Fluid-Structure Interaction in Civil Engineering

A special issue of Eng (ISSN 2673-4117). This special issue belongs to the section "Chemical, Civil and Environmental Engineering".

Deadline for manuscript submissions: 30 September 2026 | Viewed by 180

Special Issue Editor


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Guest Editor
School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
Interests: bridge hydrodynamics; bridge seismic engineering; Building Information Modeling (BIM) for bridges; intelligent construction

Special Issue Information

Dear Colleagues,

This Special Issue, entitled "Fluid-Structure Interaction in Civil Engineering", aims to highlight the latest advancements in the field of civil engineering, with a focus on innovative technologies and methods for fluid–structure interaction. This Special Issue features original research contributions from a diverse range of institutions and experts, covering the development and optimization of the fluid–structure interaction in civil engineering. In this context, fluid can be water, air, oil or any other substance capable of flowing, such as wind, currents, waves, floods, tides, tsunamis, liquid in a container, etc. Structures can comprise bridges, tunnels, roads, buildings, railways, highways, aqueducts or other infrastructure. Research methods can constitute theoretical deduction, numerical simulation, physical experiments, site observation, etc. Key topics include, but are not limited to, the following: (1) calculation methods of loads caused by fluids, such as calculation methods of wind load, wave load, flood load, hydrodynamic force, etc. (2) Interactions between fluids and structures. (3) Flow field analysis and generation mechanisms for exploring hydrodynamic force and structure failure. (4) Dynamic responses of structures under fluid action. (5) Damage modes or failure modes of structure under fluid actions. (6) Preventive measures or the optimum design of structures when considering the fluid–structure interaction.

This Special Issue not only explores new perspectives in theoretical research, numerical simulation, and physical experiments, but also focuses on cutting-edge developments of methods to solve fluid–structure interaction-induced problems to civil engineering in real practice. By showcasing researchers who are committed to pushing the boundaries of fluid–structure interaction, this Special Issue aims to foster innovation and interdisciplinary collaboration. Through this publication, we hope to inspire academia and industry to develop new strategies and technologies that contribute to a sustainable future, ultimately helping to reduce the fluid–structure interaction-induced problems found in civil engineering or to make fuller use of advantages brought by fluid–structure interaction to civil engineering.

Prof. Dr. Wanli Yang
Guest Editor

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Keywords

  • fluid–structure interaction
  • hydrodynamic force
  • flow field
  • vortex induced vibration
  • tsunami force
  • wave force
  • flood force
  • current force
  • tide force
  • wind load
  • pore water pressure
  • liquid sloshing
  • dynamic response
  • structure failure
  • failure mode
  • preventive measure
  • optimum design

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Published Papers (1 paper)

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Research

35 pages, 15541 KB  
Article
Coupled CFD–DEM Modeling of Sinkhole Development Due to Exfiltration from Buried Pipe Defects
by Jun Xu, Bryce Vaughan and Fei Wang
Eng 2025, 6(12), 365; https://doi.org/10.3390/eng6120365 - 14 Dec 2025
Viewed by 82
Abstract
Leakage from defective buried pipelines can lead to progressive soil erosion and void formation, ultimately resulting in ground collapse or sinkhole development. To better understand the underlying mechanisms of this process, this research utilizes a coupled computational fluid dynamics (CFD)–discrete element method (DEM) [...] Read more.
Leakage from defective buried pipelines can lead to progressive soil erosion and void formation, ultimately resulting in ground collapse or sinkhole development. To better understand the underlying mechanisms of this process, this research utilizes a coupled computational fluid dynamics (CFD)–discrete element method (DEM) modeling approach to investigate soil erosion processes driven by water leakage from defective underground pipelines. The numerical model captures fluid–particle interactions at both macroscopic and microscopic scales, providing detailed insights into erosion initiation, void zone evolution, and particle transport dynamics under varying hydraulic and geometric conditions. Parametric studies were conducted to evaluate the effects of exfiltration pressure, defect size, and particle diameter on erosion behavior. Results show that erosion intensity and particle migration increase with hydraulic pressure up to a threshold, beyond which compaction and particle bridging reduce sustained transport. The intermediate defect size (12.7 mm) consistently produced the most continuous and stable erosion channels, while smaller and larger defects exhibited localized or asymmetric detachment patterns. Particle size strongly influenced erosion susceptibility, with finer grains mobilized more readily under the same flow conditions. The CFD–DEM simulations successfully reproduce the nonlinear and self-reinforcing nature of internal erosion, revealing how hydraulic gradients and particle rearrangement govern the transition from local detachment to large-scale cavity development. These findings advance the understanding of subsurface instability mechanisms around leaking pipelines and provide a physically consistent CFD–DEM framework that aligns well with published studies. The model effectively reproduces the key stages of erosion observed in the literature, offering a valuable tool for assessing erosion-induced risks and for designing preventive measures to protect buried infrastructure. Full article
(This article belongs to the Special Issue Fluid-Structure Interaction in Civil Engineering)
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