Abstract
Numerous data on bed profile have been investigated yet the analysis to predict bed profile formation especially related to sediment properties are still insufficient. Objectives of this study to determine significant bed elevation profile pattern formed based on the complexity of sediment properties especially related to sediment size. The investigation is made by carried out a computer simulation of straight channel pattern with the fixed bank and movable sand bed. The study included the various hydraulic characteristics with steady flow rates and sediment properties. The simulations focus on three different sediment sizes with other variables namely channel size, flow rate and bed slope were kept constant. Analysis has included the discussion on a significant difference of bed elevation profile formed along the lateral and longitudinal distance. As a conclusion, the sediment size alone does not significantly change the bed elevation profile as its only gave minor effect to the bed profile changes.
Highlights
The discussion of the influence of sediment properties in the river is yet varied as its very complex for the interpretations
The analysis focused on the existent of erosion and deposition process since it can significantly change the bed profile formation
The software used to analyze the bed profiled of the channel due to varying sediment size
Summary
The discussion of the influence of sediment properties in the river is yet varied as its very complex for the interpretations. The sediment properties include sediment size, shape, density, the angle of repose and fall velocity. These properties related to each other to make it more complex. According to Maria Rådoane et al [1], the formation of bed profiled influenced by the sediment size. According to Mohd Ekhwan Toriman et al [2], the deposition of sand much depends on the grain size of sediment that influences bed load profiles formation in the channel. The sediment size influenced the rate of bed shear stress indirectly influenced the formation of bed profile in the channel
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