Open AccessControl of the mixing time in vessels agitated by submerged recirculating jets
Author(s) -
Stephen Kennedy,
Pradipto K. Bhattacharjee,
Sati N. Bhattacharya,
Nicky Eshtiaghi,
Rajarathinam Parthasarathy
Publication year - 2018
Publication title -
royal society open science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 51
ISSN - 2054-5703
DOI - 10.1098/rsos.171037
Subject(s) - mixing (physics) , nozzle , jet (fluid) , mechanics , residence time (fluid dynamics) , work (physics) , suction , volume (thermodynamics) , residence time distribution , environmental science , flow (mathematics) , control theory (sociology) , computer science , physics , mechanical engineering , engineering , control (management) , thermodynamics , geotechnical engineering , quantum mechanics , artificial intelligence
Submerged recirculating jet mixing systems are an efficient and economical method of agitating large tanks with a high hydraulic residence time. Much work has been carried out in developing design correlations to aid the predictions of the mixing time in such systems, with the first such correlation being developed nearly 70 years ago. In most of these correlations, the mixing time depends directly on the volume of the vessel and inversely on the injection velocity of the submerged jet. This work demonstrates, for the first time, that the distance between the injection and suction nozzles also significantly affects the mixing time and can be used to control this time scale. The study introduces a non-dimensional quantity that can be used as an adjustable parameter in systems where such control is desired.