2021 Nashville AISTech

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Modeling of Air-Mist Spray in the Continuous Casting of Steel (Room 208 A)

Intense and uniform spray cooling in continuous casting is beneficial to forming high-strength steel. Air-mist spray is one of the promising technologies to achieve high-rate heat transfer due to the significant reduction in water droplet size, as a result of the strong air-water interaction in the spray nozzle. The current study numerically investigated the air-water interaction, water droplet formation and droplet-slab impingement heat transfer in order to fully understand the mechanism of the high heat transfer rate by air-mist spray compared to the conventional hydraulic spray and to provide guidance for the operation of air-mist spray.