generation and propagation laws of LIIWs. The findings indicate that, for partially granular submerged landslides, no splashing waves are generated, and the waveform of the first wave remains intact. The amplitude of the first wave exhibits stable attenuation while the third one reaches the largest. After the first three columns of impulse waves, water on the dam surface oscillates between the two banks. This study specifically discusses the impact of different water depths on LIIWs. The results show that the wave height increases as the water depth decreases. Two empirical formulas to calculate the wave attenuation at the generation area and to calculate the maximum vertical run-up height on the dam surface were derived, showing strong agreement between the empirical formulas and experimental values. Based on the model experiment results, the wave height data in front of the RM dam during the construction and operation periods of the RM reservoir were predicted, and engineering suggestions were given for the safety height of the cofferdam during the construction and security measures to prevent LIIW overflow the dam top during the operation periods of the RM dam. Full article
(This article belongs to the Topic Hydraulic Engineering and Modelling)
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