Numerical Study on Sand Retarding Basins With Various Aspcect Ratios and Presence of Driftwood

Key Points

• This research aims to investigate how the width of sand retarding basins affects sediment capture efficiency.
• Conducted numerical analysis to study the impact of various aspect ratios on sediment retention.
• Compared results with previous experiments to validate model accuracy.
• Evaluated a range of conditions using new two-dimensional and three-dimensional modeling of flow and driftwood.
• Larger aspect ratios increase sediment retention; however, ratios above 5 yield diminishing returns.
• Inclusion of driftwood significantly reduces sediment discharge, confirming previous findings.