6533b863fe1ef96bd12c7bf0

RESEARCH PRODUCT

Sediment-flow interactions and effects on bed forms mechanism

Donatella TerminiVincenzo Sammartano

subject

Turbulent flow Morphodynamics in river coherent structures bed formsSettore ICAR/01 - Idraulica

description

Recent experimental works conducted in mobile bed rectilinear flume seem to verify the existence of a correspondence between the spatial periodicity of horizontal turbulent structures evolving in streamwise direction and the wavelength of bed forms (alternate bars) observed on the bed. In this study, the effect of the variation of the bed roughness conditions on the evolution of such horizontal turbulent structures is analyzed. Peculiar results obtained by using flow velocity data collected along the flume both with flat bed and with deformed bed are reported.

http://hdl.handle.net/10447/47751