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YJ-2030: Candidate Engine for a Supersonic Business Jet AIAA Foundation 2019 – 2020 Undergraduate Engine Design Competition

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YJ-2030: Candidate Engine for a Supersonic Business Jet AIAA Foundation 2019 – 2020 Undergraduate Engine Design Competition YJ-2030: Candidate Engine for a Supersonic Business Jet AIAA Foundation 2019 – 2020 Undergraduate Engine Design Competition Advisor: Dr. Jerry Seitzman Mr. Russell Denney Team Leader: Ted Vlady Team Members: Soon Keat Ong Oscar Klempay Steve Zakharov SIGNATURE PAGE: Design Team: Oscar Klempay #738508 Soon Keat Ong #738218 Ted Vlady #921865 Steve Zakharov #921876 Faculty Advisors: Mr. Russell Denney #414062 Dr. Jerry Seitzman #070425 Executive Summary: The YJ-2030 is a candidate engine to be installed on the next supersonic business jet. It offers high performance across the flight envelope with a similar nacelle envelope to the baseline engine. The features on the YJ- 2030 allow it to supercruise at Mach 2.1 over the water with the potential to reach Mach 3.0 flight. The engine implements new material and manufacturing technologies that decrease its weight while increasing component performance. The engine meets Stage 5 noise constraints and supercruise emissions goals. The LTO emissions performance must be revisited during component testing. A summary of the YJ-2030 components and performance is shown below. Component Description Engine Architecture Afterburning Mixed Flow Turbofan Inlet 4 shock, 2-D Mixed Compression Supersonic inlet Fan 3-Stage High Efficiency Fan with Polyimide Fan Blades HPC 6 Stage All Blisk HPC Burner Next generation annular, lean-premixed combustor HPT 2 Stage cooled HPT manufactured from CMC HPC 2 Stage uncooled LPT manufactured from CMC Mixer Full composite deeply scalloped, highly lobed mixer design Afterburner Shares duct with mixer-ejector and core-bypass mixer to reduce length Nozzle Fully Variable Axisymmetric Converging Diverging Nozzle Performance Metric Value Fan Diameter (in) 49.2 Weight (lbm) 4338 Engine + Inlet Length (feet) 34.66 feet NYC to London Fuel burn (lbm) 92769 Time for NYC to London 4:57 Range at Mach 0.98, 40000 feet (nm) 5300 Takeoff Exit Jet Velocity 1100 ft/s with Mixer-Ejector Active Supercruise NOx emissions (g/kg) 4.83 LTO cycle NOx Does Not Meet Requirement* *NOx relationships must be revisited after combustor testing i Table of Contents 1. Introduction ............................................................................................................................ 1 2. Requirements Definition ........................................................................................................ 2 2.1 Mission Definition ...................................................................................................................... 2 2.2 Baseline Engine ........................................................................................................................... 2 2.3 Thrust requirements .................................................................................................................. 3 2.4 Additional Requirements ........................................................................................................... 5 3. Cycle Analysis ........................................................................................................................ 5 3.1 Cycle Architecture ...................................................................................................................... 5 3.2 Addition of Augmentor .............................................................................................................. 7 3.3 Cycle Optimization ..................................................................................................................... 8 3.3.1 Approach ................................................................................................................................................ 8 3.3.2 Assumptions ........................................................................................................................................... 9 3.3.3 Cycle Optimization Results.................................................................................................................. 11 3.4 Final Cycle Summary............................................................................................................... 13 4. Inlet ....................................................................................................................................... 15 4.1 Inlet Architecture ..................................................................................................................... 15 4.2 Inlet Design ............................................................................................................................... 16 4.3 Inlet Off Design Performance ................................................................................................. 19 4.4 Materials and Manufacturing ................................................................................................. 21 5. Compressors ......................................................................................................................... 21 5.1 Design Approach ...................................................................................................................... 21 5.2 Fan ............................................................................................................................................. 23 5.2.1 Fan Design Results ............................................................................................................................... 24 5.2.2 Fan Blade Design ................................................................................................................................. 27 5.2.3 Fan Off Design Performance ............................................................................................................... 28 5.3 High Pressure Compressor ...................................................................................................... 29 5.3.1 HPC Design Results ............................................................................................................................. 29 5.3.2 HPC Blade Design ............................................................................................................................... 32 5.3.3 High Pressure Compressor Off Design Performance........................................................................... 32 5.4 Materials and Manufacturing ................................................................................................. 33 6. Combustor ............................................................................................................................ 35 6.1 Combustor Architecture .......................................................................................................... 36 6.2 Combustor Design .................................................................................................................... 36 6.2.1 Diffuser Design .................................................................................................................................... 36 6.2.2 Main Combustor Design ...................................................................................................................... 37 6.2.3 Combustor Liner Design ...................................................................................................................... 40 6.3 Combustor Off Design Performance ...................................................................................... 42 6.4 Combustor Emissions .............................................................................................................. 42 ii 6.5 Materials And Manufacturing ................................................................................................ 44 7. Turbines ................................................................................................................................ 45 7.1 Design Approach ...................................................................................................................... 45 7.2 High Pressure Turbine............................................................................................................. 46 7.2.1 HPT Design Results ............................................................................................................................. 47 7.2.2 HPT Blade design ................................................................................................................................ 50 7.2.3 HPT Off Design Performance .............................................................................................................. 51 7.3 Low Pressure Turbine ............................................................................................................. 52 7.3.1 LPT Design Results.............................................................................................................................. 52 7.3.2 LPT Blade Design ................................................................................................................................ 55 7.3.3 LPT Off Design Performance .............................................................................................................. 56 7.4 Materials and Manufacturing ................................................................................................. 57 8. Mixer, Afterburner and Mixer Ejector................................................................................ 58 8.1 Core-Bypass Mixer ..................................................................................................................
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