Nomenclature

Low index

Operator

Definition

ambient

inlet

fan

compressor

combustion chamber

turbine

afterburner

nozzle

 

 

Latin letters

Symbol

Dimension

Definition

speed of sound

critical speed of sound

exit speed from nozzle

specific fuel consumption

air mass flow

altitude

 

adiabatic exponent

 

effective work of cycle

 

Mach number

 

flying speed

ambient pressure

total pressure at section

thrust

specific thrust

 

relative fuel consumption

 

gas dynamic function

ambient temperature

total temperature at section

gas constant

flying speed

 

Greek letters

Symbol

Definition

air-fuel ratio

mass change coefficient

air fraction for turbine cooling

efficiency of compressor

effective efficiency of cycle

flying efficiency

mechanical efficiency

total efficiency of cycle

efficiency of turbine

normalized velocity

pressure ratio of compressor

disposable pressure

pressure ratio of turbine

gas dynamic function

pressure losses in

gas dynamic function

nozzle speed coefficient