Thermal interaction in crusted melt jets with large-scale structures

The objective of the present study is to experimentally observe thermal interaction, which is capable of triggering, due to water entrained, or entrapped within crusted melt jets with 'large-scale structures'. The present experiment was carried out by dropping molten zinc and molten tin of 100 g. These were sufficient to generate large-scale structures of melt jets. The results showed that the entrapment-type thermal interaction occurs in molten-zinc jets with rare probability, and the entrainment-type thermal interaction occurs in molten tin jets with high probability. The difference in thermal interaction between the molten zinc and molten tin is considered to be mainly due to a difference in kinematic viscosity between them. (C) 1999 Elsevier Science S.A. All rights :reserved.