抄録
Fundamental study on a solidifying phenomenon in a rectangular water-saturated porous medium was carried out. The system is cooled from the upper boundary and heated from below. In this study, the dynamic response of the solid-liquid interface to the periodical temperature fluctuation of the cooling surface was considered in detail. Especially, the amplitude of solid-liquid interface and the phase lag to the time-varying cooling temperature were monitored for various periods and cooling temperatures. One and Two-Dimensional numerical calculation was carried out to analyze the phenomena. The two results agree well. It is found that the amplitude of interface position increases in proportion to the temperature fluctuation period, and that both the thicker solid layer and the shorter period cause the greater phase lag.
