摘要
本文对数值求解微分方程法生成贴体坐标网格的技术进行了探讨和尝试。文中不仅对数值求解双调和方程的两种不同方法作了介绍，还利用该方程生成了典型的Ｈ型、Ｃ型、Ｏ型网格。结果表明，双调和方程法在控制网格线间距及与边界的正交性方面具有很强的能力，所生成的网格质量令人满意，且可用于复杂的物理区域。因而，采用双调和方程生成贴体坐标网格是流场数值模拟中一种有效的、高质量、具有广泛通用性的网格生成技术。
The grid generation technique for body-fitted coordinate system by means of numerical solution of differential equations is studied in this paper. It is not only introduced the two measures taken to solve the biharmonic equations, but the topical grids of H-type、C-type 、 and O-type are generated with this equation. Through the examples of grids generated, it is showed that the method presented has a great capability to control the grid space distance and its orthogonality on boundary, the quality of grids g...
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2001年第S1期29-32,共4页
Journal of Engineering Thermophysics
关键词
贴体坐标
网格生成
双调和方程
耦合解法
直接解法
body-fitted coordinate system
grid generation
biharmonic equations
coupled approaCh
non-coupled approach.
