摘要
介绍了一种利用Possion方程生成平面叶栅H形网格的方法,与代数方法生成的网格相比,在同样的网格数目下,Possion方程方法生成的网格对叶型的进、出气侧的小圆的几何形状模拟的更真实,网格单元的分布更加均匀,正交性和光滑性更好。对于一种跨音速涡轮静叶栅来说,流场计算的结果表明:Possion方程方法生成的网格与代数方法生成的网格相比,在同样的网格数目下,能更加清晰的捕捉到叶型尾缘处的激波间断。
This paper has introduced a kind of method to obtain H-grid of planar cascade which involves solution of Possion equation . The grid from this method can simulate leading and trailing edge of blade much more accurately than that from algebraic method when grid number is equal, at the same time the grid from solution of Possion equation is better in orthnganality and smoothness than that from algebraic method. Calculation result of flow of a planar cascade shows： much more clear shock originated from trailing edge of blade can be captured when grid from solution of Possion equation is used to flow calculation than equal number grid from algebraic method.
出处
《汽轮机技术》
北大核心
2006年第6期413-415,共3页
Turbine Technology
