Glossary
What are transonic airfoils, and what is the active clearance control? Check out our technical dictionary and find out more about engine technology terms – from active clearance control to velocity triangle.
Phosphate treatment
Plastic media blasting
Powder metal (PM) components
Pollutants
Precipitation hardening
Pressure ratio
Principle of energy transfer
Propfan
Propulsion efficiency
Principle of energy transfer
To allow the transfer of energy in a turbomachine the flow of the working fluid must be deflected in bladed rotors. This means that the generation of energy (compressor) and absorption of energy (turbine) takes place in the rotors only, with the absolute flow being unsteady.
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