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Simulating Particle Erosion and Deposition in a Lagrangian Sand Transport Model

Book Chapter (2026)
Author(s)

Natascia Pannozzo (TU Delft - Civil Engineering & Geosciences)

Stuart G. Pearson (TU Delft - Civil Engineering & Geosciences)

Martin Meijer (University of Twente)

Tim de Wilde (Deltares)

Edwin Elias (Deltares)

Bram C. Van Prooijen (TU Delft - Civil Engineering & Geosciences)

Research Group
Coastal Engineering
DOI related publication
https://doi.org/10.1007/978-3-032-15477-4_89 Final published version
More Info
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Publication Year
2026
Language
English
Research Group
Coastal Engineering
Volume number
2
Pages (from-to)
593-599
Publisher
Springer Nature
ISBN (print)
['978-3-032-15476-7', '978-3-032-15479-8']
ISBN (electronic)
978-3-032-15477-4
Downloads counter
32
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Abstract

Employing Lagrangian particle tracking models for the study of coastal sediment transport dynamics is highly beneficial as they record the complete history of sediment transport pathways. Correctly simulating bed-particle interactions and its stochastic nature in Lagrangian models is essential to accurately estimate the direction and timescale of sediment transport. In this study we compare and assess the performance of two stochastic approaches for simulating particle erosion and deposition in Lagrangian sediment tracking models: 1) formulations proposed by Soulsby et al. (2011) that calculate probability of particles erosion and deposition from empirically-derived parameters and 2) newly-developed formulations that calculate probability of particles erosion and deposition from physical parameters. The two approaches are evaluated in the Lagrangian sediment tracking model SedTRAILS using a simulation of the dispersal of a pilot ebb-tidal delta nourishment in Ameland Inlet (Wadden Sea, Netherlands) as a case study. Our results show that the new physics-based approach represents the diffusive behavior of the nourished sediment better than the empirical approach. However, the new approach could not be fully validated yet, and the implementation of a slope term for bedload transport in the SedTRAILS transport formulations is necessary to further evaluate the new physics-based approach.