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Journal of Hydrodynamics

, Volume 30, Issue 5, pp 966–969 | Cite as

A novel two-way method for dynamically coupling a hydrodynamic model with a discrete element model (DEM)

  • Yan Xiong (熊焱)
  • Qiuhua Liang
  • Samantha Mahaffey
  • Mohamed Rouainia
  • Gang Wang (王岗)
Article
  • 47 Downloads

Abstract

The effect of floating objects has so far been little considered for hazard risk assessment and structure design, despite being an important factor causing structural damage in flood-prone and coastal areas. In this work, a novel two-way method is proposed to fully couple a shock-capturing hydrodynamic model with a discrete element model (DEM) for simulation of complex debris-enriched flow hydrodynamics. After being validated against an idealized analytical test, the new coupled model is used to reproduce flume experiments of floating debris driven by dam-break waves. The numerical results agree satisfactorily with the experimental measurements, demonstrating the model’s capability and efficiency in simulating complex fluid-debris interactions induced by violent shallow flows.

Key words

Coupled model discrete element model (DEM) extreme hydraulic conditions floating debris shallow water equations Godunov-type finite volume method 

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References

  1. [1]
    Rossetto T., Peirisb N., A. Pomonis S. et al. The Indian Ocean tsunami of December 26, 2004: Observations in Sri Lanka and Thailand [J]. Natural Hazards, 2007, 42(1): 105–124.CrossRefGoogle Scholar
  2. [2]
    Nistor I., N. Goseberg J., Stolle T. et al., Experimental investigations of debris dynamics over a horizontal plane [J]. Journal of Waterway, Port, Coastal, and Ocean Engineering, 2016, 143(3): 04016022.CrossRefGoogle Scholar
  3. [3]
    Nistor I., Goseberg N., Stolle J. Tsunami-driven debris motion and loads: A critical review [J]. Frontiers in Built Environment, 2017, 3: 2.CrossRefGoogle Scholar
  4. [4]
    O'Brien J. F., Zordan V. B., Hodgins J. K. Combining active and passive simulations for secondary motion [J]. IEEE Computer Graphics and Applications, 2000, 20(4): 86–96.CrossRefGoogle Scholar
  5. [5]
    Qiu L. C., Jin F., Lin P. Z. et al. Numerical simulation of submarine landslide tsunamis using particle based methods [J]. Journal of Hydrodynamics, 2017, 29(4): 542–551.CrossRefGoogle Scholar
  6. [6]
    Zhao J., Shan T. Coupled CFD–DEM simulation of fluid–particle interaction in geomechanics [J]. Powder Technology, 2013, 239(17): 248–258.CrossRefGoogle Scholar
  7. [7]
    Zhong W., Yu A., Liu X. et al. DEM/CFD-DEM modelling of non-spherical particulate systems: Theoretical developments and applications [J]. Powder Technology, 2016, 302: 108–152.CrossRefGoogle Scholar
  8. [8]
    Ruiz-Villanueva V., Castellet E. B., Díez-Herrero A. et al. Two-dimensional modelling of large wood transport during flash floods [J]. Earth Surface Processes and Landforms, 2014, 39(4): 438–449.CrossRefGoogle Scholar
  9. [9]
    Hopkins M. A. Discrete element modeling with dilated particles [J]. Engineering Computations, 2004, 21(2-4): 422–430.CrossRefzbMATHGoogle Scholar
  10. [10]
    Chen L., Sun L., Zang J. et al. Numerical study of roll motion of a 2-D floating structure in viscous flow [J]. Journal of Hydrodynamics, 2016, 28(4): 544–563.CrossRefGoogle Scholar
  11. [11]
    Liang Q., Borthwick A. G. Adaptive quadtree simulation of shallow flows with wet–dry fronts over complex topography [J]. Computers and Fluids, 2009, 38(2): 221–234.MathSciNetCrossRefzbMATHGoogle Scholar
  12. [12]
    Chow V. T. Open channel hydraulics [M]. New York, USA: McGraw Hill, 1959.Google Scholar
  13. [13]
    Liang Q., Chen K. C., Hou J. et al. Hydrodynamic modelling of flow impact on structures under extreme flow conditions [J]. Journal of Hydrodynamics, 2016, 28(2): 267–274.CrossRefGoogle Scholar

Copyright information

© China Ship Scientific Research Center 2018

Authors and Affiliations

  • Yan Xiong (熊焱)
    • 1
  • Qiuhua Liang
    • 1
    • 2
  • Samantha Mahaffey
    • 3
  • Mohamed Rouainia
    • 3
  • Gang Wang (王岗)
    • 1
  1. 1.State Key Laboratory of Hydrology-Water Resources and Hydraulic EngineeringHohai UniversityNanjingChina
  2. 2.School of Architecture, Building and Civil EngineeringLoughborough UniversityLoughboroughUK
  3. 3.School of EngineeringNewcastle UniversityNewcastle upon TyneEngland, UK

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