The purpose of this investigation was twofold: (1) to present the results of an experimental investigation of the solidification rates for water at its fusion temperature in falling-film flow inside a short vertical tube and (2) to compare the experimental results to those predicted from the expression developed by London and Seban [1]. The experimental data were in good agreement with those values predicted by their expression when evaluated on a weight-of-ice-formed basis. However, the liquid-solid interface radius rs could be determined with reasonable accuracy only for large values of rs. It was shown that by increasing the temperature difference across the ice field, closer agreement was obtained in both cases. It is believed that erosion of the ice by the liquid falling film is responsible for most of the deviations.

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