2005 年 45 巻 5 号 p. 677-685
A physical and mathematical modeling study has been carried out to investigate mixing in a gas stirred ladle fitted with dual plugs, located diametrically opposite at ±1/2R positions. While conductivity measurement technique was applied to record 95% mixing times, mathematical modeling was carried out via the commercial CFD package FLUENT® wherein, a two phase flow calculation procedure based on discrete phase approach was adapted. It was demonstrated that numerically predicted flow and mixing times in general agree reasonably well with the corresponding experimental measurements.
In addition to the above, a relatively simple, quasi single phase flow calculation procedure, developed in-house, was also applied to predict mixing times and thereby, assess an earlier work. It is shown that the quasi single phase model, despite its simplicity, is reasonably effective in simulating mixing phenomena in such system. A comparison between different modeling approaches visa vis experimental measurements is also illustrated in the text.
