Jet Propulsion: A Simple Guide to the Aerodynamic and Thermodynamic Design and Performance of Jet EnginesThis is the second edition of Cumpsty's excellent self-contained introduction to the aerodynamic and thermodynamic design of modern civil and military jet engines. Through two engine design projects, first for a new large passenger aircraft, and second for a new fighter aircraft, the text introduces, illustrates and explains the important facets of modern engine design. Individual sections cover aircraft requirements and aerodynamics, principles of gas turbines and jet engines, elementary compressible fluid mechanics, bypass ratio selection, scaling and dimensional analysis, turbine and compressor design and characteristics, design optimization, and off-design performance. The book emphasises principles and ideas, with simplification and approximation used where this helps understanding. This edition has been thoroughly updated and revised, and includes a new appendix on noise control and an expanded treatment of combustion emissions. Suitable for student courses in aircraft propulsion, but also an invaluable reference for engineers in the engine and airframe industry. |
Contents
The New Large Aircraft Requirements and Background | 3 |
The Aerodynamics of the Aircraft | 15 |
The Creation of Thrust in a Jet Engine | 25 |
The Gas Turbine Cycle | 30 |
The Principle and Layout of Jet Engines | 47 |
Elementary Fluid Dynamic Mechanics of Compressible Gases | 60 |
Selection of Bypass Ratio | 69 |
Dynamic Scaling and Dimensional Analysis | 80 |
Lift Drag and the Effects of Manoeuvring | 189 |
Engines for Combat Aircraft | 201 |
Design Point for a Combat Engine | 221 |
Combat Engines Offdesign | 242 |
Turbomachinery for Combat Engines | 262 |
A Return to the Civil Transport Engine | 267 |
A Return to the Civil Transport Engine | 269 |
To Conclude | 283 |
Turbomachinery Compressors and Turbines | 94 |
Overview of the Civil Engine Design | 108 |
Engine Component Characteristics and Engine Matching | 111 |
Component Characteristics | 113 |
Engine Matching Offdesign | 143 |
Design of Engines for a New Fighter Aircraft | 177 |
A New Fighter Aircraft | 179 |
Noise and its Regulation | 289 |
Bibliography | 297 |
| 300 | |
| 301 | |
Design sheets for New Large Civil Aircraft and New Fighter Sorcraft | |
Common terms and phrases
afterburner altitude assumed axial Boeing bypass ratio bypass stream calculations Chapter choked civil combustion combustor component compression compressor and turbine compressor delivery temperature constant cooling air core and bypass core compressor cruise design point downstream drag effect equal equation exit fan pressure ratio Fighter Aircraft Figure flight Mach number flight speed flow of air fuel flow gas turbine gross thrust HP compressor increase isentropic efficiency jet engine jet pipe jet velocity kg/h/kg kg/s Large Aircraft lift coefficient loss lower LP shaft LP turbine mair mass flow rate maximum mixed noise non-dimensional mass flow normally off-design operating point outlet overall pressure ratio polytropic efficiency propelling nozzle range reduced rotational speed rotor specific fuel consumption specific thrust stages stagnation pressure stagnation temperature static pressure stator temperature ratio temperature rise tonne tropopause turbine inlet temperature turbojet unit mass flow weight wing Wnet
Popular passages
Page 300 - JA: Properties of Air and Combustion Products With Kerosine and Hydrogen Fuels.