FLOW-FREEZING INTERACTION DURING FREEZE COATING ON A NONISOTHERMAL AXIALLY MOVING CYLINDER.

Research output: Contribution to journalConference articlepeer-review

Abstract

The process of freeze coating on a chilled continuous cylinder travelling steadily through a bath of otherwise quiescent warm liquid is studied analytically. The equations governing heat convection in the liquid flow field that is induced by the motion of the cylinder are solved simultaneously with the equations governing heat conduction in the freeze coat and the cylinder to determine the local heat transfer coefficient at the solid-liquid interface and the growth-and-decay behavior of the freeze coat. Results indicate that, under certain conditions, there is a strong interaction between the liquid flow field and the freezing process. Over the axial distances where the freeze coat is growing, the local convective heat transfer coefficient at the freezing front is found to be substantially larger than the corresponding value for the case of forced convection over a continuous moving cylinder without phase change. On the other hand, over the axial distances where the freeze coat is decaying, the local convective heat transfer coefficient is found to be smaller than the corresponding value without freezing.

Original languageEnglish (US)
JournalAmerican Society of Mechanical Engineers (Paper)
StatePublished - Jan 1 1987

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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