粉雪雪崩中雪粒大小的研究
A study of the size of snow particles in powder snow avalanches
摘要：
在这项工作中，我们研究了粉末雪崩现象中所涉及的颗粒的大小。为了确定这些尺寸，我们研究了粒子在到达雪崩的“身体”之前必须面对的所有现象。我们研究了雪崩底部的边界层。我们确定，与实验数据的帮助下，可以被雪崩夹带的颗粒的尺寸范围。然后，我们研究这些粒子到达边界层顶部，从而参与雪崩的可能性。我们的最终结果是，粉末雪崩中更常见的悬浮颗粒尺寸小于200微米。
英文摘要：
In this work, we study the size of the particles involved in a powder snow avalanche phenomenon. To determine these sizes, we study all the phenomena the particles have to face before arriving in the "body" of the avalanche. We study the boundary layer which is at the bottom of the avalanche. We determine, with the help of experimental data, the range of size of the particles that can be entrained by the avalanche. We then examine the possibility for these particles to reach the top of the boundary layer, and so to take part in the avalanche. Our final result is that the more frequent particles suspended in a powder snow avalanche have a size lower than 200 micrometers.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
