The inlet flow angle and diviation angle were confirmed which was applied to low cascade experiment result of American NACA, and controlled diffuser factor and flow deflection angle in design.
并应用美国NACA低速叶栅试验结果确定流入角和落后角，设计中控制扩散因子和气流折转角。
For matching turbine work condition, designed a diffuser that transformed square to round, chose Central Line and shape changed method, defined diffuser expanding Angle.
给出了一种亚音速方转圆扩压器的设计方法，并对中心线形状、型面变化规律和扩张角等进行了选择和说明。
Through a numerical simulation investigated is the impact on the cascade performance of the curved height and curved angle in a curved diffuser cascade having different turning angles.
通过数值模拟研究不同折转角弯曲扩压叶栅中弯高、弯角对其气动性能影响，利用试验设计和遗传算法实施方案选择和优化设计，给出不同折转角下弯高、弯角最佳匹配范围。
Principes and some Suggestions are proposed that should be followed when a convergence or divergence diffuser is used in design. The method selecting the wall slope Angle is provided.
提出了在设计中采用收敛形或扩张形扩压器时所应遵循的原则和建议以及壁面收敛角的选择方法。
The first scheme was a diffuser with wide cone angle.
一种是大扩压角内有分割锥的扩压器 ；
The first scheme was a diffuser with wide cone angle.
一种是大扩压角内有分割锥的扩压器 ；
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