Physical modeling of oscillation effect on fluid flow in mold

This paper focuses on physical modeling of oscillation effect. Two new similarity criterions, π<sub>1</sub> = fl/ v and π<sub>2</sub> = A / l, characterizing the effect of frequency and amplitude respectively on fluid flow, are obtained by dimension analysis method. Based on...

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Bibliographic Details
Published in:Metalurgija
Main Authors: H. J. Wu, Y. Xu, Z. R. Huo, F. Yue, P. Y. Lu
Format: Article
Language:English
Published: Croatian Society for Materials Protection 2015-07-01
Subjects:
continuous casting
modeling
mold oscillation
similarity criterion
fluctuation
surface velocity
Online Access:http://hrcak.srce.hr/file/194437
Description
Summary:This paper focuses on physical modeling of oscillation effect. Two new similarity criterions, π<sub>1</sub> = fl/ v and π<sub>2</sub> = 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.
ISSN:0543-5846
1334-2576

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