INDUSTRY|mechanical engineering
- teoiric an diosca gníomhróra Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- actuator disc theory
- en
- Definition with respect to propeller and rotary-wing action,a theory which states that a propeller or rotary-wing system creates thrust or lift in reaction to the force required to accelerate a mass of air through its disc,the pressure differential before and behind the disc being equal to the rate of change of momentum of the air accelerated through the disc Reference Multilingual Aeronautical Dictionary(AGARD,1980)