@article{1ce4b683c45a4293828a0d3b7157a9a3,
title = "On the Effects of Turbulence Modulation Driven by Suspended Sediment Stratification in Emergent Rigid Canopies",
abstract = "Aquatic vegetation has the potential to increase suspended sediment capture while also increasing sediment resuspension and bedload transport. Suspended sediment can induce density stratification, which modulates the turbulence in the water column. We derive a Rouse-based formulation for suspended sediment concentration (SSC) including the effect of sediment-induced density stratification. We perform Large Eddy Simulations of vegetated and non-vegetated channels to explicitly highlight the effect of stratification on SSC profiles. We found that the impact of stratification is dominant in the near-bed region within the bottom boundary layer, affecting both sediment resuspension and bedload transport. Stratification reduces the likelihood of both dominant sweep and ejection events in the near the bed region which may affect sediment entrainment and bedload transport. Modifications to existing models of sediment entrainment and bedload transport are suggested to account for the effects of sediment induced stratification in vegetated and non-vegetated channels.",
keywords = "bedload transport, stratification, suspended sediment, turbulence modulation, vegetation",
author = "Pallav Ranjan and Tinoco, {Rafael O.}",
note = "We would like to thank Prof. Paul Fischer, Prof. Som Dutta, and Dr. Ketan Mittal for their valuable contribution during the initial stages of the project. We would also like to acknowledge the detailed feedback from the three anonymous reviewers which significantly improved the manuscript. This research is part of the Blue Waters sustained‐petascale computing project, supported by the National Science Foundation (awards OCI‐0725070 and ACI‐1238993) and the state of Illinois. Blue Waters is a joint effort of the University of Illinois and its National Center for Supercomputing Applications. This study was partially supported by NSF through CAREER EAR 1753200. We would like to thank Prof. Paul Fischer, Prof. Som Dutta, and Dr. Ketan Mittal for their valuable contribution during the initial stages of the project. We would also like to acknowledge the detailed feedback from the three anonymous reviewers which significantly improved the manuscript. This research is part of the Blue Waters sustained-petascale computing project, supported by the National Science Foundation (awards OCI-0725070 and ACI-1238993) and the state of Illinois. Blue Waters is a joint effort of the University of Illinois and its National Center for Supercomputing Applications. This study was partially supported by NSF through CAREER EAR 1753200.",
year = "2024",
month = jan,
doi = "10.1029/2023JF007197",
language = "English (US)",
volume = "129",
journal = "Journal of Geophysical Research: Earth Surface",
issn = "2169-9003",
publisher = "John Wiley & Sons, Ltd.",
number = "1",
}