Requirements for modeling of a snowdrift

摘要: Abstract In an experiment of a model snowdrift formed behind each two snow fences, which are the same in shape but different size, independence wind speed ratio between them from their length was observed. This phenomenon can be explained not by Froude number, effect wakes obstruction and movement characteristics particles. The duration storm snowdrifts glass beads activated clay particles become similar to other, were examined. It follows result that friction is equal threshold both particles, calculated comparing volume snowdrifts. suggests strongly relationships hold prototype snowdrift.