Swirl Distribution in Low Hub/Tip Ratio Blades
![](https://i0.wp.com/www.aerornd.com/wp-content/uploads/2017/10/key288.25.jpg?resize=250%2C150&ssl=1)
The low pressure (LP) fan and high pressure (HP) compressor are designed in a similar manner. These both suffer from design problems that are exacerbated by low hub/tip (h/t) ratio blades. One such problem is blade twist. We wanted to compare four vortex theory models, including Mixed-Vortex swirl distribution and three…