A dataset for non-reflecting boundary conditions in the context of the discontinuous Galerkin method

This is a dataset for computational work investigating non-reflecting boundary conditions (NRBCs). The framework used is based on a high-order nodal discontinuous Galerkin method. The flow is described by the two-dimensional non-linear Euler equations. <br><br>The data explores the efficacy of different NRBCs, mainly: perfectly matched layers (PML), sponge layers, supersonic layers, Riemann-extrapolation methods and a new polynomial-correction (PC-)Navier-Stokes charactestic boudnary condition (NSCBC) approach. Additionally, hybrid methods also are used, by combining some of these methods together (refer to folder name). <br><br>Finally, the configuration file for generating each of these datasets is included, per folder.<br>

本数据集用于开展无反射边界条件（non-reflecting boundary conditions, NRBCs）的计算研究。其所采用的框架基于高阶节点间断伽辽金方法，流场由二维非线性欧拉方程刻画。<br><br>本数据集探究了多种无反射边界条件的应用效能，主要包括：完美匹配层（perfectly matched layers, PML）、海绵层、超音速层、黎曼外推方法，以及一种新型多项式校正（PC-）Navier-Stokes特征边界条件（NSCBC）方案。此外，研究还通过组合部分上述方法采用了混合方法，具体可参考对应文件夹名称。<br><br>最后，每个文件夹均附带了用于生成对应数据集的配置文件。