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Fluid flow behaviour of liquid in cylindrical vessels stirred by one or two air jets
Author(s) -
Zhang Lifeng,
Taniguchi Shoji,
Cai Kaike,
Qu Ying
Publication year - 2000
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.200001324
Subject(s) - nozzle , physics , radius , mechanics , thermodynamics , turbulence , jet (fluid) , computer security , computer science
In the present paper, based on the two‐phase model (Eulerian‐Eulerian model), the three‐dimensional fluid flow in water system and liquid steel system stirred by one or two gas jets is simulated. A new modified k ‐∊ turbulence model is introduced to consider the bubbles movement contribution to k and ∊. The mathematical simulation agrees well with the experimental results. Calculation indicates that the distance of the two jet nozzles has a big effect on the fluid flow behaviour. Placing two gas injection nozzles at the half radii of one diameter of the bottom generates a much better mixing than that injected by only one nozzle with the same total gas flow rate.