溶融速度への直方体加熱物体の寸法の影響

概要

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The effect of dimensions of a three-dimensional rectangular heated body on close-contact melting is studied numerically and analytically, taking into account the temperature distribution in the heated body in a constant temperature environment. The critical melting velocity, below which there exists a steady melting state, is found in an analytical form. The relationship between the melting velocity and the dimension of the heated body under influence of gravity is obtained using a finite difference method and scale analysis. The dependence of dimension on the melting velocity is distinguished into three cases. In the case where the width of the heated body is large compared with its height, the dimensionless melting velocity decreases slowly as the ratio of width to height increases. In the opposite case, the dimensionless melting velocity is constant. In the case where the height is slightly larger than the width, the melting velocity depends on the ratio of height to width in a complex manner. In the case where the width and the height are of the same order, the steady melting phenomenon occurs near the critical melting condition. Thus, this case yields an effective method for melting the phase-change material.
社団法人日本機械学会の論文
1994-12-25