SR McLean - Earth-Science Reviews, 1990 - Elsevier
… By assuming a realistic lag based on the mechanics of bed load transport, a fastest growing wave at ripple-scales results: similarly, if suspended sediment were included, longer lags …
… dune and ripple formation and for a clarification of the debated role of ripples on the formation of dunes. … flow and sediment transport rates than do ripples; however, ripples often form on …
F Engelund, J Fredsoe - Annual Review of Fluid Mechanics, 1982 - annualreviews.org
… When the tractive force is increased to the point where sediment transport starts, the bed will be unstable. In the case of fine sediment, ripples are formed, while coarse sediments …
AJ Raudkivi - Journal of Hydraulic Engineering, 2006 - ascelibrary.org
… the bed at small excess bed shear stress; whereas dunes interact with the total flow. In small … of dunes, postulated that in a flow—which is saturated to carrying capacity with sediment—…
… Oscillating fluid motions accompanying waves and tides also generate sedimentary ripples and dunes. The ripples formed by translational waves (8, 9) are especially noteworthy …
… We identify two types of bedforms consistent with subaqueous ripples and dunes, and … of sediment transport we provide a new unifying framework to compare ripples and dunes in …
KJ Richards - Journal of Fluid Mechanics, 1980 - cambridge.org
… Primary ripples are then … ripples become unstable and form secondary ripples with a larger form drag. Liu (1 957) proposes that the sediment bed acts as a viscous fluid and that ripples …
… 5a–b), where bedform orientation is controlled by orientation of a sediment source (source-bordering dunes), where a flow changes to a new direction (either through time or with …
JM Nelson, JD Smith - Journal of Geophysical Research …, 1989 - Wiley Online Library
… sediment-bed interactions comprises the basis for developing better methods for computing effective roughnesses of channels in which ripples or dunes … of sediment transport on rippled …