LES-DEM computations of barchan dunes

These files contain the 20 first seconds of results of a CFD-DEM simulation of a barchan dune formation and the codes used to analyze those results. The simulation was carried out using the open-source free CFDEM software, which couples the open-source CFD code OpenFOAM with the open-source DEM code LIGGGHTS. The simulations were tested and the results agreed quite well with the expected results from the literature. The dataset contains the results of an example case, from both the DEM and the CFD sides, and we also share the full Octave code for post-processing those results.

本数据集包含新月形沙丘（barchan dune）形成的计算流体动力学（Computational Fluid Dynamics，CFD）-离散元法（Discrete Element Method，DEM）耦合模拟前20秒的结果，以及用于分析上述结果的代码。本模拟采用开源免费的CFDEM软件开展，该软件将开源CFD代码OpenFOAM与开源DEM代码LIGGGHTS进行耦合。模拟已通过验证，其结果与文献中的预期结果吻合度较高。本数据集涵盖DEM与CFD两个维度的示例算例结果，同时我们还共享了用于对这些结果进行后处理的完整Octave代码。