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Water, Air, and Soil Pollution

, Volume 99, Issue 1–4, pp 173–177 | Cite as

Digital imaging characterization of the kinematics of water-sediment interaction

  • H. Capart
  • H. -H. Liu
  • X. Van Crombrugghe
  • D. -L. Young
Sediment/Water Dynamics

Abstract

Digital imaging techniques especially geared towards the laboratory characterization of the kinematics of water-sediment interaction are presented. More specifically, the methods proposed apply to the motion of cohesionless spherical particles in transient water flow, with the aim of obtaining both particle velocity and concentration fields from sequences of digital images. A special particle identification algorithm is devised in order to deal with densely packed particles (in contrast to the sparase seedings of tracers used in studies of pure fluid kinematics) and to allow application of digital particle tracking velocimetry (DPTV). A procedure for extracting the concentration field from the knowledge of the discrete positions is then detailed. Finally, the various tools are illustrated for the laboratory case of a dambreak wave over a movable bed.

Keywords

sediment transport transient flow fields laboratory measurements digital patricle tracking velocimetry 

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Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • H. Capart
    • 2
  • H. -H. Liu
    • 1
  • X. Van Crombrugghe
    • 3
  • D. -L. Young
    • 1
  1. 1.Dept. of CiviI Engineering and Hydruidic Research LaboratoryNational Taiwan UniversityTaipei, TaiwanChina
  2. 2.Fonds National de la Recherche Scientifique and Univ. Catholique de LouvainBelgium
  3. 3.Univ. Lihre de BruxellesBelgium

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