Settling velocities of coarse organic solids
Abstract The settling velocity of a particle is an integral parameter in stormwater modeling and design. The settling velocity can be used to predict the fate and transport of stormwater particles and if the particles contribute to nutrient loading in a watershed. Prediction of settling velocity for...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-39645-x |
| _version_ | 1797752780657524736 |
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| author | Aaron J. Pietsch John A. Chapman |
| author_facet | Aaron J. Pietsch John A. Chapman |
| author_sort | Aaron J. Pietsch |
| collection | DOAJ |
| description | Abstract The settling velocity of a particle is an integral parameter in stormwater modeling and design. The settling velocity can be used to predict the fate and transport of stormwater particles and if the particles contribute to nutrient loading in a watershed. Prediction of settling velocity for inorganic particles is generally well-researched and well-understood. Organic particles tend to vary widely in their physical properties and there are currently no set standards or empirical equations for estimating the settling velocity of organic particles. This paper presents data from tree leaves and seeds settling velocity experiments to better understand how organic particles settle in the context of settling velocity equations such as the one developed by Ferguson and Church. Analysis of the collected data showed that the second of the two drag coefficients (C2) used in the Ferguson and Church Equation was sensitive to particle type and shape. By averaging C2 by particle type and species, there was a correlation between the observed settling velocity and the settling velocity predicted by the Ferguson and Church Equation (R2 = 0.83). With these results, stormwater modelers and designers are equipped with a better understanding of how to represent common organic particles in terms of settling velocity. Additional research on a wider variety of organic particle types and species would expand on the dataset presented here. |
| first_indexed | 2024-03-12T17:08:29Z |
| format | Article |
| id | doaj.art-a963c8b558d34a99b167a27eb1fbd058 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-12T17:08:29Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-a963c8b558d34a99b167a27eb1fbd0582023-08-06T11:14:40ZengNature PortfolioScientific Reports2045-23222023-08-0113111110.1038/s41598-023-39645-xSettling velocities of coarse organic solidsAaron J. Pietsch0John A. Chapman1Department of Bioproducts and Biosystems Engineering, University of Minnesota, Twin CitiesDepartment of Bioproducts and Biosystems Engineering, University of Minnesota, Twin CitiesAbstract The settling velocity of a particle is an integral parameter in stormwater modeling and design. The settling velocity can be used to predict the fate and transport of stormwater particles and if the particles contribute to nutrient loading in a watershed. Prediction of settling velocity for inorganic particles is generally well-researched and well-understood. Organic particles tend to vary widely in their physical properties and there are currently no set standards or empirical equations for estimating the settling velocity of organic particles. This paper presents data from tree leaves and seeds settling velocity experiments to better understand how organic particles settle in the context of settling velocity equations such as the one developed by Ferguson and Church. Analysis of the collected data showed that the second of the two drag coefficients (C2) used in the Ferguson and Church Equation was sensitive to particle type and shape. By averaging C2 by particle type and species, there was a correlation between the observed settling velocity and the settling velocity predicted by the Ferguson and Church Equation (R2 = 0.83). With these results, stormwater modelers and designers are equipped with a better understanding of how to represent common organic particles in terms of settling velocity. Additional research on a wider variety of organic particle types and species would expand on the dataset presented here.https://doi.org/10.1038/s41598-023-39645-x |
| spellingShingle | Aaron J. Pietsch John A. Chapman Settling velocities of coarse organic solids Scientific Reports |
| title | Settling velocities of coarse organic solids |
| title_full | Settling velocities of coarse organic solids |
| title_fullStr | Settling velocities of coarse organic solids |
| title_full_unstemmed | Settling velocities of coarse organic solids |
| title_short | Settling velocities of coarse organic solids |
| title_sort | settling velocities of coarse organic solids |
| url | https://doi.org/10.1038/s41598-023-39645-x |
| work_keys_str_mv | AT aaronjpietsch settlingvelocitiesofcoarseorganicsolids AT johnachapman settlingvelocitiesofcoarseorganicsolids |