Federici & Seminara (2003) have recently shown that the nature of bar instability if the sediment is transported mainly as bed load is convective. In the present paper, we extend the above work to the case when a significant portion of the sediment load is carried in suspension. We employ a depth averaged approach suitable to slowly varying flows which leads to the analytical form for the flux of suspended sediment recently derived by Bolla Pittaluga & Seminara (2003).
On the convective nature of bar instability: the effect of suspended load.
FEDERICI, BIANCA;BOLLA PITTALUGA, MICHELE;SEMINARA, GIOVANNI
2003-01-01
Abstract
Federici & Seminara (2003) have recently shown that the nature of bar instability if the sediment is transported mainly as bed load is convective. In the present paper, we extend the above work to the case when a significant portion of the sediment load is carried in suspension. We employ a depth averaged approach suitable to slowly varying flows which leads to the analytical form for the flux of suspended sediment recently derived by Bolla Pittaluga & Seminara (2003).
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