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Home 2017 October

Month: October 2017

Swirl Distribution in Low Hub/Tip Ratio Blades

John Evans 16 October 2017 18 November 2020Research, Turbofan research, turbofan

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…

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HP Compressor and Turbine Update

John Evans 9 October 2017 18 November 2020Research, Turbofan research, turbofan

The axial flow turbofan HP compressor and turbine were, and continue to be, a battle between size, efficiency, and power.  These two components affect the overall performance of the engine. While the design is still an on-going challenge, I can see the fun parts coming. Materials and elegantly designed component…

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