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采用一种改进的Ｒｏｅ格式对平面叶栅的无粘流动进行了数值模拟，并与Ｒｏｅ格式的计算结果进行了比较。采用四阶Ｒｕｎｇｅ－Ｋｕｔａ时间差分格式，空间三阶有限体积法。网格生成采用贴体网格近壁面修正的方法。计算结果表明，该格式在减少格式对网格的依赖性，抑制数值粘性方面具有明显的作用。
An improved Roe scheme is used to simulate the non-viscous flow of a planar cascade. The results are compared with those of the Roe scheme. The fourth-order Runge-Kuta time difference scheme and the third-order finite volume method are used. Mesh generation using close-fitting grid approach to the wall near the wall. The results show that the format has a significant effect in reducing the dependence of the format on the grid and suppressing the numerical viscosity.