A Method to Study Suspended Sediment Induced Flow Characteristics Changes

by D. Zhou,
C. Mendoza,



Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water

Abstract:

Sediment-laden turbulent flows occur in nature and through man-made hydraulic structures. Our current understanding of this two-phase flow phenomenon is incomplete, and many important questions remain open. In this paper, an approach that accounts for the effects of the dynamic coupling between the flow and the sediment in suspension is presented. The analysis is based on the Boussinesq approximation for the fluid-sediment mixture momentum equation and the simple notion that a sediment-laden turbulent flow is a perturbed clear-water turbulent flow. The adopted approach, while establishing a viable framework for further study of the dynamics of turbulent sediment-laden streamflows, sheds additional light on the physics of this complex phenomenon.

Subject Headings: Turbulent flow | Suspended sediment | Hydraulic structures | Sediment | Fluid flow | Suspended structures | Streamflow

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