In sandy environments, like the beach-dune system, buildings not only affect the airflow, but also the aeolian sediment transport in their surroundings. In this study, we determine how the horizontal size of sediment deposition patterns around buildings depends on the building's dimensions. Four one-day experiments were conducted at the beach using box-shaped scale models. We tested 32 building geometries, where scale model height, width and length ranged between 0.3 and 2.0 m. The deposition patterns were substantial in size: the total length and width of the deposition area were up to an order of magnitude larger than the horizontal building dimensions. It was found that the size of upwind and downwind deposition patterns depended more on the building width perpendicular to the wind direction (w), than on the building height (h). Building length had little influence. Especially the combined effect of w and h correlated well with horizontal deposition size. This is expressed in a new scaling length B for deposition around buildings, with $B=w^{2/3}·h^{1/3}$. As a first validation, the spatial dimensions of the initial deposition patterns observed around a scale model of 2.5 × 12 × 2.5 m, placed at the beach for five weeks, showed good agreement with those predicted based on B.

在沙质环境中，如沙滩-沙丘系统，建筑物不仅会影响气流，还会影响周围环境的风积沉积物输送。在这项研究中，我们确定建筑物周围沉积物沉积模式的水平大小如何取决于建筑物的尺寸。使用箱形比例模型在海滩上进行了四次为期一天的实验。我们测试了 32 种建筑几何图形，其中比例模型的高度、宽度和长度范围在 0.3 到 2.0 m 之间。沉积图案的尺寸很大：沉积区域的总长度和宽度比水平建筑尺寸大一个数量级。发现上风和下风沉积模式的大小更多地取决于垂直于风向的建筑物宽度（w)，而不是建筑物高度 ( h )。建筑长度影响不大。特别是w和h的组合效应与水平沉积尺寸密切相关。这以建筑物周围沉积的新比例长度B表示，其中$乙={瓦}^{2/3}·H^{1/3}$. 作为第一次验证，在 2.5 × 12 × 2.5 m 的比例模型周围观察到的初始沉积模式的空间维度，在海滩上放置了五周，与基于B 的预测结果非常吻合。