Optimizing Separation Efficiency in CSOs using CFD

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00385116" target="_blank" >RIV/68407700:21110/25:00385116 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Optimizing Separation Efficiency in CSOs using CFD
Original language description
Combined sewer overflows (CSOs) pose a major issue in urban drainage, especially during intense rainfall when system capacity is exceeded. Efficient separation of suspended solids in CSO structures is crucial to limit pollution entering receiving waters. This study explores how design parameters affect separation efficiency in a pipe-type CSO using computational fluid dynamics. The CSO was modeled using a VOF model combined with Lagrangian particle tracking representing pollution. Design variables such object length and overflow slot geometry shape were evaluated under varying flow rates. The results confirm that longer chambers significantly improve separation efficiency due to increased residence time. Changes in slot geometry, however, had only a limited and inconsistent impact, suggesting a secondary role influenced by specific flow conditions.
Czech name
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Czech description
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Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Sborník příspěvků odborné konference SVK STOKA 2025
ISBN
978-80-01-07434-3
ISSN
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e-ISSN
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Number of pages
9
Pages from-to
60-68
Publisher name
katedra vodního hospodářství obcí
Place of publication
Praha
Event location
Mariánská
Event date
Jun 23, 2025
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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