Mathematical Modeling of Iron and Steel Making Processes. Effect of Magnetic Field Conditions on the Electromagnetic Braking Efficiency

Autor: Takehiko Toh, K. Kaneko, Takeuchi Eiichi, Hiroshi Harada, Takanobu Ishii
Rok vydání: 2001
Předmět:
Zdroj: ISIJ International. 41:1236-1244
ISSN: 0915-1559
Popis: Effect of different types of in-mold electromagnetic brake (EMBr) technique, which forms a local magnetic field and a level magnetic field in the width direction of a mold, on the fluid flow phenomena in the strand pool was examined. A mercury model experiment revealed that the level magnetic field developed a plug-like flow in the strand pool, of which flow could not be obtained by the local magnetic field. Surface velocity near the meniscus could be stably controlled with the level magnetic field, while in the case of the local magnetic field, this surface velocity was greatly affected by the nozzle condition. Numerical analysis clarified the characteristics in the distribution of an induced electric current density and Lorentz force, and explained the flow behavior with the local and level magnetic fields, respectively.
Databáze: OpenAIRE