Video Analysis of Gravel Saltation

by Yarko Ni?o, Univ of Illinois at Urbana-Champaign, Urbana, United States,
Marcelo Garc?a, Univ of Illinois at Urbana-Champaign, Urbana, United States,
Luis Ayala, Univ of Illinois at Urbana-Champaign, Urbana, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

Experimental results concerning saltation characteristics of gravel particles in a movable bed channel are analyzed by using video imaging techniques. Ensemble averaged values of saltation height, saltation length, and particle mean streamwise velocity are presented and compared with available experimental data. Ensemble averages of the dynamic friction coefficient, associated with particle collisions with the bed, are also estimated with the help of the video movies.

Subject Headings: Computer vision and image processing | Salts | River and stream beds | Particle velocity | Gravels | Bed materials | Soil analysis

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