Idealized debris flow in flume with bed driven by a conveyor belt
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.
Citation Information
Publication Year | 1989 |
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Title | Idealized debris flow in flume with bed driven by a conveyor belt |
Authors | Chi-Hai Ling, Cheng-lung Chen |
Publication Type | Conference Paper |
Publication Subtype | Conference Paper |
Index ID | 70015498 |
Record Source | USGS Publications Warehouse |