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Alluvial channel resistance related to bed form
Existing data from flume tests over ripple or dune beds are used to investigate variation of resistance to flow with shear velocity; there are certain conditions of flow at which ripples reach maximum stage of development, offering maximum resistance to flow; similar conclusion is made for dune bed form; comparing flows over same bed material, it is suggested that maximum stage of ripple development occurs at same value of shear velocity, irrespective of depth; maximum stage of dune development occurs at same value of ratio of average flow velocity to shear velocity, irrespective of depth; canal data show similar characteristics to flume data, only over limited range.
Alluvial channel resistance related to bed form
Existing data from flume tests over ripple or dune beds are used to investigate variation of resistance to flow with shear velocity; there are certain conditions of flow at which ripples reach maximum stage of development, offering maximum resistance to flow; similar conclusion is made for dune bed form; comparing flows over same bed material, it is suggested that maximum stage of ripple development occurs at same value of shear velocity, irrespective of depth; maximum stage of dune development occurs at same value of ratio of average flow velocity to shear velocity, irrespective of depth; canal data show similar characteristics to flume data, only over limited range.
Alluvial channel resistance related to bed form
ASCE -- Proc (J Hydraulics Div)
Smith, K.V.H. (author)
1968
11 pages
Article (Journal)
English
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Alluvial Channel Resistance Related to Bed Form
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