Building-Cube Method for Flow Problems with Broadband Characteristic Length
Building-Cube Method for Flow Problems with Broadband Characteristic Length
复制标题
宽带特征长度流问题的建立方法
DOI：
10.1007/978-3-642-59334-5_7
复制
发表时间：
2003
影响因子：
2.9
通讯作者：
K. Nakahashi
中科院分区：
文献类型：
--
作者：
K. Nakahashi
本文讨论了近期计算环境对新一代CFD的要求，提出了一种新的计算方法--建筑立方体方法，该方法针对复杂几何形状的大规模、高分辨率计算。在本方法中，将流场划分为多个大小不同的立方体(2D正方形)。每个立方体是一个具有等间距和等节点数的笛卡尔网格的计算子域。每个立方体的几何尺寸是通过适应几何和流动特征来确定的，以适应流动的宽带特征长度。每个立方体中等间距和等数量的笛卡尔网格使流动求解器的并行化和处理海量数据输出变得容易。对激波/边界层相互作用问题进行了试验。
In this paper, requirements for the next generation CFD in the near-future computational environment is discussed and a new approach named Building-Cube Method is proposed aimed for large-scale, high resolution computations around a complex geometry. In the present method, a flow field is divided into a number of cubes (squares in 2D) of various sizes. Each cube is a computational sub-domain with Cartesian mesh of equal spacing and equal number of nodes. The geometrical size of each cube is determined by adapting to geometry and flow features so as to cope with broadband characteristic length of the flow. Equal spacing and equal number of Cartesian grid in each cube make it easy to parallelize the flow solver and to handle huge data output. The approach is tested for a shock/boundary layer interacting problem.