1. AE 433 – Introduction to Aircraft Gas Turbine Engines
Daniel J. Bodony
Department of Aerospace Engineering
Department of Mechanical Science & Engineering (Affiliate)

2. Example: P&W 6000
AE433 Fall 2009

3. Major components fan & compressor combustor turbine exhaust
AE433 Fall 2015

4. Major components—Description
0. freestream conditions
entrance plane of cowl—isentropically decelerate and compress
entrance plane of compressor—compress gas by work
entrance of combustor—increase gas internal energy by combustion
entrance of turbine—extract work to power compressor
exit of turbine
afterburner—further increase gas internal energy by combustion
entrance of nozzle
nozzle throat
nozzle exit—convert gas internal energy into kinetic energy, i.e., thrust
AE433 Fall 2015

5. Major components— Essential Fluid Mechanics
Inlet, compressor, turbine
isentropic flow
shocks
energy exchange via work
Combustor
combustion
“Rayleigh” flow
Nozzle
quasi-1D gas dynamics
{over,under,perfectly}-expanded jet
AE433 Fall 2015

6. Turbo-jet General Electric J85-GE-17A Turbo-fan fan compressor
combustor
turbine
AE433 Fall 2015

7. Turbo-fan Turbo-fan fan compressor combustor turbine
Rolls-Royce Trent 1000
AE433 Fall 2015

8. Turbo-prop Lycoming T 53 Turbo-prop fan propeller compressor combustor
turbine
AE433 Fall 2015

9. Compressor & Turbine How is work done on, extracted from the gas?
Elements of airfoil
theory & “Euler’s”
equation
AE433 Fall 2015

10. 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