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Idealized debris flow in flume with bed driven by a conveyor belt

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Abstract

The generalized viscoplastic fluid (GVF) model is used to derive the theoretical expressions of two-dimensional velocities and surface profile for debris flow established in a flume with bed driven by a conveyor belt. The rheological parameters of the GVF model are evaluated through the comparison of theoretical results with measured data. A slip velocity of the established (steady) nonuniform flow on the moving bed (i.e., the conveyor belt) is observed, and a relation between the slip velocity and the velocity gradient at the bed is derived. Two belts, one rough and the other smooth, were tested. The flow profile in the flume is found to be linear and dependent on the roughness of the belt, but not much on its speed.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Idealized debris flow in flume with bed driven by a conveyor belt
ISBN:
0872627195
Year Published:
1989
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
First page:
1144
Last page:
1149
Number of Pages:
6
Conference Title:
Proceedings of the 1989 National Conference on Hydraulic Engineering
Conference Location:
New Orleans, LA, USA
Conference Date:
14 August 1989 through 18 August 1989