Flow resistance and hydraulic geometry in contrasting reaches of a bedrock channel
نویسندگان
چکیده
منابع مشابه
Controls and limits on bedrock channel geometry
[1] Data on channel geometry in naturally incising bedrock rivers reveal variable relationships between channel width, slope, and erosion rate. To explain the range of relationships between these parameters, we propose an optimized channel geometry model. The model reproduces previous theoretical and numerical modeling scaling relationships; however, to explain the field data, the model must in...
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چکیده ندارد.
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In the Manning equation the hydraulic radius can be defined as the cross-section dimension of the shape. In pipe flow the bed shear stress is assumed to be uniformly distributed along the wetted perimeter which cannot be true in open channel flow. Hence, three approximation of the true boundary shear-stress distribution are examined and more practical conveyance depth or resistance radius formu...
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ژورنال
عنوان ژورنال: Water Resources Research
سال: 2017
ISSN: 0043-1397
DOI: 10.1002/2016wr020233