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AE 433 – Introduction to AircraftGas Turbine Engines
Daniel J. Bodony
Department of Aerospace EngineeringDepartment of Mechanical Science & Engineering (Affiliate)
AE433 Fall 2009
Example: P&W 6000
Major components
AE433 Fall 2015
combustor turbinefan & compressor exhaust
Major components—Description0. freestream conditions1. entrance plane of cowl—isentropically decelerate and compress 2. entrance plane of compressor—compress gas by work3. entrance of combustor—increase gas internal energy by combustion4. entrance of turbine—extract work to power compressor5. exit of turbine6. afterburner—further increase gas internal energy by combustion7. entrance of nozzle8. nozzle throat9. nozzle exit—convert gas internal energy into kinetic energy, i.e., thrust
AE433 Fall 2015
Major components—Essential Fluid Mechanics
• Inlet, compressor, turbine– isentropic flow– shocks– energy exchange via work
• Combustor– combustion– “Rayleigh” flow
• Nozzle– quasi-1D gas dynamics– shocks– {over,under,perfectly}-expanded jet
AE433 Fall 2015
Turbo-jetGeneral Electric J85-GE-17A
Turbo-fanfancompressorcombustorturbine
AE433 Fall 2015
Turbo-fan
Rolls-Royce Trent 1000
Turbo-fanfancompressorcombustorturbine
AE433 Fall 2015
Turbo-propLycoming T 53
Turbo-propfanpropellercompressorcombustorturbine
AE433 Fall 2015
Compressor & Turbine
• How is work done on, extracted from the gas?
Elements of airfoiltheory & “Euler’s” equation
AE433 Fall 2015
So, yes
• We will still need material covered in– AE 311 (incompressible flow)– AE 312 (compressible flow)– ME 300 (thermodynamics)
• Plus, we’ll have to develop new, and more advanced concepts
AE433 Fall 2015