Conserving Soil and Water for Society: Sharing Solutions Paper No. 611 page 1 COMPARISON OF SEVEN PARTICLE SETTLING VELOCITY FORMULAE FOR EROSION

Soil erosion and deposition models based on the governing mass balance equation require knowledge of the settling characteristics of sediment. Seven formulae were selected from the literature for comparison in terms of their prediction of settling velocity. Two sets of measured settling velocity data found in the literature were used in the comparison. Results show that some formulae performed better in certain ranges of the grain size distribution. They also show that some formulae resulted in better overall prediction than others. Additional Keywords: deposition, grain siz