在实验吸力的范围内，有效内聚力受吸力的影响比有效内摩擦角更明显。
In a given suction range, the influence of the suction on the effective cohesion is more evident than the friction Angle.
基于湿吸力概念，分析并给出了有效应力公式，建议了非饱和土的状态分类及有效应力原理。
Based on this absorbed suction concept, the classification of saturation in soil and a principle of effective stress are proposed for unsaturated soils.
结果表明，正弯可以有效遏止角区分离，改变吸力面的分离形态，但不能完全消除吸力面的分离。
The results show that a positive bowed blade can restrain the corner separation and change the separation configuration, while it can not avoid the flow separation on the suction surface.
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