The contrast of new designed blade with the original one is made in the design of freevortexflow combining with aft-loading profile.
在自由涡与后加载叶型相结合的设计中，对新设计与原设计进行了对比。
2
Then basing on the free-vortex equation, potential equation and stream function of flow are achieved by mathematical analyze, and solving these equations gives flow fields.
从自由涡运动方程出发，推导出管内流场的势函数和流函数方程，获得了管内流场的数学分析解；
3
It is verified that the design method of freevortexflow is still important in advanced turbine design.