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Understanding the Impact of Mesh on Tank Overflow System Capacity
Author(s) -
Burkhardt Jonathan B.,
Goodrich James A.,
Szabo Jeff,
Hall John,
Crosby Jake,
Tourney Seth,
Clement Robert
Publication year - 2018
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/awwa.1162
Subject(s) - pressure drop , weir , roof , environmental science , flow (mathematics) , computer science , marine engineering , engineering , civil engineering , mechanics , physics , cartography , geography
A 2016 incident that resulted in damage to a water storage tank's roof motivated pilot‐scale experiments to be conducted to determine the impact of mesh on tank overflow capacity. A clean mesh installed near the outlet of an overflow system did not reduce the capacity during the weir‐dominated flow regime. Mesh was found to reduce the area available to flow, which was found to lower the achievable capacity through the system. Considering only the head loss or pressure drop associated with the mesh, and not area reduction, resulted in an overestimation of achievable capacity, which could lead to an undersized overflow system. The results and formulas presented will help water utilities ensure that overflow systems with mesh are appropriately sized.