Three-Dimensional Flow Computations around an Airfoil by Building-Cube Method
Three-Dimensional Flow Computations around an Airfoil by Building-Cube Method
复制标题
利用建筑立方体法计算翼型周围的三维流动
DOI：
10.2514/6.2006-1104
复制
发表时间：
2006
期刊：
影响因子：
2.5
通讯作者：
M. Meinke
中科院分区：
文献类型：
--
作者：
K. Nakahashi;Aya Kitoh;Yuta Sakurai;M. Meinke
本文用建筑立方体方法(BCM)计算了在Re=2.1×106和13.3°迎角下的Aerospatiale A型翼型的小展宽绕流，该方法是为了在不久的将来实现高性能计算机而提出的。在BCM中，一个流场被描述为长方体的积木的集合，被称为‘立方体’。每个立方体都是流计算的一个子域，其中使用了等间距的笛卡尔网格。这使得能够在湍流边界层中使用高密度各向同性网格。计算结果反映了A型翼型流动的主要特征，如前缘附近的过渡和后缘区的小分离。
In this paper, flow around the Aerospatiale A-airfoil with a small spanwise extent at Re=2.1x10 6 and 13.3-deg angle of attack is computed using the Building-Cube Method (BCM), that was proposed aimed for DNS around real geometries with an expectation of near-future high-performance computers. In the BCM, a flow field is described as an assemblage of building blocks of cuboids, named ‘Cube’. Each cube is a sub-domain of the flow computation and an equally-spaced Cartesian mesh is used in it. This enables to use a high-density isotropic mesh in turbulent boundary layers. The computed results capture the main features of the A-airfoil flow, such as the transition near the leading edge and a small separation in the trailing edge region.