Numerical data for "Barchan dune responses to a pair of obstacles"

This simulation models the formation and evolution of a barchan dune under turbulent flow conditions, as it interacts with obstacles placed within the domain. It captures the coupled dynamics between the fluid phase and the granular bed, allowing for the analysis of sediment transport, dune migration, and morphological changes. In particular, the presence of obstacles modifies the local flow field and sediment flux, influencing dune shape, displacement, and stability over time.本仿真模型针对湍流流场条件下新月形沙丘（barchan dune）的形成与演化过程开展建模，探究其与布置于计算域（domain）内障碍物的相互作用。该模型可刻画流体相（fluid phase）与颗粒床（granular bed）间的耦合动力学过程，可为泥沙输运、沙丘迁移及形态演化的分析提供支撑。具体而言，障碍物的存在会改变局部流场与泥沙通量，进而随时间影响沙丘的形态、位移与稳定性。