On the Limits of the Geometric Scale Ratio Using Water Modeling in Ladles

Scaled-down models have been extensively employed to study fluid flow phenomena in metallurgical ladles. The geometric scale factor in the models employed varies by one order of magnitude. A minimum value for the geometric scale factor for metallurgical ladles has not been reported before. In this s...

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Bibliographic Details
Published in:Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2021-08, Vol.52 (4), p.2263-2274
Main Authors: Conejo, Alberto N., Zhao, GenAn, Zhang, Lifeng
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Computational fluid dynamics
Dynamic similarity
Electrical resistivity
Flow velocity
Fluid flow
Gas flow
Kinematics
Ladles
Materials Science
Metallic Materials
Metallurgical analysis
Metals
Nanotechnology
Nozzles
Original Research Article
Position measurement
Reynolds number
Scale (ratio)
Structural Materials
Surfaces and Interfaces
Thin Films
Time measurement
Values
Viscosity
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Summary:Scaled-down models have been extensively employed to study fluid flow phenomena in metallurgical ladles. The geometric scale factor in the models employed varies by one order of magnitude. A minimum value for the geometric scale factor for metallurgical ladles has not been reported before. In this study, mixing time in four different geometric scale ladles with one nozzle was measured as a function of gas flow rate, nozzle radial position, and oil thickness, using the electric conductivity method. Dynamic similarity was discussed in detail. Mixing time predicted and measured, according with dynamic similarity principles, was evaluated for the four ladles. The main finding from this work is that in principle dynamic, similarity can be achieved in all four ladles with different geometric scale ratios; however, it is evident that the experimental conditions can impose a limit to the geometric scale ratio.
ISSN:1073-5615
1543-1916
DOI:10.1007/s11663-021-02170-1