Research Article Open Access

Transverse Bed-Slope, Lateral Bed-Load Rate and Bed-Load Deviation Angle in Meandering Alluvial Streams

Youssef Ismail Hafez1
  • 1 Independent Researcher, Egypt

Abstract

A novel expression for the deviation angle of the bed-load discharge is developed which allows its distinction with the other deviation angles of the flow velocity and boundary shear stress. A transverse bed-slope equation is developed which compares very well with experimental data and field data at the Fall River and Muddy Creek, USA. Stream-wise computations are successfully performed of the transverse bed slopes in the Fall River. Correction for the thickness of the bed-load layer in curved channels and expression for the lateral distribution of grain sizes are presented. A contribution is made in developing the upslope lateral bed-load transport rate equation which allows modification of well-known existing transverse bedload rate equations. An expression of the stream-wise bed-load transport in curved and meandering channels is proposed. The developed approach equations have a higher degree of physical realism than existing methods.

American Journal of Environmental Sciences
Volume 20 No. 1, 2024, 48-63

DOI: https://doi.org/10.3844/ajessp.2024.48.63

Submitted On: 15 May 2024 Published On: 9 September 2024

How to Cite: Hafez, Y. I. (2024). Transverse Bed-Slope, Lateral Bed-Load Rate and Bed-Load Deviation Angle in Meandering Alluvial Streams. American Journal of Environmental Sciences, 20(1), 48-63. https://doi.org/10.3844/ajessp.2024.48.63

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Keywords

  • Meandering Open Channels
  • Transverse Bed Slope
  • Deviation Angle of The Bed-Load
  • Lateral Bed Load Transport Rate
  • Stream-Wise Bed-Load Transport in Curved Channels