Some challenges of realistic flow simulations by unstructured grid CFD
Some challenges of realistic flow simulations by unstructured grid CFD
复制标题
非结构化网格 CFD 进行真实流动模拟的一些挑战
DOI：
10.1002/fld.559
复制
发表时间：
2003
影响因子：
1.8
通讯作者：
F. Togashi
中科院分区：
文献类型：
--
作者：
K. Nakahashi;Yasushi Ito;F. Togashi
本文讨论用非结构网格方法计算具有相对运动的几何复杂物体的绕流问题。为了提高处理复杂几何形状的能力，提出了一种结合波前法和几何特征提取技术的曲面三角剖分方法。采用光固化快速成型（STL）数据作为CAD系统和表面网格生成器之间的接口。运动物体采用重叠非结构网格法处理。该方法的能力被证明为模拟飞机分离过程中的火箭助推器和大黄蜂在飞行中。在大黄蜂模拟中，天线、腿和刺等详细部件都包含在计算网格中。扑翼运动采用重叠非结构网格方法，将机翼周围的网格重叠在固定的大黄蜂身体周围的网格上，并随时间移动来模拟扑翼运动。版权所有© 2003年约翰威利父子有限公司。
This paper discusses the unstructured grid method to compute flows around geometrically complex bodies having relative motions. To enhance the capability to treat complex geometries, a surface triangulation method using the advancing front method coupled with geometric feature extraction technique is described. Stereolithography (STL) data are adopted as an interface between a CAD system and the surface grid generator. Moving bodies are treated by the overset unstructured grid method. The capability of the method is demonstrated for simulations of an airplane separation process from a rocket booster and a hornet in flight. In the hornet simulation, the detailed components such as antennas, legs and a sting are all included in the computational grid. The flapping wings are treated by the overset unstructured grid method where a grid around the wing is overlapped on a stationary grid around the body of a hornet and moves with time to simulate the flapping motion. Copyright © 2003 John Wiley & Sons, Ltd.
三维可压缩流混合非结构移动网格法的应用
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
仲智博紀;松野謙一;山川勝史;S.Asao;H. Asakawa
通讯作者：
H. Asakawa