固気二相流解析による南極建屋周りの積雪予測

概要

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The removal of snowdrifts resulting from snowstorms is often physically intensive work in Antarctica. Therefore, it is important to consider snowdrift around buildings in construction planning. In this study, we predicted snowdrift using a small experimental facility and existing numerical-analysis software that can be easily implemented. First, the snow cover around a cube model resulting from a snowstorm was calculated through numerical analysis. And the validity of numerical analysis was examined. It was shown clearly that the solid-gas two phase flow numerical analysis could respond to the wide range value of the number of Stokes which is a parameter with which snow particles follow a motion of an air current enough. To consider the effect of the form of a proposed Antarctic building on snowdrift, the snowdrift around buildings of an Antarctic base was then predicted by numerical analysis. As a result, it is thus expected that work involved in removing snowdrifts can be reduced through the appropriate design of curved-roof Antarctic buildings employing numerical analysis.