Feasible Concept of an Air-Driven Fan with a Tip Turbine for a High-Bypass Propulsion System
AbstractThe reduction in specific fuel consumption (SFC) is crucial for small/mid-size cost-controllable aircraft, which is very conducive to reducing cost and carbon dioxide emissions. To decrease the SFC, increasing the bypass ratio (BPR) is an important way. Conventional high-BPR engines have several limitations, especially the conflicting spool-speed requirements of a fan and a low-pressure turbine. This research proposes an air-driven fan with a tip turbine (ADFTT) as a potential device for a high-bypass propulsion system. Moreover, a possible application of this ADFTT is introduced. Thermodynamic analysis results show that an ADFTT can improve thrust from a prototype turbofan. As a demonstration, we selected a typical small-thrust turbofan as the prototype and applied the ADFTT concept to improve this model. Three-dimensional flow fields were numerically simulated through a Reynolds averaged Navier-Stokes (RANS)-based computational fluid dynamics (CFD) method. The performance of this ADFTT has the possibility of amplifying the BPR more than four times and increasing the thrust by approximately 84% in comparison with the prototype turbofan. View Full-Text
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Huang, G.; Xiang, X.; Xia, C.; Lu, W.; Li, L. Feasible Concept of an Air-Driven Fan with a Tip Turbine for a High-Bypass Propulsion System. Energies 2018, 11, 3350.
Huang G, Xiang X, Xia C, Lu W, Li L. Feasible Concept of an Air-Driven Fan with a Tip Turbine for a High-Bypass Propulsion System. Energies. 2018; 11(12):3350.Chicago/Turabian Style
Huang, Guoping; Xiang, Xin; Xia, Chen; Lu, Weiyu; Li, Lei. 2018. "Feasible Concept of an Air-Driven Fan with a Tip Turbine for a High-Bypass Propulsion System." Energies 11, no. 12: 3350.
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