Particle Image Velocimetry (PIV) for Granular Avalanches on Inclined Planes

  • Winfried Eckart
  • John Mark Nicholas Timm Gray
  • Kolumban hutter
Chapter
Part of the Lecture Notes in Applied and Computational Mechanics book series (LNACM, volume 11)

Abstract

This paper is concerned with experimental results of sand avalanches flowing down inclined plexiglass chutes with lateral confinement. We introduce the Particle Image Velocimetry (PIV) technique for granular avalanches and discuss the differences in its implementation compared to standard PIV. Surface and side-wall velocity measurements are described at different downslope chute locations and for four different inclination angles. The PIV-system provides a good measuring technique to determine flow velocities of granular avalanches. The flow behaviour for the smallest inclination angle investigated here deviates significantly from the other results as the avalanche reaches a terminal velocity. This gives valuable indications for the right choice of a bed friction law.

Keywords

Particle Image Velocime Inclination Angle Granular Material Granular Avalanche Main Error Source 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Winfried Eckart
    • 1
  • John Mark Nicholas Timm Gray
    • 2
  • Kolumban hutter
    • 1
  1. 1.Institute of MechanicsDarmstadt University of TechnologyDarmstadtGermany
  2. 2.Department of MathematicsUniversity of ManchesterManchesterUK

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