Processes of spray dispersion around bluff bodies in wind are central to many engineering applications; notably the design of wildfire sprinkler systems and spray cooling systems for urban areas. Simulation methods such as computational fluid dynamics (CFD) have been widely used for the prediction and analysis of such wind-body-spray interactions. However, there has been a lack of high-quality experimental data against which simulations can be validated. In this study, detailed outdoor experiments were performed on the dispersion of water sprays near an isolated 2.4 m cube mounted on the ground and immersed in the atmospheric boundary layer. Sixteen experiments were conducted, each with either a butterfly or hollow-cone sprinkler implemented on the windward or leeward side of the cube. The deposition of water was measured on the cube surfaces and ground, and high-frequency air velocity measurements were taken at three heights to characterise the atmospheric boundary layer flow. Separate experiments were conducted in a test enclosure using a high-speed videography technique to measure the spatial and temporal distributions of mass flow rate, droplet size, and droplet velocity within each spray. Comprehensive data is presented that is well suited for use in validating simulations of wind-body-spray interactions.

风中钝体周围的喷雾分散过程是许多工程应用的核心。尤其是为城市地区设计的野火喷水灭火系统和喷雾冷却系统。计算流体动力学 (CFD) 等模拟方法已广泛用于预测和分析此类风-体-喷雾相互作用。然而，缺乏可以验证模拟的高质量实验数据。在这项研究中，对安装在地面上并浸入大气边界层中的孤立的 2.4 m 立方体附近的水喷雾的分散进行了详细的户外实验。进行了 16 个实验，每个实验都在立方体的迎风面或背风面安装了一个蝶形或空心锥形喷水器。测量立方体表面和地面上的水沉积，并在三个高度进行高频空气速度测量，以表征大气边界层流动。使用高速摄像技术在测试外壳中进行单独的实验，以测量每次喷雾中质量流量、液滴尺寸和液滴速度的空间和时间分布。提供了非常适合用于验证风-体-喷雾相互作用模拟的综合数据。和每次喷雾内的液滴速度。提供了非常适合用于验证风-体-喷雾相互作用模拟的综合数据。和每次喷雾内的液滴速度。提供了非常适合用于验证风-体-喷雾相互作用模拟的综合数据。