Journal of the Japanese Society for Experimental Mechanics
Print ISSN : 1346-4930
ISSN-L : 1346-4930
Original Papers
Amplitude Measurement of Swirl Motion in a Cylindrical Bath Agitated by Intermittent Gas Injection
Manabu IGUCHIYusuke SAKAITomoya NAKAJIMAMoriyoshi SHITARAYoshiaki UEDARyoji TSUJINO
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2015 Volume 15 Issue 1 Pages 24-29

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Abstract

   Gas injection is commonly used for agitating a molten metal bath in the refining processes such as the AOD process. Many water model experiments have been carried out to find out efficient injection methods. In the current processes gas is injected under steady state condition. The purpose of this study is to experimentally investigate the possibility of efficiency enhancement by unsteady gas injection. A J-shaped lance is used for intermittent air injection into a cylindrical water bath. The amplitude of the deep-water wave type of swirl motion is measured using a digital camera. The measured value of the amplitude became smaller than that observed under the steady gas injection.

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© 2015 The Japanese Society for Experimental Mechanics
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