On Some Positive Effects of the Swirling Flow for Continuous Casting: Numerical study on heat and mass transfer of steel casting billet moulds - Couverture souple

Kholmatov, Shavkat

 
9783639099799: On Some Positive Effects of the Swirling Flow for Continuous Casting: Numerical study on heat and mass transfer of steel casting billet moulds
Couverture souple
ISBN 10 : 3639099796 ISBN 13 : 9783639099799
Editeur : VDM Verlag Dr. Müller, 2009

Synopsis

Continuous caster mould is the last and important stage in the steelmaking process where inclusions can be either generated or removed. With increasing casting speed using conventional immersion nozzles critical problems, such as unstable bulk mould flow, have been noticed. Mould flux entrapment due to vortex and shearing action from the oscillating surface waves have become of particular concern. It is, therefore, necessary to have a calm inlet flow at the entrance of the mould. Recently, it has been acknowledged that a swirl blade placed at the upstream end of the nozzle effectively resolves these problems. Therefore, to increase our knowledge on swirling flow fundamental mathematical models of a billet mould equipped with a swirl blade in the nozzle have been developed. The model is used to study the effects of changing nozzle tilt angle and mould aspect ratio on heat and mass transfer in the round and square moulds. Data from water model experiments are used to verify the mathematical model predictions. A fairly good agreement between physical modeling data and predictions was found, which ensured that the numerical models are reliable.

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Présentation de l'éditeur

Continuous caster mould is the last and important stage in the steelmaking process where inclusions can be either generated or removed. With increasing casting speed using conventional immersion nozzles critical problems, such as unstable bulk mould flow, have been noticed. Mould flux entrapment due to vortex and shearing action from the oscillating surface waves have become of particular concern. It is, therefore, necessary to have a calm inlet flow at the entrance of the mould. Recently, it has been acknowledged that a swirl blade placed at the upstream end of the nozzle effectively resolves these problems. Therefore, to increase our knowledge on swirling flow fundamental mathematical models of a billet mould equipped with a swirl blade in the nozzle have been developed. The model is used to study the effects of changing nozzle tilt angle and mould aspect ratio on heat and mass transfer in the round and square moulds. Data from water model experiments are used to verify the mathematical model predictions. A fairly good agreement between physical modeling data and predictions was found, which ensured that the numerical models are reliable.

Biographie de l'auteur

Shavkat Kholmatov was born in Khujand, Tajikistan. From the early years Shavkat was passionate in learning science and pursued an engineering career. He obtained his MSc degree from Royal Institute of Technology (KTH), Stockholm in 2005. And since July 2008 he has been working at Corus CRDT in IJmuiden, Netherlands.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag Dr. Müller
Date d'édition
2009
Langue
anglais
ISBN 10 
3639099796
ISBN 13 
9783639099799
Reliure
Broché
Nombre de pages
52
Coordonnées du fabricant
non disponible
Personne responsable
non disponible