Open AccessA method for minimizing the zone of low water flow velocity in a bottom center drain circular aquaculture tank
Author(s) -
Sin MyongGuk,
An CholHo,
Cha SangJin,
Kim MyongJin,
Kim HyonNam
Publication year - 2021
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/jwas.12792
Subject(s) - hydraulics , aquaculture , flow velocity , marine engineering , flow (mathematics) , conservative vector field , mixing (physics) , minification , work (physics) , water flow , torus , engineering , fish <actinopterygii> , biology , mechanics , geotechnical engineering , fishery , mathematics , mechanical engineering , geometry , physics , mathematical optimization , aerospace engineering , quantum mechanics , compressibility
Bottom center drain circular tanks in which water is injected tangentially to the tank wall are widely used in aquaculture. However, a torus‐shaped region about the center drain can develop into an irrotational zone that generates low velocities and poor mixing. Many works have been devoted to improving tank hydraulics by making good use of the water flow pattern. However, mathematics‐friendly methods, such as the statistical optimization method, which is widely used in science and engineering, are rarely used in aquaculture tank designing. This work focuses on the minimization of the low velocity zone in a bottom center drain tank based on experimental planning and computational fluid dynamics. Model validation was carried out by comparison with measurements. The results show that the low velocity zone can be reduced measurebly by the proposed method.