Abstract
Stochastic bed load transport formulas for nonuniform sediment exist, but most of them do not account for the composition of surface material to predict fractional transport rate. This study transformed a surface-based bed-load transport predictor to a stochastic one by approximating the fluctuation of bed-shear stress with a standard log-normal distribution. The deterministic predictor underpredicts fractional transport rate at low values of bed-shear stress and Reynolds number. The modified stochastic predictor predicts fractional transport rate more accurately and converges to the deterministic one at high shear stresses.
Original language | English (US) |
---|---|
Pages (from-to) | 350-353 |
Number of pages | 4 |
Journal | Journal of Hydraulic Engineering |
Volume | 134 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2008 |
Keywords
- Bed materials
- Predictions
- Sediment transport
- Shear stress
ASJC Scopus subject areas
- Civil and Structural Engineering
- Water Science and Technology
- Mechanical Engineering