摘要
对由气动设计所得到的初始叶型,通过曲面蒙皮技术得到参数化曲面片,并将物理域边界统一成与叶片相同的参数曲面形式,建立求交点交线算法。通过提出几何拓扑关系和疏密系数,自动生成三维贴体网格。本方法可用于叶片较大弯扭的末级长叶片优化设计。
For the last stage long bow blade profile, surface envelop technique is adopted to obtain the sectional blade profile with parameter surface model. Then the other normal boundary surfaces are united with the blade to be the same surface model and a subprogram is established to find the point or line of intersection. For the given geometrical topology and grid density coefficient, it can automatically generate 3D body -fitted grid. This technique can be used to the optimization of long blade.
出处
《汽轮机技术》
北大核心
2008年第4期251-252,共2页
Turbine Technology
关键词
末级长叶片
自由型曲面
贴体网格
last stage long blade
free curved surface
body fitted grid
