We explore the process of modeling aeolian snow transport around buildings by proposing a set of similarity requirements on simulating a single snow fall event with drifting. The similarity criteria are used to guide our wind tunnel tests from the particle selection to the simulation set-up, including the determination of test wind speed, snowfall intensity and transported snow profile. In parallel, a specific field experiment on snow precipitation and drift around a 1-m prototype cube was achieved in Harbin to serve as the reference for the subsequent test validation. After reproducing a target wind and snow environment with a scale of 1:4 versus that of the prototype measurement, two verification tests were put forward using snow and substitution particles, which can mimic the effects of changing wind directions on the snow distribution. Herein, the wind tunnel and outside prototype results show good qualitative agreement in our limited range of length scales and particle properties. In future work, the range of scales and range of parameter values should be increased.

我们通过提出一组模拟具有漂移的单个降雪事件的相似性要求来探索模拟建筑物周围的风积雪传输的过程。相似性标准用于指导我们的风洞测试，从粒子选择到模拟设置，包括确定测试风速、降雪强度和输送雪剖面。同时，在哈尔滨完成了一个围绕1米原型立方体的降雪和漂移的具体现场实验，作为后续测试验证的参考。在与原型测量的比例为 1:4 的比例再现目标风雪环境后，使用雪和替代粒子进行了两项验证测试，可以模拟风向变化对雪分布的影响。在此处，风洞和外部原型结果在我们有限的长度尺度和粒子特性范围内显示出良好的定性一致性。在未来的工作中，应该增加尺度范围和参数值范围。