Numerical Modeling for Cooling Process of a Moving Hot Plate by a Laminar Water Curtain

The present paper is concerned with a predictable model for the temperature change of a horizontally moving hot steel plate cooled by a laminar water curtain. The numerical results calculated by the model presented here give a fairly close agreement with the results of cooling test. The effect of th...

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Bibliographic Details
Published in:ISIJ International 1989/11/15, Vol.29(11), pp.919-925
Main Authors: Hatta, Natsuo, Osakabe, Hiroyuki
Format: Article
Language:English
Subjects:
cooling process
laminar water curtain
moving hot plate
numerical model
slit nozzle
temperature history
traveling velocity
wetting and non-wetting
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Summary:The present paper is concerned with a predictable model for the temperature change of a horizontally moving hot steel plate cooled by a laminar water curtain. The numerical results calculated by the model presented here give a fairly close agreement with the results of cooling test. The effect of the traveling velocity of the hot plate on the cooling intensity has been examined from a numerical as well as experimental point of view. It has been found that the film boiling occurs even on the water impinging surface beyond a certain traveling velocity, and therefore the cooling intensity is decreased to an appreciable degree. It has been suggested from such facts that there is a critical velocity determining whether the film boiling occurs or not.
ISSN:0915-1559
1347-5460
DOI:10.2355/isijinternational.29.919