Mobility Parameter and Sand Grain Size Effect on Sediment Transport Over Vortex Ripples in the Orbital Regime
نویسندگان
چکیده
منابع مشابه
Patterns in hydraulic binary size sand grain ripples
An experimental study of a sand bed submitted to a transient water shear flow in a vertical axis cylindrical container is reported. The appearance of spontaneous phase segregation in the spiral ripple patterns is shown. Larger grains are observed to segregate on the downstream part of the ripples, while the smaller ones segregate on the upstream part. The relative repose angles between sand spe...
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Using new large-scale wave-flume experiments we examine the cross-section and planform geometry of wave-formed ripples in coarse sand (median grain sizeD50 = 430 μm) under high-energy shoaling and plunging random waves. We find that the ripples remain orbital for the full range of encountered conditions, even for wave forcing when in finer sand the ripple length λr is known to become independen...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Earth Surface
سال: 2019
ISSN: 2169-9003
DOI: 10.1029/2018jf004741