Original scientific paper

Physical modeling of oscillation effect on fluid flow in mold

H. J. Wu ; Engineering Research Institute, University of Science and Technology Beijing, Beijing, China
Y. Xu ; Engineering Research Institute, University of Science and Technology Beijing, Beijing, China
Z. R. Huo ; No. 2 Steelmaking Plant, Shanxi Taigang Stainless Steel Co. Ltd., Taiyuan, China
F. Yue ; Engineering Research Institute, University of Science and Technology Beijing, Beijing, China
P. Y. Lu ; Engineering Research Institute, University of Science and Technology Beijing, Beijing, China

Abstract

This paper focuses on physical modeling of oscillation effect. Two new similarity criterions, π₁ = fl/ v and π₂ = A / l, characterizing the effect of frequency and amplitude respectively on fluid flow, are obtained by dimension analysis method. Based on the similarity principle and the boundary layer theory, a full-scale water model experiment was carried out. Oscillation affected more on fluctuation than surface velocity. Frequency, especially high-frequency, has a greater impact on fluctuation than amplitude does. Compared with non-oscillation, the wave heights have a 300 % increase at 160 r/min frequency and 10 mm amplitude, while the surface velocity has a 15 % rise.

Keywords

continuous casting; modeling; mold oscillation; similarity criterion; fluctuation; surface velocity

Hrčak ID:

131598

URI

https://hrcak.srce.hr/131598

Publication date:

1.7.2015.

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